Приемо-передающий модуль активной фазированной антенной решетки Х-диапазона частот

Изобретение относится к конструкции приемо-передающих модулей активных фазированных антенных решеток Х–диапазона частот. Техническим результатом данного изобретения является повышение точности определения скорости и угловых координат цели, увеличение дальности обнаружения объектов. Технический результат достигается тем, что в приемо-передающем модуле каждый модулятор выполнен в виде монолитной интегральной схемы (МИС) со встроенными аттенюатором n-разрядов, вход которого подключен к выходу предварительного усилителя мощности, и фазовращателем n-разрядов, при этом вход МИС приемного канала подключен через согласующий усилитель к малошумящему усилителю, который соединен с защитным устройством, вход которого соединен с выходом циркулятора, вход циркулятора соединен с выходом выходного усилителя мощности, вход предварительного усилителя мощности соединен с МИС передающего канала, а ответвляющая часть направленного ответвителя содержит согласованную нагрузку и детекторный диод, к выходу которого ...

РАДАРНЫЙ ДАТЧИК ДЛЯ АВТОМАТИЗАЦИИ ПРОИЗВОДСТВА И ЛОГИСТИКИ

Изобретение относится к радарному датчику для автоматизации производства и логистики. Техническим результатом является обеспечение миниатюризации измерительной системы в сочетании с высоким разрешением радара. Упомянутый технический результат достигается тем, что радарный датчик имеет радарную схемную систему, которая имеет радарный чип для создания, излучения, приема и оценки радарных измерительных сигналов, имеющий угол раствора меньше 5°, радарный чип имеет площадь поперечного сечения меньше 1 см2 и создает радарные измерительные сигналы, имеющие частоту свыше 200 ГГц, при этом ширина полосы модуляции для модуляции радарных измерительных сигналов, генерируемых радарной схемной системой, составляет свыше 10 ГГц. 15 з.п. ф-лы, 16 ил.

НАЗЕМНАЯ ОБЗОРНАЯ РАДИОЛОКАЦИОННАЯ СТАНЦИЯ АЭРОПОРТА И РАДИОЛОКАЦИОННАЯ УСТАНОВКА

Обзорная радиолокационная станция содержит в комбинации одну неподвижную антенну 10 для обеспечения электронного сканирования контролируемого пространства по азимуту в горизонтальной плоскости, источник излучения GEN и средства приема/передачи сверхвысокочастотного сигнала НFА, НFВ с циркулятором 20, канал передачи VЕ, канал приема VR и средства для подразделения упомянутого выше канала приема на сигнал суммы VRI и по меньшей мере один сигнал разности VR2. Первый и второй приемные элементы с изменением частоты RECI и RЕС2 принимают соответственно сигнал суммы и сигнал разности и выдают свои выходные сигналы, закодированные в цифровой форме. Средства обработки 40 обрабатывают цифровые сигналы, поступающие из первого и второго приемных элементов, для радиолокационного выявления объектов или целей в контролируемой зоне.

РАДИОЛОКАЦИОННАЯ СИСТЕМА

СИСТЕМА РАДАРНОГО УРОВНЕМЕРА МАЛОЙ МОЩНОСТИ, СОДЕРЖАЩАЯ ИНТЕГРАЛЬНУЮ СХЕМУ СВЧ

РАДИОЛОКАЦИОННАЯ СТАНЦИЯ С ОДНОВРЕМЕННОЙ ДВОЙНОЙ ПОЛЯРИЗАЦИЕЙ

... 1. Метеорологическая радиолокационная станция, содержащая: ! а. генератор последовательности импульсов энергии для создания радиоизлучений, пригодных для использования в метеорологической радиолокации; ! b. радиочастотный делитель мощности, электрически связанный с указанным генератором последовательности импульсов, для разделения радиоизлучений на одновременные парные составляющие излучения; ! с. антенну, электрически связанную с указанным делителем мощности, для передачи одновременных парных составляющих излучения в пространство управляемым образом и для сбора сигналов, отраженных от исследуемых объектов; ! d. ортогомодовый рупорный облучатель, расположенный на антенне для изменения одной из указанных составляющих излучения так, чтобы при передаче она имела фазу, отличающуюся от фазы другой составляющей излучения, и для приема отраженных сигналов диспаратных относительно друг друга фаз; ! е. подсистему приемника, электрически связанную с антенной, для обработки отраженных сигналов, собираемых ...

Дефлектор

Radarvorrichtung

Eine Radarvorrichtung (1) enthält einen Sender (10), einen Empfänger (20) und einen Signalprozessor (30). Der Sender (10) gibt eine Radarwelle aus. Der Empfänger (20) enthält mehrere Empfangsantennen (22) und mehrere Empfangsvorrichtungen (24). Jede der Empfangsvorrichtungen (24) mischt ein Empfangssignal von der entsprechenden Empfangsantenne (22) mit einem lokalen Signal (L) und gibt ein Schwebungssignal (B) aus. Der Signalprozessor (30) tastet das Schwebungssignal (B) ab, während er eine der Empfangsvorrichtungen (24) in einer Reihenfolge mit einer Abtastperiode (tc), die kleiner als die Hälfte einer Abtastperiode (Ts) ist, auswählt. Der Signalprozessor (30) tastet das Schwebungssignal (B) mit der Abtastperiode (Ts) ab und leitet Positionsinformationen eines Ziels durch Paarabgleich von Spitzen eines Anstiegsmodulationssignals (Bu) und eines Abfallmodulationssignals (Bd) des Schwebungssignals (B) her.

Frequency discriminator for radar transmitter has delay line and reference line, and uses reflections from detectors to extend linear range

The device has delay and reference lines via which components of a HF signal produced by a decoupler are passed and an arrangement for separating each component into a signal for each of two detectors that compare combinations of components. A leveling device receives a signal from the detectors with its input power held constant. An absorber absorbs noise radiation and reflections from the detectors are used to extend the linear range.

Radargerät

Sensor detecting presence of objects - contains generator, waveguide, output coupler and antenna forming discontinuity between generator and output coupler

The sensor consists of a generator, a waveguide, an output coupler and an antenna. The antenna is arranged as a discontinuity between the generator and the output coupler. The real component of the antenna impedance is large compared with the real component of the transformed impedance and can be large compared with the waveguide impedance. The magnitude of the imaginary component of the transformed impedance is such that it counteracts the imaginary component of the antenna impedance when a measurement object is present. The length of the transformation line (12.1) is such that the imaginary component of its impedance is the same with and without an object present. USE/ADVANTAGE - Operates continuously and can detect presence of metallic and non-metallic objects even under conditions of high humidity and fouling.

Verwendung einer in einen Mikrocontroller integrierten Signalerzeugungseinheit zur Ansteuerung von Hochfrequenzkomponenten eines Radarsensors

Die Erfindung betrifft die Verwendung einer in einen Mikrocontroller (200) eines Radarsensors integrierten Signalerzeugungseinheit (201) zur Ansteuerung von Hochfrequenzkomponenten (400) des Radarsensors. Die Erfindung betrifft weiterhin eine korrespondierende Schaltungsanordnung (100) für einen Radarsensor sowie ein korrespondierendes Verfahren.

ANTENNENVORRICHTUNG UND RADARVORRICHTUNG ZUR VERBESSERUNG DES ANTENNENWIRKUNGSGRADS

Es wird eine Antennenvorrichtung zur Verbesserung des Antennenwirkungsgrads offenbart, die Signale ausstrahlen kann, die keine Strahlungscharakteristik aufweisen, bei der eine maximale Strahlungsenergie von der Vorderseite aus ausgesendet wird, sondern die eine Strahlungscharakteristik haben, bei der die maximale Strahlungsenergie von entgegengesetzten seitlichen Seiten der Vorderseite aus ausgesendet wird.

Koppler und Verfahren zum Umsetzen von Signalen

Ein Koppler umfasst Differenz-Ports, einen Antennenport, einen Empfängerport, einen lokalen Port und einen Übertragungspfad. Die Differenz-Ports sind dafür ausgelegt, ein Differenzsignal zu empfangen. Der Antennenport ist dafür ausgelegt, ein gesendetes Signal auszugeben und ein empfangenes Signal einzugeben. Das gesendete Signal wird aus dem Differenzsignal abgeleitet. Der Empfängerport ist dafür ausgelegt, einen Teil oder eine Version des empfangenen Signals auszugeben. Der lokale Port gibt ein lokales Signal aus, das auch aus dem Differenzsignal abgeleitet wird. Der Übertragungspfad ist mit den Differenz-Ports, dem Antennenport, dem Empfängerport und dem lokalen Port gekoppelt.

Kompakter, flexibler und integrierter Millimeterwellenradarsensor

Mikrowellenplattenantenne, insbesondere für Dopplerradar.

Radarsensoranordnung an einem Kraftfahrzeug

Radarsensoranordnung an einem Kraftfahrzeug (10), mit mindestens zwei winkelauflösenden Radarsensoren (12), die zusammen mit einer Steuer- und Auswerteeinrichtung (14) ein kooperatives Radarsystem bilden, dadurch gekennzeichnet, dass die Radarsensoren (12) jeweils eine Gruppenantenne mit einer in Richtung der Winkelauflösung gekrümmten Apertur (16) aufweisen.

VORRICHTUNG ZUR RAUMUEBERWACHUNG MITTELS DOPPLER-RADAR

A Doppler radar area monitor wherein the oscillator forms at the same time the detector. It contains a field effect transistor, in the source and drain circuit of which a circuit element has been connected by means of a filter for picking off Doppler frequency signals. In this way a particularly simple, cost-effective, compact, light and highly reliable device can be produced.

Arrangement for switching microwave power between two outputs

A coupler network for power addition from four oscillators is driven switchably on one of its two input ports with a synchronisation signal which makes the four oscillators coherent and in consequence enables power addition. The network has two output ports, one of which carries the sum of all the oscillator powers and the other the difference between in each case two oscillator powers. The sum and difference outputs can be switched over by switching over the synchronisation input. The switching is carried out without any loss in the output power.

Leiterplatte, Hochfrequenzmodul und Radarvorrichtung

Die Erfindung bezieht sich auf eine Leiterplatte. Die Leiterplatte (10) umfasst ein Substrat (1), eine Wellenleiterleitung (2) und einen laminierten Wellenleiter (3). Die Wellenleiterleitung (2) ist zumindest teilweise auf einer ersten Oberfläche des Substrats (1) angeordnet. Die Wellenleiterleitung (2) überträgt ein Hochfrequenzsignal. Der laminierte Wellenleiter (3) ist innerhalb des Substrats (1) ausgebildet. Der laminierte Wellenleiter (3) ist mit der Wellenleiterleitung (2) elektromagnetisch gekoppelt und weist einen Ausleitungsabschnitt (3a) auf, der vom Inneren des Substrats (1) zu einer anderen Oberfläche als der ersten Oberfläche ausgeleitet ist. Der laminierte Wellenleiter (3) umfasst eine dielektrische Schicht (31), zwei Hauptleiterschichten (32) und eine Durchgangsleitergruppe (33). Die zwei Hauptleiterschichten (32) legt die dielektrische Schicht (31) in einer Dickenrichtung davon ein. In der Durchgangsleitergruppe (34) sind mehrere Durchgangsleiter (33) entlang einer Hochfrequenzsignal-Übertragungsrichtung ...

Modulationsanordnung zur wechselweisen Sperrung und Entsperrung zweier Wellenhohlleiter

Antenne

Eine Antenne weist einen Antennenkörper mit einer Mehrzahl von ersten Antennenelementen auf, die entlang einer ersten Geraden angeordnet sind. Im Antennenkörper ist ein Hohlleiter angeordnet, der zwischen den ersten Antennenelementen verläuft. Die ersten Antennenelemente sind als zwischen dem Hohlleiter und einer Oberfläche des Antennenkörpers laufende Öffnungen ausgebildet. Die Antenne ist ausgebildet, ein Signal in eine Raumrichtung abzustrahlen, die von einer Frequenz des Signals abhängig ist. Dabei weist der Antennenkörper ein elektrisch isolierendes Material auf, das mit einem leitfähigen Material beschichtet ist.

Antennenstruktur

Bei einer Antennenstruktur ist ein Träger (1, 11) vorgesehen, der an der Oberseite Antennenstrahlelemente (2) trägt und an der Unterseite ein Speisenetzwerk (3). Der Träger (1, 11) weist mindestens eine die Antennenstrahlelemente (2) gegen das Speisenetzwerk (3) schirmende Massefläche (6, 7) auf. Dadurch werden ungewollte Abstrahlungen des Speisenetzwerkes (3) in Abstrahlrichtung der Antennenstruktur wirksam unterdrückt. Zur HF-Signalzuführung zwischen Speisenetzwerk (3) und Antennenstrahlelementen (2) sind hochfrequenzmäßige Durchkontaktierungen (12) vorgesehen, die die Massefläche (6, 7) ohne Kontaktierung derselben durchdringen.

Nach dem Radar-Prinzip arbeitendes Füllstandsmessgerät

Nach dem Radar-Prinzip arbeitendes Füllstandmessgerät (12), das mindestens eine dielektrische Antenne (1) mit mindestens einem Speiseelement (2) und mit mindestens einer aus mindestens einem dielektrischen Material bestehenden Linse (3) aufweist, wobei das Speiseelement (2) elektromagnetische Strahlung emittiert und die Linse (3) mit der elektromagnetischen Strahlung beaufschlagt, wobei die Linse (3) die elektromagnetische Strahlung weiterführt und abstrahlt, wobei die Linse (3) mindestens eine äußere Komponente (4) und eine innere Komponente (5) aufweist, wobei das Speiseelement (2) die Linse (3) über die innere Komponente (5) mit der elektromagnetischen Strahlung beaufschlagt, wobei die äußere Komponente (4) zumindest eine teilweise sphärisch ausgestaltete Abstrahlfläche (6) und eine zumindest teilweise sphärisch ausgestaltete Innenfläche (7) aufweist, und wobei die innere Komponente (5) eine zumindest teilweise sphärisch ausgestaltete Kontaktfläche (8) aufweist.

Näherungssensor

Näherungssensor zur Messung des Abstands (D) eines Objekts (12), mit einem Mikrowellenoszillator (52), der als Ausgangssignal (54) eine Sendewelle (16) bereitstellt, welche der Näherungssensor (10) in Richtung auf das Objekt (12) als Freiraum-Sendewelle (16c) abstrahlt, die das Objekt (12), welches elektrisch leitfähig ist oder zumindest eine elektrisch leitfähige Oberfläche aufweist, als Freiraum-Reflexionswelle (30a) reflektiert und der Näherungssensor (10) als Reflexionswelle (30) empfängt, wobei eine Ermittlung des Reflexionsfaktors (Γ) aus der Sendewelle (16) und der Reflexionswelle (30) vorgesehen ist, welchen der Näherungssensor (10) als ein Maß für den Abstand (D) bereitstellt, dadurch gekennzeichnet, dass die Sendewelle (16) in einem Hohlleiter (22) als Hohlleiter-Sendewelle (16b) geführt ist, dass die Einkopplung der Sendewelle (16) in den Hohlleiter (22) mit einem Wellenmode vorgesehen ist, der zur Ablösung der Hohlleiter-Sendewelle (16b) an der Apertur (26) am vorderen Ende ...

Aperturantenne und Radarsystem mit einer derartigen Antenne

Biegsame Antennen mit künstlichen Impedanzoberflächen für Kraftfahrzeug-Radarsensoren

Eine biegsame druckbare Antenne für einen Kraftfahrzeug-Radar. Die Antenne kann auf ein dünnes biegsames Substrat gedruckt werden und kann somit gebogen werden, um sich an eine Oberfläche einer Fahrzeugkarosserie mit komplexer Krümmung anzupassen. Die Antenne kann an der Innenseite einer Karosserieoberfläche montiert werden, wie etwa einer Stoßfängerplatte, wo sie nicht zu sehen ist, aber Radarsignale nach außen senden kann. Die Antenne kann auch an der Außenseite einer unauffälligen Karosserieoberfläche montiert werden oder kann durchsichtig gemacht werden und auf der Innenseite oder Außenseite einer Glasfläche montiert werden. Die Antenne umfasst eine künstliche Impedanzoberfläche, die basierend auf der dreidimensionalen Form der Oberfläche, auf der die Antenne montiert ist, und dem gewünschten Radarwellenmuster spezifisch angepasst wird. Die Antenne kann für Anwendungen zur Kollisionsvermeidung bei Fahrzeugen unter Verwendung eines 22 bis 29 GHz- oder 76 bis 81 GHz-Radars verwendet werden ...

MEHRSTRAHLIGER RADARSENSOR MIT EINER HALTERUNG FÜR EIN POLYROD

Hornantenne für ein Radarmessgerät sowie Radarmessgerät mit einer solchen Hornantenne

Hornantenne (1) für ein Radarmessgerät, insbesondere ein Radar-Füllstandmessgerät mit – einem vorderseitig in einer Hauptabstrahlrichtung (A) abstrahlenden Antennenhorn (3) mit einer rückseitigen Speisung (5), – einer wenigstens einteiligen Füllung (7) des Antennenhorns (3) aus einem dielektrischen Material, wobei die Füllung zu einer Innenseite des Antennenhorns (3) umlaufend beabstandet angeordnet ist sowie – einer zwischen der Füllung (7) und der Innenseite des Antennenhorns (3) angeordneten Absorbermatte (9), wobei Mittel (14, 18) vorgesehen sind, die geeignet ausgebildet sind, die Absorbermatte (9) formschlüssig an der Innenseite des Antennenhorns (3) zu halten.

Verfahren und Anordnung zur Bestimmung der Wandstärke eines zylindrischen Objektes

Die vorliegende Erfindung betrifft ein Verfahren sowie eine Antennenanordnung zur Bestimmung der Wandstärke eines dielektrischen zylindrischen Objektes. Bei dem Verfahren wird ein Abschnitt des zylindrischen Objektes mit Radarwellen bestrahlt und vom zylindrischen Objekt reflektierte Radarwellen werden erfasst und ausgewertet, um die Wandstärke des bestrahlten Abschnittes zu bestimmen. Das zylindrische Objekt wird dabei mit zylinderförmigen Radarwellen bestrahlt, deren Wellenform an die äußere Form des zylindrischen Körpers angepasst ist. Dies kann durch Nutzung einer Antennenanordnung mit einem speziell geformten Radarreflektor erreicht werden. Das vorgeschlagene Verfahren ermöglicht die hochgenaue Vermessung der Wandstärke zylindrischer Objekte auf kostengünstige Weise.

RADAR CORNER REFLECTOR

SENSOR ZUR ANWESENHEITSERKENNUNG VON OBJEKTEN

Method for optimizing radome for environment detection sensor mounted at e.g. front part of motor car, involves subjecting radome models to simulation process, and selecting optimized model based on radar-periodical transmission behavior

The method involves executing a qualitative analysis process and a quantitative analysis process on radar-periodical transmission behavior of paint components and plastic components for manufacturing radome models. The radome models are subjected to a simulation process based on the results of the qualitative and quantitative analysis of the paint components and the plastic components. An optimized radome model is selected based on the radar-periodical transmission behavior and reflectance behavior of the paint components and the plastic components. The radome is formed by a motor car construction part e.g. bumper and fairing. Independent claims are also included for the following: (1) a database system for paints and plastics (2) a radome for a motor car.

Microstrip antenna for microwave range

The equipment includes a conducting plate (26) and an insulating substrate (24) on the side of the plate, with the radiating elements (30) tuned to the frequency in question. A planar microwave strip arrangement is installed on the substrate, formed of a main conductors (36) with a number of branch conductors (44) connected at regular intervals. The elements are also in regular columns, in a field (28), along one side of the branch conductors.

Radarsensor, Radarsensor-System sowie Verfahren zur Bestimmung der Position eines Objekts mit horizontaler und vertikaler digitaler Strahlformung zur Vermessung von punkt- und flächenförmig reflektierenden Objekten

Beschrieben wird ein Radarsensor, insbesondere für ein Fahrzeug, mit einer Steuereinheit und einer Antennenanordnung, dadurch gekennzeichnet, dass der Radarsensor befähigt ist, einen Raum-Scan zur vertikalen und horizontalen Positionsbestimmung eines Objekts durchzuführen, zur Unterstützung der Unterscheidung der Geometrienatur des Objekts.

Antenne

Eine Antenne (100) beinhaltet mehrere Sendeantennen (40), welche die Folgenden sind: eine erste Sendeantenne (40a), die eine Sendewelle in eine Rechtsaufwärtsrichtung im Verhältnis zu einer Bezugsachse, die im Wesentlichen parallel zur Straßenoberfläche liegt, aussendet, eine zweite Sendeantenne (40b), die eine Sendewelle in eine Linksaufwärtsrichtung im Verhältnis zu einer Bezugsachse aussendet, eine dritte Sendeantenne (40c), die eine Sendewelle in eine Rechtsabwärtsrichtung im Verhältnis zur Bezugsachse aussendet, und eine vierte Sendeantenne (40b), die eine Sendewelle in eine Linksabwärtsrichtung im Verhältnis zur Bezugsachse aussendet. Ein Sendebereich der Sendewelle, die von jeweils der ersten Sendeantenne (40a), der zweiten Sendeantenne (40b), der dritten Sendeantenne (40c) und der vierten Sendeantenne (40d) ausgesendet wird, überlappt sich teilweise mit den Sendebereichen der Sendewellen, die von den in der Nähe befindlichen Sendeantennen ausgesendet werden.

DETEKTION INTERFERENZBEDINGTER STÖRUNGEN BEI FMCW-RADARSYSTEMEN

Im Folgenden wird ein Verfahren für ein Radarsystem beschrieben. Gemäß einem Beispiel weist das Radarsystem einen Lokaloszillator zur Erzeugung eines Lokaloszillatorsignals sowie mehrere Sendekanälen und mindestens einen Empfangskanal auf, denen das Lokaloszillatorsignal zugeführt ist. Die Sendekanäle sind dazu ausgebildet basierend auf dem Lokaloszillatorsignal HF-Radarsignale zu erzeugen und auszugeben, wobei die Sendekanäle Phasenschieber zur Einstellung der Phase der HF-Radarsignale aufweisen. Der Empfangskanal ist dazu ausgebildet, ein HF-Signal zu empfangen und dieses unter Verwendung des dem Empfangskanal zugeführten Lokaloszillatorsignals in ein Basisbandsignal zu konvertieren. Gemäß dem Ausführungsbeispiel umfasst das Verfarhen das Betreiben des Lokaloszillators im CW-Betrieb, das Einstellen einer bestimmten Kombination von Phasenverschiebungen der Phasenschieber der Sendekanäl, das Verändern der Phase des dem Empfangskanal zugeführten Lokaloszillatorsignals oder der Phasenverschiebungen ...

Radarsensor

Radarsensor

Die Erfindung betrifft einen Radarsensor mit einer Signalerzeugungseinrichtung (1), welche zwei Eingangssignale (2, 3) empfängt und daraus eine Folge von Ausgangssignalen (4) erzeugt zur Erzeugung eines abgestrahlten Radarsignals, mit einem Signalempfangseinrichtung zum Empfang und zur Verarbeitung reflektierter Radarsignale, welche zur Auswertung der empfangenen Signale weiterverarbeitet werden, wobei ein erstes Eingangssignal ein ansteigendes oder abfallendes Spannungssignal niederer Frequenz ist und ein zweites Eingangssignal aus einer Reihe ansteigender oder abfallender Spannungssignale höherer Frequenz besteht.

Wellenleiterstruktur, Antennenvorrichtung, welche die Wellenleiterstruktur verwendet, und Fahrzeugradarvorrichtung, in der eine Wellenleiterstruktur oder eine Antennenvorrichtung verwendet wird

Wellenleiterstruktur (1A–1P), die umfasst: eine Basis (2A–2C), die eine Anbringoberfläche (4a–4c) aufweist; ein Metallplattenelement (15A–15J), das eine Elastizität aufweist, das auf der Anbringoberfläche (4a–4c) gestapelt ist und das mit der Basis (2A–2C) zusammenwirkt, um einen Wellenleiter (7a) aufzubauen; einen Positionierungsmechanismus (21A–21M), der aufgebaut ist durch: ein Positionierungselement (10a–10d, 40, 50a, 50b), das so angeordnet ist, dass es von einem Bauteil der Gruppe bestehend aus der Basis (2A–2C) und dem Plattenelement (15A–15J) hervorsteht; und einen Zwischenpassabschnitt (25A–25F, 26A–26G), der an dem anderen Bauteil der Gruppe bestehend aus der Basis (2A–2C) und dem Plattenelement (15A–15J) ausgebildet ist und der mit dem Positionierungselement (10a-10d, 40, 50a, 50b) zusammengepasst ist, wobei der Positionierungsmechanismus (21A–21M) das Plattenelement (15A–15J) auf der Anbringoberfläche (4a–4c) der Basis (2A–2C) positioniert und ferner die Bewegung entlang der ...

Multikanalradarsystem

Multikanalradarsystem (10, 10') zum Bereitstellen von zueinander kohärenten Quellensignalen, umfassend: - eine Steuerungseinheit (12) und - mindestens zwei Sender-Empfänger-Einheiten (14, 14a, 14b, 14c, 14d), wobei jede der Sender-Empfänger-Einheiten (14, 14a, 14b, 14c, 14d) einen injektionsgesteuerten Oszillator (16, 16a, 16b, 16c, 16d) zum Erzeugen eines für die Sender-Empfänger-Einheit (14, 14a, 14b, 14c, 14d) spezifischen injektionsgesteuerten Oszillatorsignals durch Injektionssteuerung aufweist, der in einem Zustand ohne Injektionssteuerung mit einer für den injektionsgesteuerten Oszillator (16, 16a, 16b, 16c, 16d) spezifischen freien Frequenz schwingt, wobei jede der Sender-Empfänger-Einheiten (14, 14a, 14b, 14c, 14d) ausgebildet ist ein für die Sender-Empfänger-Einheit (14, 14a, 14b, 14c, 14d) spezifisches Quellensignal und ein für die Sender-Empfänger-Einheit (14, 14a, 14b, 14c, 14d) spezifisches Referenzsignal auf Basis des für die Sender-Empfänger-Einheit (14, 14a, 14b, 14c, 14d ...

Device for contact free determination of the current speed and distance covered of a walker, skater, runner, etc. uses a radar type sensor mounted in a half-cardanic manner or the users belt with a wrist display or similar

The device comprises a measurement unit (1) that is mounted in a half-cardanic and damped manner on the wearer's belt or similar. The measurement unit includes a radar sensor that scans the ground ahead of the wearer at a constant angle to enable the wearer's speed and distance traveled to be determined. Optimally the sensor can be linked in a wireless manner to a display on the wearer's wrist or similar. The invention also relates to a system with integrated microelectronics for determination of distance covered, average speed, etc. as well as instantaneous speed.

Radarsystem für ein Kraftfahrzeug

Radarsystem (10) für ein Kraftfahrzeug, umfassend wenigstens einen Radarsensor (12) und einen Stoßfänger (14), wobei der Stoßfänger (14) auf seiner Innenseite wenigstens eine integrierte, wannenförmig ausgebildete, eine Bodenfläche und an die Bodenfläche angrenzende Wandungen (18) umfassende Sensoraufnahme (16) für den Radarsensor (12) aufweist, wobei der Radarsensor kein eigenes Gehäuse und die Sensoraufnahme (16) Anlageabschnitte für Antennenelemente des Radarsensors (12) derart aufweist, dass die Radarsignale lediglich den Stoßfänger (14) durchstrahlen.

Vorwärtssicht-Radarsystem (FLR; Forward Looking Radar) zur dreidimensionalen Abbildung eines Geländeausschnitts

Radarantennenanordnung

Die Erfindung richtet sich auf eine Radarantennenanordnung, vorzugsweise in Mikrostreifenleiter-Technik, insbesondere für einen Radarsensor mittlerer bis großer Reichweite, umfassend wenigstens eine erste Antennengruppe mit mehreren einzelnen, untereinander gekoppelten Antennenelementen, sowie wenigstens eine zweite Antennengruppe mit mehreren einzelnen, untereinander gekoppelten Antennenelementen, wobei die Antennenelemente unterschiedlicher Antennengruppen galvanisch nicht miteinander verbunden sind, jedoch in einer gemeinsamen, vorzugsweise ebenen Fläche sowie miteinander verschränkt angeordnet sind.

Magnetic devices

Improvements in or relating to high frequency signalling systems

... 636,611. Radio receiving systems. WESTERN ELECTRIC CO., Inc. June 13, .1947, No. 15642. Convention date, June 27, 1946. [Class 40 (v)] [Also in Group XL (b)] Two amplitude-selective switches are coupled by symmetrical Y-branch connections to spaced points along a wave-guide connecting a common transmitting and receiving aerial to a transmitter, and a receiver is connected to the wave-guide through the resonant cavity of one of the switches. A transmitter T feeds an aerial AN through a rectangular wave-guide 9, 8, 7. The central section 8 of the guide forms an H-plane angle of 120 degrees with the end sections 7, 9. An RT switch 1 comprising a gas-discharge tube shunting a cavity resonator, Figs. 2, 3, 4 (not shown), is coupled to the guide at the junction of sections 8, 9, to form a symmetrical H-plane Y-connection. The switch 1 is so designed that the cavity is effectively 1 wavelength long when the gasdischarge tube is not fired, and thus produces an effective short-circuit across the ...

Improvements in or relating to electrical apparatus using electromagnetic wave guides

... 652,428. Automatic frequency control systems. DEPARTMENT OF COMMERCE, DIRECTOR OF THE OFFICE OF TECHNICAL SERVICES OF. Feb. 27, 1948, No. 5951. Convention date, Aug. 1, 1945. [Class 38 (iv)] [Also in Group XL (b)] A pulse echo system includes a first waveguide mixer adapted to mix part of the output of a transmitter with part of the output of a local oscillator to give an intermediate frequency, means to feed the output of this mixer to an automatic frequency control circuit to stabilize the local oscillator, a second wave-guide mixer in which part of the output of the local oscillator is mixed with the echo energy and means to feed the output of the second mixer to a receiver. The aerial of a radio echo system is connected to the transmitter by a rectangular wave-guide 32 and through a T-R switch and guide 34 to a rectangular guide 36 provided with a detector 43. Part of the transmitted energy is fed through an attenuating circular wave-guide 33 to a rectangular guide 35 and detector 42 ...

Improvements in or relating to radio transmitting and receiving systems

... 583,743. Wireless transmitting and receiving apparatus; radiolocation. BANWELL, C. J., WESTCOTT, C. H., and LEES, R. J. Nov. 24, 1944, No. 23499. [Classes 40 (iii) and 40 (v)] In a combined transmitter and receiver, the aerial, the transmitter and the receiver are connected by feeders to a common point, and switching means controlled by the transmitter output prevent that output from passing to the receiver, whilst permitting energy received during intervals between transmissions to pass unimpeded to the receiver. The switching means comprise discharge devices associated with quarter-wave or other tuned branch lines. The system has particular application to radiolocation systems employing pulses. In Fig. 2, the three feeders are marked A, T, R, and a discharge gap G1 is placed at a quarter-wavelength, or an odd and multiple thereof from the junction B. The gap breaks down and shorts the line R during transmission, and causes the branch R to present high impedance to the energy passing from ...

DOPPLER-EFFECT RADAR DEVICE

... 1447154 Radar JAY ELECTRONIQUE 7 Aug 1974 [16 Oct 1973] 34779/74 Heading H4D A Doppler-effect radar device comprises two resonant cavities 1, 2, each provided with a radiating aperture, the cavity 1 containing a SHF signal generating source 3 and the cavity 2 containing a SHF signal receiving member 4, and means for deriving a Doppler frequency signal from the output of said receiving member. The device is characterized by the two cavities being formed one beside the other with a common wall. As described, the cavities 1, 2 have rectangular cross-sections, and are in parallel, with a common narrow wall 9. They are metal-cast in one piece with a front wall 11 in which their apertures are formed. The source 3 is a Gunn-effect diode, whilst the receiving member 4 is a Schottky-type diode. Each cavity comprises in each of its walls adjacent the common wall 9 an orifice 17 or 171, said orifices being coaxially disposed. The diodes 3, 4 are clamped between pressure screws in the orifices ...

MICROWAVE REFLECTION SURVEY EQUIPMENT

Improvements in or relating to the detection of obstacles by electromagnetic waves

... 535,120. Locating objects by reflected waves. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Nov. 30, 1939, No. 31194. Convention date, Dec. 1, 1938. [Class 37] Obstacles are detected and 'their distance measured by measuring the time of propagation of ultra short waves to the obstacle and back after reflection therefrom, the receiver being blocked during the transmission of each impulse by a blocking impulse generator synchronized by the transmitter. An ultra short wave transmitter and a receiver provided with highly directional aerials are arranged side by side. The period of the transmitter impulses is so chosen as to be equal to the time taken by the wave to pass outwards and return between the transmitter and an obstacle located at the limit of the range, the duration of the impulses being very short compared with this period. During the transmission the receiver is blocked, so that it can only receive the reflected wave. The receiver amplifies the received signal and applies it to the ...

TRANSCEIVER ELEMENT

Radar apparatus and methods

Transceiver antenna coupling circuit

DUPLEXER

... 1291127 Waveguide duplexers RCA CORPORATION 22 Sept 1969 [30 Sept 1968] 46469/69 Heading H1W A duplexer comprises two parallel waveguide paths 17, 19 coupled at either end by quadrature hybrid couplers 13, 15 to afford four ports 41, 42, 43, 44, the paths each containing a non-reciprocal 180 degree phase shifter, one of the phase-shifters being reversible. As described (Fig. 1, not shown), the phase shifters are of the type using elongated, axial elements of square-loop ferrite which can be switched to a desired condition of remanence by a current pulse passed through an axial conductor. They are non-reciprocal in the sense that waves passing in one direction suffer 180 degrees more phase-shift than waves passing in the other. In the transmitting mode (Fig. 3), the phaseshifters are both set to delay waves passing from R to L by 180 degrees and to have no effect on waves passing from L to R. Taking into account the inherent 90 degree phase-shift of the hybrids 13, 15, it can be seen that ...

Integrated microwave circuit

All the microwave components involved in generating, transmitting and receiving millimetric microwave signals, including transmit/receive antennae, are integrated on a single soft substrate, the only off-substrate connections comprising DC power and relatively low-frequency control signal paths. Circuit components include a DC blocking capacitor of which one plate is a portion of a strip transmission line conductor (22), the other plate is the overlapping portion of an electrode (202) of a varactor diode PILL package (20), accommodated in a correspondingly-shaped aperture in the soft substrate (210), the dielectric comprising insulating tape (212). A prismatic ferrite circulator housed in a correspondingly-shaped aperture in the substrate may be employed.

Improvements in or relating to antenna systems and mounting means therefor

... 745,269. Radar; aerials. RAYTHEON MANUFACTURING CO. Sept. 25, 1953, No. 26515/53. Classes 40 (5) and 40 (7). An aerial construction suitable for use in a radar having separate transmitting and receiving units comprises an electrical ground plane 10 having two spaced apart apertures therein which form the mouths of two electromagnetic horns 11 and 12, the distance between the apertures being such with respect to the wavelength of operation that the aerials are isolated to a high degree from one another. The horns may be substantially matched to free space and excited in TE 01 mode with the electrostatic lines perpendicular to the line intersecting the axes of the horns. As shown, horn 12 is the transmitting horn and is excited by offset probe 13 surrounded by a sheath of dielectric 15. The probe is fed by coaxial line from magnetron oscillator 19 resiliently mounted between the horns. Horn 11 is used for reception and contains a pair of crystal rectifiers 33 forming a balanced mixer from ...

Reconfigurable radar transmitter

Techniques that facilitate reconfigurable transmission of a radar frequency signal are provided. In one example, a system includes a signal generator and a power modulator. The signal generator provides a radar waveform signal from a set of radar waveform signals. The power modulator divides a local oscillator signal associated with a first frequency and a first amplitude into a first local oscillator signal and a second local oscillator signal. The power modulator also generates a radio frequency signal associated with a second frequency and a second amplitude based on the radar waveform signal, the first local oscillator signal and the second local oscillator signal.

Miniature Electronic personal locator beacon

Radar

A radar receiver having an antenna. The antenna has an array of antenna elements. The receiver also includes a number of processing stages including a first processing stage adapted to process radar signals received via each antenna element of the array and a second processing stage adapted to serve the first processing stage. The processing stages are each arranged substantially parallel to one another, and to the antenna substrate.

Receiver protection device

RADAR APPARATUS

Transmission cells for ultra high frequency devices and systems

... 654,668. Radio signalling. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 12, 1947, No. 25059. Convention date, June 30, 1945. [Class 40 (v)] [Also in Group XL (b)] A receiver 6 is connected to a wave-guide 4, with an aerial horn at one end and a transmitter 1 at the other, through a guide 30 including a gas-filled cell 11 for preventing unwanted oscillations from reaching the receiver. A stub guide 37 as described in Specification 597,662 is provided to prevent the weak reception signals from being dissipated in the transmitter 1. An ordinary gas switch 31 is also provided in guide 30. Specification 582,328 also is referred to.

Housing for a radiation transmitter and receiver

Improvements in or relating to transceivers

... 812,082. Combined transmitting and receiving systems. TOKYO SHIBAURA ELECTRIC CO. Ltd. Sept. 14, 1955, No. 26253/55. Class 40 (5). [Also in Group XL (b)] A travelling wave tube is included in the receiver arm 25 of a radar or like transmitterreceiver having a common duplexer (wave guide 18) and antenna so that received signals are amplified by the tube but transmitted pulses, by overloading it, are attenuated. Moreover, received signals are rotated through 45 degrees by a 45 degree twist coupler 21 transforming the waveguide from rectangular to circular and further rotated through 45 degrees by a Faraday rotator 24 so that, being parallel to a conductor plane 26 in the waveguide, they are reflected back to and are accepted by the receiver arm 25, but transmitted signals, being not affected by the plane 26, are substantially rejected by the branch arm 25. The rotations due to the rotator 24 and twist coupler 21 on the transmitter signal, however, both cancel out. An inclined conducting plane ...

RADAR SYSTEMS

Dual beam monopulse antenna system

Reflectors collapsible radar.

Simultaneous dual polarization radar system.

Simultaneous dual polarization radar system.

REAL TIME DELAY SYSTEMS WITH ARRAY ANTENNA TO THE SPATIALLY CHANGEABLE ONE RADIATION CHARACTERISTIC FOR ULTRABREITBANDIGE PULSES OF HIGHEST ACHIEVEMENT

TRANSMISSION RECEIPT SWITCH WITH HIGH SPEED PROTECTION

RADAR SYSTEM WITH HIGH SPACER DISSOLUTION

PAD FOR THE ANTENNA RESONANT CIRCUIT OF A RADIO OF TRANSCEIVER.

RADAR TRANSMITTER/CRECEIVER

PROCEDURE AND ARRANGEMENT F R MULTI-STATIC NACHDISTANZRADARM EATING

ELECTRONIC LIFE DETECTION SYSTEM

RADIO FREQUENCY INTERFACE DEVICE FOR TRANSPONDERS

TWO-CANAL MICROWAVES TRANSMISSION/CRECEIPT MODULE FOR ACTIVE APPARTUREN A RADAR SYSTEM

OBSTACLE SENSOR WITH COLLIMATION AND FOCUSING OF THE EMITTED WAVES

Arrangement for simultaneous sending and receiving as well as for mixing the transmission and receipt waves

RADAR DEVICE

Technique for compensation of transmit leakage in radar receiver

ANTENNA CONFIGURATIONS FOR REDUCED RADAR COMPLEXITY

FORWARD-LOOKING RADAR SYSTEM

RADAR

HIGH RANGE RESOLUTION RADAR SYSTEM

MULTI-BEAM ANTENNA

METHODS AND APPARATUS FOR RADAR SIGNAL RECEPTION

TRANSMIT RECEIVE SWITCH WITH HIGH POWER PROTECTION

Radar system

A radar system (1) comprising: a transmitting antenna comprising a plurality of linear arrays (tl-t4) of transmitting antenna elements (20) arranged on a generatrix of a truncated cone or on a cylindrical surface; a signal generator block (2) operatively connected to the transmitting antenna and adapted to feed the transmitting antenna; a receiving antenna comprising a plurality of groups (g1-g4) of linear arrays (r11-r1n,..., r41-r4n) of receiving antenna elements (10) arranged on the generatrix of the truncated cone or on the cylindrical surface, in which each group (gl-g4) of linear arrays of receiving antenna elements is circumferentially interposed between a first and a second linear array of transmitting antenna elements; a signal processor (drx, 4) operatively connected to the receiving antenna. The signal generator block (DRX, 4) is adapted and configured to feed the transmitting antenna so that the first and the second linear arrays of transmitting antenna elements emit a first ...

HIGH POWER LOW LOSS NONRESONANT FILTER SYSTEM

Monopulse array system with air-stripline multi-port network

Magnetic beam deflection devices

RECIPROCAL HYBRID MODE RF CIRCUIT FOR COUPLING RF TRANSCEIVER TO AN RF RADIATOR

SUB-SURFACE RADAR IMAGING

Radar imaging apparatus comprises a single transmit antenna (4) and at least one receive antenna (5), scanning means (e.g. a pantograph) for mechanically scanning the antennas over a surface of interest (16), position providing means (e.g. a computer driving the pantograph via an X-Y drive and a stepper motor) providing a position signal indicative of the instantaneous position of the transceiver, control means for operating the transmit antenna in a stepped frequency continuous wave mode, signal analysing means for analysing amplitude and phase components (27, 28) of the receive antenna signal, and signal combining means for combining the output of said signal analysing means with said position signal as in a synthetic aperture array to provide a radar image signal of the surface and underlying features. The scan is two-dimensional (random or boustrophedral).

DEVICE FOR MOUNTING A RADAR PROBE FOR SHAFT FURNACES

HERMETICALLY SEALED HIGH FREQUENCY FRONT END

The invention relates to a hermetically sealed RF front end (for example a transmitting/receiving module) of a multilayered structure comprising electronic components (3, 4), wherein the multilayered structure contains a number of substrates (1, 2) which are stacked one above the other and carry the components (3, 4), wherein grooves (7) are formed in the substrates (1, 2), and between the substrates (1, 2) there are sealing elements (5, 8), which engage in the grooves (7), and the substrates (1, 2) are soldered to one another.

Приемопередающее устройство активной радиолокационной системы с непрерывным излучением

Полезная модель относится к радиотехнике и может быть использована при разработке активных радиолокационных систем.Сущность полезной модели состоит в том, что в известное устройство, содержащее блок формирования сигнала, делитель мощности, первый усилитель, передающую антенну, приемную антенну, сумматор, смеситель, второй усилитель, вход которого соединен с выходом смесителя, фильтр нижних частот, дополнительно вводятся второй выход блока формирования сигнала, первый перестраиваемый аттенюатор, третий усилитель, перестраиваемая линия задержки, второй перестраиваемый аттенюатор, блок обработки сигнала. Предлагаемое устройство можно условно разделить по следующим функциональным назначениям: передающий канал, приемный канал, тракт компенсации.Назначение устройства - передача радиолокационного сигнала, прием сигнала отраженного от радиолокационной цели, компенсация прямого сигнала собственного передатчика в приемном канале.Технический результат, на достижение которого направлено предлагаемое решение, - повышение уровня компенсации сигнала собственного передатчика, поступающего в приемный канал радиолокационной системы, заключается в применении перестраиваемой линии задержки, которая позволяет точнее синхронизировать прямые сигналы передатчика подсвета, принимаемые первой и второй приемными антеннами. Кроме этого, замена перестраиваемого фазовращателя симметрирующим трансформатором позволяет повысить уровень компенсации при работе пассивной РЛС по широкополосному сигналу подсвета. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 179 353 U1 (51) МПК G01S 13/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК G01S 13/02 (2006.01); G01S 7/36 (2006.01); G01S 13/882 (2006.01); G01S 7/038 (2006.01) (21)(22) Заявка: 2017137156, 23.10.2017 (24) Дата начала отсчета срока действия патента: Дата регистрации: Приоритет(ы): (22) Дата подачи заявки: 23.10.2017 (45) Опубликовано: 11.05.2018 Бюл. № 14 1 7 9 3 5 3 R U (56) Список ...

Блок фазовращателей

Полезная модель относится к технике СВЧ и используется при построении фазированных антенных решеток. Блок фазовращателей содержит основание (1) с ребрами (2), расположенными по его обеим сторонам, и первую и вторую панели (3) и (4), в каждой из которых выполнены ступенчатые окна (7), (8). Фазовращатели (5) установлены волноводной частью между ребрами (2) с двух сторон основания (1). Фланцы (9) фазовращателей (5) установлены в ступенчатые окна (7), (8), панелей (3), (4), в которых расположены контактные пластины (6). Панели (3), (4) установлены по обеим сторонам фазовращателей (5) и соединены между собой основанием (1) и стойками (10). Достигаемым техническим результатом предлагаемой полезной модели является повышение надежности и прочности блока фазовращателей с плотной компоновкой в коротковолновом диапазоне волн. 3 з.п., 3 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 209 395 U1 (51) МПК H01Q 21/00 (2006.01) H01P 1/18 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК H01P 1/18 (2021.08); H01Q 21/00 (2021.08); G01S 7/03 (2021.08) (21)(22) Заявка: 2021133538, 17.11.2021 (24) Дата начала отсчета срока действия патента: Дата регистрации: 16.03.2022 (45) Опубликовано: 16.03.2022 Бюл. № 8 2 0 9 3 9 5 R U (54) Блок фазовращателей (57) Реферат: Полезная модель относится к технике СВЧ и используется при построении фазированных антенных решеток. Блок фазовращателей содержит основание (1) с ребрами (2), расположенными по его обеим сторонам, и первую и вторую панели (3) и (4), в каждой из которых выполнены ступенчатые окна (7), (8). Фазовращатели (5) установлены волноводной частью между ребрами (2) с двух сторон основания (1). Фланцы (9) фазовращателей (5) Стр.: 1 (56) Список документов, цитированных в отчете о поиске: SU 1773212 A1, 20.07.1995. RU 2379802 C1, 20.01.2010. RU 2338307 C1, 10.11.2008. US 5940031 A1, 17.08.1999. U 1 U 1 Адрес для переписки: 140180, Московская обл., г. Жуковский, Гагарина, 3, Акционерное ...

Method and radar apparatus for detecting target object

Disclosed is a method and a radar apparatus for transmitting a transmission signal at a controlled timing in order to avoid signal interference, thereby exactly detecting a target object without misrecognition.

RF Circuit with Improved Antenna Matching

In one embodiment, RF front-end circuit includes a tunable matching network having an input coupled to an RF interface port, a directional coupler with a first connection coupled to an RF input of a mixer, a second connection coupled to an RF signal generation port, and a third connection coupled to an output of the tunable matching network. The directional coupler is configured to direct a signal from the RF signal generation port to the tunable matching network and to direct a signal from the tunable matching network port to the RF port of the mixer. The RF front-end circuit also has a tunable matching network control unit coupled to the tunable matching network. The control unit is configured to optimize an impedance match between the RF interface port and the output of the tunable matching network.

Radar

A radar receiver having an antenna. The antenna has an array of antenna elements. The receiver also includes a number of processing stages including a first processing stage adapted to process radar signals received via each antenna element of the array and a second processing stage adapted to serve the first processing stage. The processing stages are each arranged substantially parallel to one another, and to the antenna substrate.

In-vehicle pulse radar

There is provided an in-vehicle pulse radar that permits to detect information on an object accurately by temporally separating a noise signal mixed into a receiving signal by applying a delay time with a simple configuration. A baseband signal down-converted by a frequency converter ( 152 ) is output to a signal processing section ( 102 ) through a board-to-board connector ( 103 ) after passing through a delay circuit ( 153 ). Still further, a control signal is output to a switching circuit ( 151 ) from a control signal generating section ( 162 ) through the board-to-board connector ( 103 ). The delay circuit ( 153 ) increases a time lag from when the control signal passes through the board-to-board connector ( 103 ) until when the baseband signal passes through the board-to-board connector ( 103 ) by applying a predetermined delay time to the baseband signal. Thereby, the baseband signal receives no interference from the control signal.

Radar sensor and method for controlling same to reduce the crosstalk of digital signals to the hf radar signal

The radar sensor has a transceiver device for generating a radar signal having a settable output power, a control unit and an interface unit. The transceiver device may be controlled via a digital interface via the interface unit and the control unit. One of the lines of the interface is connected to the control unit, the control unit being designed in such a way that when a predetermined level is present on this line, the output power of the transceiver device is lowered.

WAVEGUIDE ANTENNA FOR A RADAR ANTENNA ARRAY

A waveguide antenna for a radar antenna array, particularly for use in motor vehicles, includes a metal waveguide extending in an x direction and having a longitudinal axis, which, for the propagation of a radar wave of a first mode in the x direction, delimits an inner space, wherein in order to specifically convert the first mode to a second mode of the radar wave which is different from the first mode and to couple the second mode out of the waveguide, a plurality of structural elements arranged in the x direction are provided which extend into the inner space and wherein adjacent structural elements have a distance which is larger than half a waveguide wavelength of the radar wave of the first mode or larger than half a free-space wavelength, depending on which of the two wavelengths is smaller. 116.-. (canceled)17. A waveguide antenna for a radar antenna array , particularly for use in motor vehicles , including a metal waveguide extending in an x direction and having a longitudinal axis , which , for the propagation of a radar wave of a first mode in the x direction delimits an inner space ,a. wherein in order to specifically convert the first mode to a second mode of the radar wave which is different from the first mode and to couple the second mode out of the waveguide, a plurality of structural elements arranged in the x direction are provided which extend into the inner space,{'sub': 1', '0', '1', '0, 'b. wherein adjacent structural elements have a distance which is larger than half a waveguide wavelength (λ/2) of the radar wave of the first mode or larger than half a free-space wavelength (λ/2), depending on which of the two wavelengths (λ, λ) is smaller.'}18. A waveguide antenna according to claim 17 , wherein the structural elements each extend along a transverse axis which includes an acute angle with the longitudinal axis.19. A waveguide antenna according to claim 18 , wherein the structural elements have a constant structural height along the ...

RADAR SENSOR FOR MOTOR VEHICLES

A radar sensor for motor vehicles includes: a transmit and receive component, which includes a mixer for mixing a transmitted signal with a received signal; an evaluation circuit which is connected to an output of the mixer by a direct voltage coupling device; and a compensation device for compensating a DC offset in the output signal of the mixer, the compensation device being subdivided into a rough compensation device in the transmit and receive component, and a fine compensation device in the evaluation circuit. 15-. (canceled)6. A radar sensor for motor vehicles , comprising:a transmit-and-receive component including a mixer for mixing a transmitted signal with a received signal;an evaluation circuit connected to an output of the mixer by a direct voltage coupling device; anda compensation system for compensating a DC offset in the output signal of the mixer, wherein the compensation system includes a rough compensation device in the transmit-and-receive component and a fine compensation device in the evaluation circuit.7. The radar sensor as recited in claim 6 , wherein the transmit-and-receive component is a monolithic microwave integrated circuit.8. The radar sensor as recited in claim 6 , wherein the rough compensation device has at least one current source which feeds a compensation current into a load resistor of the mixer.9. The radar sensor as recited in claim 8 , wherein the mixer is a Gilbert cell mixer.10. The radar sensor as recited in claim 8 , wherein the current source of the rough compensation device is programmable for the output of a constant current. 1. Field of the InventionThe present invention relates to a radar sensor for motor vehicles, having a transmit and receive component which includes a mixer for mixing a transmitted signal with a received signal; it also has an evaluation circuit which is connected to an output of the mixer by a direct voltage coupling device, as well as a compensation device for compensating a DC offset in the ...

RADOME FOR RADAR SENSOR IN A MOTOR VEHICLE, AND CORRESPONDING RADAR SENSOR

A radome for a radar sensor in a motor vehicle. The radome includes a first region, which is permeable to at least one specific type of electromagnetic waves, in particular radar waves, and a second region, which includes a shield, so that the second region is impermeable to the specific type of electromagnetic waves. Also, a radar sensor is described. 110-. (canceled)11. A radome for a radar sensor in a motor vehicle , comprising:a first region which is permeable to at least one specific type of electromagnetic waves; anda second region which includes a shield so that the second region is impermeable to the specific type of electromagnetic waves.12. The radome as recited in claim 11 , wherein the electromagnetic waves include radar waves.13. The radome as recited in claim 11 , wherein the first region and the second region are situated directly next to each other.14. The radome as recited in claim 11 , wherein the shield has cutouts for feedthrough of circuit tracks.15. The radome as recited in claim 11 , wherein at least one of: i) the shield has a separating wall claim 11 , and ii) the shield has a thickness according to a desired suppression of the particular type of electromagnetic waves.16. The radome as recited in claim 11 , wherein the shield includes a heater.17. A radar sensor in a motor vehicle claim 11 , comprising:a first region which is permeable to at least one specific type of electromagnetic waves;a second region which includes a shield so that the second region is impermeable to the specific type of electromagnetic waves; anda radome, having at least one of: i) an arrangement to generate electromagnetic waves, the arrangement being disposed in an area of the second region of the radome, and ii) an arrangement to radiate electromagnetic waves, disposed in an area of the first region of the radome.18. The radar sensor as recited in claim 17 , wherein the generating arrangement and the radiating arrangement are situated on a shared side of a surface ...

RADAR APPARATUS AND ANTENNA APPARATUS

The present invention relates to radar and antenna technologies. More particularly, the present invention relates to an antenna apparatus and radar apparatus that have an antenna structure that enables a high antenna gain and a balanced beam pattern by preventing a distortion of a beam pattern caused by a coupling phenomenon between antenna arrays. 1. A radar apparatus comprising:a long-distance transmission antenna unit comprising a plurality of long-distance transmission array antennas;a short-distance transmission antenna unit comprising one or more short-distance transmission array antennas;a reception antenna unit comprising a plurality of reception array antennas;a signal transmission/reception unit configured to transmit a signal through the long-distance transmission antenna unit and/or the short-distance transmission antenna unit, and to receive the transmitted signal through the reception antenna unit when the transmitted signal is reflected from the surroundings; anda dummy array antenna arranged in each of the opposite sides of the plurality of long-distance transmission array antennas, each of the opposite sides of the one or more short-distance transmission array antennas, and/or each of the opposite sides of the plurality of reception array antennas, wherein the dummy array antenna is not connected with the signal transmission/reception unit.2. The radar apparatus of claim 1 , wherein the long-distance transmission antenna unit claim 1 , the short-distance transmission antenna unit claim 1 , the reception antenna unit claim 1 , and the signal transmission/reception unit are mounted on one side of a printed circuit board.3. The radar apparatus of claim 2 , wherein the length of a first region where the long-distance transmission antenna unit is mounted is longer than a second region where the short-distance transmission antenna unit is mounted claim 2 , a third region where the reception antenna unit is mounted claim 2 , and a fourth region where the ...

WIDEBAND TRANSMITTER/RECEIVER ARRANGEMENT FOR MULTIFUNCTIONAL RADAR AND COMMUNICATION

A transmitter/receiver arrangement comprises a digital arbitrary waveform generator AWG connected to a transmitter. Said waveform generator is configured to generate an arbitrary waveform within a given bandwidth. Said transmitter/receiver arrangement further comprises an antenna arrangement configured to emit a transmitter signal, and to receive an incident signal, a receiver configured to receive a receiver signal, and an analogue isolator connected to said antenna arrangement, said transmitter, and said receiver. Said analogue isolator is adapted to route said transmitter signal from said transmitter to said antenna arrangement, and said incident signal from said antenna arrangement to said receiver, and to isolate said transmitter signal from said receiver signal. Said receiver is adapted to cancel any residual transmitter signal in said receiver signal by means of at least one digital model of at least said isolator, said antenna arrangement, and said transmitter. 1. A wideband transmitter/receiver arrangement for transmitting and receiving electromagnetic waves comprising:a digital arbitrary waveform generator AWG connected to a transmitter, wherein said waveform generator is configured to generate an arbitrary waveform within a given bandwidth,an antenna arrangement configured to emit a transmitter signal, and to receive an incident signal,a receiver configured to receive a receiver signal,an analogue isolator connected to said antenna arrangement, said transmitter, and said receiver, wherein said analogue isolator is adapted to route said transmitter signal from said transmitter to said antenna arrangement, and said incident signal from said antenna arrangement to said receiver, and to isolate said transmitter signal from said receiver signal,wherein said receiver is adapted to cancel any residual transmitter signal in said receiver signal by means of at least one digital model of at least said isolator, said antenna arrangement, and said transmitter.2. The ...

PHASED-ARRAY RECEIVER, RADAR SYSTEM AND VEHICLE

A phased-array receiver comprises a plurality of analog beamforming receive channels, each comprising an antenna element arranged to receive a radio frequency signal and a channel output arranged to provide an analog channel output signal. At least one of the plurality of analog beamforming receive channels comprises an in-phase downconversion mixing circuit connected to the antenna element and a local oscillator source and arranged to provide a downconverted in-phase signal to a phase rotation circuit, and a quadrature downconversion mixing circuit connected to the antenna element and the local oscillator source and arranged to provide a downconverted quadrature signal to the phase rotation circuit. The phase rotation circuit is arranged to provide to the channel output a phase-shifted analog output signal generated from the downconverted in-phase signal and the downconverted quadrature signal. 1. A phased-array receiver , comprising: an in-phase downconversion mixing circuit connected to said antenna element and a local oscillator source and arranged to provide a downconverted in-phase signal to a phase rotation circuit; and', 'a quadrature downconversion mixing circuit connectable to said antenna element and said local oscillator source and arranged to provide a downconverted quadrature signal to said phase rotation circuit; said phase rotation circuit being arranged to provide to said channel output a phase-shifted analog output signal generated from said downconverted in-phase signal and said downconverted quadrature signal., 'a plurality of analog beamforming receive channels, each connectable to an antenna element arranged to receive a radio frequency signal and a channel output arranged to provide an analog channel output signal, wherein at least one of said plurality of analog beamforming receive channels comprises2. The phased-array receiver as claimed in claim 1 , wherein at least one of said plurality of analog beamforming receive channels comprises a ...

RADAR RECEIVER, AND RADAR DEVICE EQUIPPED WITH SAME

There is provided a radar receiver that effectively prevents local oscillator signals from leaking out from an antenna. A receiver includes a local oscillator a mixer a buffer amplifier and a mode switcher The local oscillator outputs a local oscillation signal LO. The mixer mixes a high-frequency signal RF received by a radar antenna with the local oscillation signal LO. The buffer amplifier is disposed between the local oscillator and the mixer The mode switcher switches at least between a standby mode in which power is supplied to the local oscillator and no power is supplied to the buffer amplifier and a reception mode in which power is supplied to both the local oscillator and the buffer amplifier 1. A radar receiver comprising:a local oscillator configured to output a local oscillation signal;a mixer configured to mix a high-frequency signal received by an antenna with the local oscillation signal;a buffer amplifier disposed between the local oscillator and the mixer; anda mode switcher configured to switch at least between a standby mode in which power is supplied to the local oscillator and no power is supplied to the buffer amplifier and a reception mode in which power is supplied to both the local oscillator and the buffer amplifier.2. The radar receiver according to claim 1 , further comprisinga low noise amplifier configured to amplify the high-frequency signal received by the antenna, and configured to output the result to the mixer,the mode switcher being further configured to supply power to the low noise amplifier in both the standby mode and the reception mode.3. The radar receiver according to claim 1 , whereinthe mode switcher is further configured to acquire a trigger signal outputted when an operation is performed to start transmission by a radar transmitter, and to switch from the standby mode to the reception mode when the trigger signal has been acquired.4. The radar receiver according to claim 1 , further comprisinga reception detector ...

Wave dielectric transmission device, manufacturing method thereof, and in-millimeter wave dielectric transmission

A millimeter wave transmission device, the millimeter wave transmission device with (a) a first signal processing board for processing a millimeter wave signal; (b) a second signal processing board signal-coupled to the first signal processing board to receive the millimeter wave signal and perform signal processing with respect to the millimeter wave signal; and (c) a member provided between the first signal processing board and the second signal processing board and having a predetermined relative dielectric constant and a predetermined dielectric dissipation factor. The member constitutes a dielectric transmission path via which the millimeter wave signal is transmitted between the first signal processing board and the signal processing board.

Antenna apparatus and radar apparatus for improving radiation efficiency

Disclosed is an antenna apparatus for improving radiation efficiency, which can radiate signals not having a radiation pattern where maximum radiation energy is emitted from the front side, but having a radiation pattern where maximum radiation energy is emitted from opposite lateral sides of the front side.

Radome for a radar sensor assembly

A radome for a radar sensor that includes a first and second section. Each section is formed of layers that have an electrical thickness substantially equal to an integer multiple of a guided half-wavelengths of the radar beam. Each of the sections are configured such that, at a location spaced apart from the radome, a first phase angle of the first portion of the radar beam differs from a second phase angle of the second portion of the radar beam by an amount substantially corresponding to an integer number of three hundred sixty degrees (360°) of phase angle shift.

Vehicle Radar System for Detecting the Surroundings

The invention relates to a vehicle radar system () for detecting the surroundings, which radar system has a circuit board (), with a substrate layer () comprising an upper face () and a lower face (), with a strip conductor () which is applied onto said upper face () and surrounds a shielding region (), along which a shielding housing () that covers said shielding region () is connected to this strip conductor () in an electrically conductive manner, and with at least one wave guide () arranged in said substrate layer (), which wave guide () has a laterally delimiting wave guide wall () as well as an upper and a lower wave guide surface (), wherein said upper wave guide surface () is a section of said strip conductor (). 1241414142214206202228142828282822abaca,ba. A vehicle radar system () for detecting the surroundings , which radar system has a circuit board () , with a substrate layer () comprising an upper face () and a lower face () , with a strip conductor () which is applied onto said upper face () and surrounds a shielding region () , along which a shielding housing () that covers said shielding region () is connected to this strip conductor () in an electrically conductive manner , and with at least one wave guide () arranged in said substrate layer () , which wave guide has a laterally delimiting wave guide wall () as well as an upper and a lower wave guide surface () , wherein said upper wave guide surface () is a section of said strip conductor ().2228. The radar system () according to claim 1 , characterized in that said wave guide () has a length (L) and a width (B) claim 1 , and said length (L) is greater than said width (B).322840c. The radar system () according to characterized in that said wave guide wall () is formed from a conductive material ().4240282826ab. The radar system () according to claim 3 , characterized in that said conductive material () connects said upper wave guide surface () and said lower wave guide surface () in an electrically ...

Target Detection Device For Avoiding Collision Between Vehicle And Target Captured By Sensor Mounted To The Vehicle

The target detecting device comprises a radar sensor, an imaging sensor, and an ECU. The target detected by the radar sensor is selected under certain conditions, for example, i) a reception intensity of the reflected radar waves is equal to or more than a predetermined value, or ii) the target is moving, to be outputted externally. When a stopped vehicle is detected on a road by the sensor, and a target, for example a pedestrian, present behind the stopped vehicle is detected from the image acquired by the imaging sensor by performing image recognition using predetermined patterns of a target, the ECU makes the selection condition less restrictive than the selection condition for targets other than the target present behind the stopped vehicle, or unconditionally selects the target present behind the stopped vehicle.

METHOD FOR CONSTRUCTING VEHICULAR RADAR SENSOR WITH COPPER PCB

A method for constructing a vehicular radar sensor includes providing antenna structure and a printed circuit board having a first layer and a second layer with a copper layer disposed between the first and second layers. The antenna structure includes transmitting antennas that are operable to transmit radio signals, and receiving antennas that receive radio signals transmitted by the transmitting antennas and reflected from an object. The first layer is joined to a first side of the copper layer and the second layer is joined to a second side of the copper layer, with the copper layer spanning between and contacting opposed surfaces of the first and second layers. At least one waveguide is established through the copper layer. Electronic circuitry is disposed at the first layer of the printed circuit board and at least part of the antenna structure is disposed at the second layer of the printed circuit board. 1. A method for constructing a vehicular radar sensor , the method comprising:providing antenna structure comprising (i) a plurality of transmitting antennas that are operable to transmit radio signals, and (ii) a plurality of receiving antennas that receive radio signals transmitted by the plurality of transmitting antennas and reflected from an object;providing a printed circuit board comprising a first layer and a second layer with a copper layer disposed between the first and second layers, wherein the first layer is joined to a first side of the copper layer and the second layer is joined to a second side of the copper layer, with the copper layer spanning between and contacting opposed surfaces of the first and second layers;establishing at least one waveguide through the copper layer; anddisposing electronic circuitry at the first layer of the printed circuit board and disposing at least part of the antenna structure at the second layer of the printed circuit board.2. The method of claim 1 , wherein disposing at least part of the antenna structure at ...

High frequency device

An area and a size of a high frequency device are reduced. The high frequency device includes a first board (1) that has a first surface (1a) on which a circuit unit is formed and a second surface (1b) on which a ground conductor is formed, a second board (2) that has a third surface (2a) on which an antenna is formed and a fourth surface (2b) on which a second ground conductor is formed, and a conductor plate (3), in which the conductor plate (3) is sandwiched between the second surface (1b) and the fourth surface (2b).

PATIENT SUPPORT SYSTEM CONTROL USING RADAR

A patient immersion sensor includes a radio detection and ranging (RADAR) apparatus to determine a time of flight (TOF) of a RADAR pulse and a reflected signal that is reflected by a patient or by a portion of a patient support surface supporting the patient. The TOF is indicative of an immersion depth or a distance toward bottoming out of a patient supported on the patient support surface, such as a mattress or a pad. The RADAR apparatus emits pulses of very short duration so as to be able to detect objects, such as a patient or a portion of a mattress or pad, at very close distances. The RADAR apparatus may use time-of-flight (TOF) between transmission of the pulse and receipt of a reflected signal to determine a distance toward bottoming out by the patient, thereby to determine if the patient is properly immersed into the patient support surface. Adjustments to inflation or deflation of one or more bladders are made to achieve a desired immersion amount within a tolerance range between upper and lower TOF thresholds. 1. A patient support system comprising:a patient support structure to support a patient;control circuitry coupled to the patient support structure; andat least one radio detection and ranging (RADAR) apparatus coupled to the patient support structure, the control circuitry providing power to the at least one RADAR apparatus and receiving data from the at least one RADAR apparatus, wherein the control circuitry performs at least one function in response to the data received from the at least one RADAR apparatus.2. The patient support system of claim 1 , wherein the patient support structure includes one or more air bladders and the at least one function comprises changing inflation of the one or more air bladders.3. The patient support system of claim 2 , wherein the at least one RADAR apparatus includes at least one RADAR antenna and wherein changing inflation of the one or more air bladder comprises deflating the one or more air bladders to lessen a ...

DEVICE FOR DETERMINING OR MONITORING THE FILLING LEVEL OF A FILLING MATERIAL STORED IN A CONTAINER

A device for determining or monitoring the filling level of a filling material stored in a container in a process, comprising a signal generating unit, a coupling/decoupling unit which couples the high-frequency measurement signals to an antenna unit or decouples said high-frequency measurement signals from the antenna unit. The antenna unit has a wave guide and an antenna element which widens in the direction of the filling material. The antenna unit emits high-frequency measurement signals in the direction of the surface and receives the echo signals reflected by the surface of the filling material. A control/evaluation unit determines the filling level of the filling material in the container from the transit time of the measurement signals. At least one process separation device is thereby provided in or on the antenna unit, which process separation device protects the coupling/decoupling unit from influences of the process, wherein a first process separation device is produced at least partially from a dielectric material with a specified porosity, and wherein the first process separation device is configured to be at least approximately transparent to the high-frequency measurement signals. 110-. (canceled)11. A device for determining or monitoring the fill level of a filing material stored in a container in a process , comprising:a control/evaluation unit;at least one process separation device;an antenna unit;a signal generating unit which generates high-frequency measurement signals; anda coupling/decoupling unit which couples said high-frequency measurement signals to said antenna unit or decouples said high-frequency measurement signals from said antenna unit, wherein:said antenna unit emits high-frequency measurement signals in the direction of the surface of the filling material and receives the echo signals reflected by the surface of the filling material;said control/evaluation unit determines the filing level of the filling material in the container ...

Antenna device and radar apparatus

An antenna device includes a transmitting antenna including a transmission channel, a transmitting antenna including a transmission channel, a transmitting antenna including a transmission channel, a transmitting antenna including a transmission channel, and a receiving antenna including reception channels. An interval between the transmitting antenna and the transmitting antenna is wider than an overall width of the receiving antenna. An interval between the transmitting antenna and the transmitting antenna is narrower than an interval between adjacent channels among the reception channels.

ASCERTAINMENT OF CALIBRATION DATA TO TAKE TEMPERATURE AND VOLTAGE DEPENDENCY OF THE HF RADAR SIGNAL PHASES IN A RADAR SYSTEM INTO CONSIDERATION

According to a first example implementation, the method comprises providing a local oscillator signal in a first radar chip based on a local oscillator signal generated in a further radar chip; supplying the local oscillator signal to a transmission channel of the first radar chip which, based on the local oscillator signal, generates an HF output signal; changing the temperature and/or supply voltage of the first radar chip; measuring phase values based on the local oscillator signal supplied to the transmission channel and of the corresponding HF output signal for different temperature values and/or for different supply voltage values of the first radar chip; and ascertaining calibration data based on the measured phase values for a phase calibration to compensate for changes in the phase of the HF output signal resulting from a change in the temperature and/or in the supply voltage. 1. A method comprising:providing a local oscillator signal in a first radar chip based on a local oscillator signal generated in a further radar chip;supplying the local oscillator signal to a transmission channel of the first radar chip which, based on the local oscillator signal, generates an HF output signal;changing one or more of a temperature or supply voltage of the first radar chip;measuring phase values based on the local oscillator signal supplied to the transmission channel and based on a corresponding HF output signal for one or more of different temperature values or for different supply voltage values of the first radar chip; andascertaining calibration data based on the measured phase values for a phase calibration to compensate for changes in a phase of the HF output signal resulting from a change in one or more of a temperature or a supply voltage.2. The method as claimed in claim 1 , wherein measuring the phase values comprises:diverting a portion of a power of the HF output signal using a coupler, andmeasuring the phase values based on the local oscillator signal ...

Radar Interference Mitigation

Various implementations described herein are directed to a method for mitigating radar interference. The method may include receiving time domain signals from a radar device and transforming the time domain signals to time-frequency domain signals. The method may include comparing each time-frequency domain signal with one or more surrounding time-frequency domain signals to determine which of the time-frequency domain signals have interference. The method may include repairing the time-frequency domain signals having interference. 1. A method , comprising:receiving time domain signals from a radar device;transforming the time domain signals to time-frequency domain signals;comparing each time-frequency domain signal with one or more surrounding time-frequency domain signals to determine which of the time-frequency domain signals have interference; andrepairing the time-frequency domain signals having interference.2. The method of claim 1 , wherein the radar device comprises a frequency-modulated continuous-wave (FMCW) radar.3. The method of claim 1 , wherein the radar device comprises a pulse compression radar.4. The method of claim 1 , wherein the time domain signals comprise radar related waveforms in time domain claim 1 , and wherein the time-frequency domain signals comprise radar related waveforms in time-frequency domain.5. The method of claim 1 , wherein transforming the time domain signals to time-frequency domain signals involves using a short-time Fourier transform to generate the time-frequency domain signals from the time domain signals.6. The method of claim 1 , further comprising storing the time-frequency domain signals for multiple sweeps of the radar device claim 1 , wherein each sweep comprises a rotation interval of the radar device over a period of time claim 1 , and wherein the multiple sweeps comprise an upper boundary of sweeps of less than or equal to a dwell count of the radar device.7. The method of claim 1 , wherein determining which of ...

RADAR SYSTEM INCLUDING AN ANTENNA ARRAY FOR TRANSMITTING AND RECEIVING ELECTROMAGNETIC RADIATION

A radar system includes an antenna array for sending and receiving electromagnetic radiation, the array including N transmitting antennas and M receiving antennas, objects being detectable within the detection area of the antennas according to the MIMO principle using the antennas. The transmitting antennas transmit signals that are orthogonal to one another during a transmission cycle. N-n of the transmitting antennas are situated horizontally next to one another and n of the transmitting antennas are situated in a horizontally offset manner at an identical offset from respective ones of the N-n transmitting antennas. M-m of the receiving antennas are situated horizontally next to one another and m of the receiving antennas are situated vertically offset from the M-m receiving antennas. 111-. (canceled)12. A radar system including an antenna array for sending and receiving electromagnetic radiation , the radar system comprising:N transmitting antennas;M receiving antennas; the radar system is configured to use the transmitting and receiving antennas to detect objects within a detection area of the transmitting and receiving antennas according to a Multiple Input Multiple Output (MIMO) principle;', 'the N transmitting antennas are configured to transmit signals that are orthogonal to one another during a transmission cycle;', 'N-n of the N transmitting antennas are situated horizontally next to one another;', 'n of the N transmitting antennas are situated at an identical horizontal offset from the N-n transmitting antennas;', 'M-m of the M receiving antennas are situated horizontally next to one another; and', 'm of the M receiving antennas are situated vertically offset from the M-m receiving antennas., 'wherein13. The radar system of claim 12 , wherein n=1.14. The radar system of claim 12 , wherein m=1.15. The radar system of claim 12 , wherein the m receiving antennas each has a different vertical offset from the M-m receiving antennas.16. The radar system of ...

RADAR RANGE AMBIGUITY RESOLUTION USING MULTI-RATE SAMPLING

A radar circuit for use with a vehicle or other host system includes a radio frequency (RF) signal generator, an RF antenna connected to the signal generator configured to transmit an RF waveform toward a radar target and receive a radar return signature reflected therefrom, and an analog-to-digital converter (ADC) in communication with the antenna and having a different sampling frequencies. The ADC may have multiple channels outputting sampled radar return signature data at the different sampling frequencies. An ECU is in communication with the ADC to receive the sampled radar return signature data from the ADC, generate a set of range hypotheses describing a possible range from the host system to the radar target, select a correct range hypothesis, and execute a control action using the correct range hypothesis. The correct range hypothesis corresponds to a true range to the radar target. 1. A radar circuit for use with a host system , the radar circuit comprising:a radio frequency (RF) signal generator configured to generate a predetermined RF waveform;an RF antenna connected to the RF signal generator, wherein the RF antenna is configured to transmit the RF waveform toward a radar target and receive a radar return signature from the radar target;an analog-to-digital converter (ADC) in communication with the RF antenna wherein the ADC has multiple sampling frequencies, such that the ADC is configured to output sampled radar return signature data at the multiple sampling frequencies; andan electronic control unit (ECU) in communication with the ADC, and configured to receive the sampled radar return signature data from the ADC, generate a set of range hypotheses describing a possible range from the host system to the radar target, select a correct range hypothesis from the set of range hypotheses as a true range to the radar target, and execute a control action with respect to the host system using the correct range hypothesis.2. The radar circuit of claim 1 , ...

Amplification phase correction in a pulse burst

An apparatus includes a circuit and a shifter. The circuit may be configured to generate a control signal based on a reference voltage and a plurality of characteristics of an amplifier. The shifter may be configured to (i) receive an input signal carrying a pulse burst having a plurality of pulses, (ii) shift a plurality of phases of the pulses in the pulse burst in response to the control signal, and (iii) present the pulses as shifted in an output signal.

Cover member having plurality of faces, and radar apparatus provided with the cover member

A radar apparatus includes transmitting means, receiving means, target detection means, and a cover member. The cover member is positioned opposite at least one of the transmitting means and the receiving means, such as to cover at least one of the transmitting means and the receiving means. The cover member is provided with a first face which is positioned opposite at least one of the transmitting means and the receiving means, and a second face which is on an opposite side from the first face and is not parallel to the first face.

Sub-carrier successive approximation millimeter wave radar for high-accuracy 3d imaging

A sub-carrier successive approximation (SCSA) radar having a sufficiently high accuracy to capture 3D images of concealed objects. The invention is phase-based, and directly measures round trip time by estimating the phase delay of the carrier. One of its advantages is that the carrier does not need to sweep across a wide frequency range, thereby relaxing RF front-end bandwidth and linearity requirements. SCSA radar accuracy is limited only by the extent of system noise, allowing very high accuracy to be achieved with a sufficient integration period. The SCSA radar can be readily implemented in CMOS, as well as other device technologies, and fabricated within one or more small integrated circuits.

MIMO RADAR SENSOR FOR MOTOR VEHICLES

A MIMO radar sensor for motor vehicles, having an antenna assemblage on a rectangular circuit board whose edges define a y direction and a z direction. The antenna assemblage includes at least two arrays of transmitting antennas and at least two arrays of receiving antennas. Transmitting antennas within each array are offset from one another in a z direction, and the two arrays of the transmitting antennas are offset from one another in a y direction. The receiving antennas within each array are offset from one another in a y direction, and the two arrays of the receiving antennas are offset from one another in a z direction. A high-frequency module is disposed in a central region of the circuit board between the arrays of the transmitting and receiving antennas. 15-. (canceled)6. A MIMO radar sensor for a motor vehicle , comprising:an antenna assemblage on a rectangular circuit board whose edges define a y direction and a z direction, the antenna assemblage including two arrays of transmitting antennas and two arrays of receiving antennas, transmitting antennas within each array of the two arrays of transmitting antennas being offset from one another in the z direction, and the two arrays of transmitting antennas are offset from one another in the y direction, and receiving antennas within each array of the two receiving antennas being offset from one another in the y direction, and the two arrays of receiving antennas are offset from one another in the z direction, wherein the two arrays of transmitting antennas are disposed adjacently to two mutually oppositely located edges of the circuit board, and the two arrays of receiving antennas are disposed adjacently to two remaining ones of the edges of the circuit board, and at least one high-frequency module is disposed on the circuit board in a central region of the circuit board between the arrays of transmitting antennas and the arrays of receiving antennas.7. The MIMO radar sensor as recited in claim 6 , wherein ...

RADAR IMAGING OF BOREHOLES

A method of estimating a characteristic of a formation includes: disposing a radar imaging tool in a borehole; generating a high frequency radar signal by a radar transmitter, the high frequency radar signal having a frequency configured to limit penetration of the radar signal to a near-borehole region of the formation, the near-borehole region including a surface of the borehole and a region of the borehole proximate to the surface; detecting return signals reflected from the near-borehole region; generating an image of the near-borehole region based on the return signals; and estimating a characteristic of the formation based on the image.

FREQUENCY SELECTIVE SURFACE, WIRELESS COMMUNICATION DEVICE, AND RADAR DEVICE

Provided is a frequency selective surface including a conductor plane (), nine loop slots () each formed to be surrounded by the conductor plane (), and a capacitance component () disposed to straddle the loop slots () in a width direction, both ends of the capacitance component being connected to the conductor plane () at a position near the loop slots (). The conductor plane () and the loop slots () each formed to be surrounded by the conductor plane () constitute a unit cell (). The unit cells () are two-dimensionally periodically arranged. One or more (four in the case of FIG. ) capacitance components () disposed to straddle the loop slots () in the width direction are provided for each loop slot (). Operating frequencies can be easily changed by adjusting only a component connected to the unit cell, or a part of metallic patterns. 1. A frequency selective surface comprising:a conductor plane;one or more slots each formed to be surrounded by the conductor plane; anda capacitance element disposed to straddle the slot in a width direction, one end or both ends of the capacitance element being connected to the conductor plane at a position near the slot,wherein one or more capacitance elements are provided for each slot, the one or more capacitance elements being disposed to straddle the slot in the width direction.2. The frequency selective surface according to claim 1 , wherein the capacitance element is a capacitance component claim 1 , one end of the capacitance component being connected to the conductor plane at a position near one edge of the slot claim 1 , another end of the capacitance component being connected to the conductor plane at a position near another edge of the slot.3. The frequency selective surface according to claim 1 , whereinthe capacitance element is a stub conductor, andone end of the stub conductor is connected to the conductor plane at a position near one edge of the slot, and another end of the stub conductor is an open end disposed to ...

Power Controllable Wireless Communication Device

A power controllable wireless communication device includes a variable gain amplifier having a gain that can be controlled based on a gain control signal, a reference power generation circuit, which generates first reference power and second reference power differing from the first reference power, a sensor circuit supplied with selectively power of a high frequency signal output from the variable gain amplifier, and the first reference power and the second reference power generated by the reference power generation circuit, and a control circuit which generates the gain control signal based on a sensor output from the sensor circuit. When controlling power, the control circuit generates the gain control signal based on ratios among a first sensor output corresponding to the first reference power, a second sensor output corresponding to the second reference power, and a high frequency sensor output corresponding to the power of the high frequency signal. 1. A power controllable wireless communication device comprising:a variable gain amplifier having a gain that can be controlled based on a gain control signal;a reference power generation circuit configured to generate first reference power and second reference power differing from the first reference power;a sensor circuit supplied with selectively power of a high frequency signal output from the variable gain amplifier, and the first reference power and the second reference power generated by the reference power generation circuit; anda control circuit configured to generate the gain control signal based on a sensor output from the sensor circuit,wherein when controlling power, the control circuit generates the gain control signal based on ratios among a first sensor output corresponding to the first reference power, and a second sensor output corresponding to the second reference power, which are output from the sensor circuit, and a high frequency sensor output corresponding to the power of the high frequency ...

Phase Compensated Multi-Layer, Multi-Steering Antenna Array For Millimeter Wave Applications

Examples disclosed herein relate to a multi-layer, multi-steering (“MLMS”) antenna array for millimeter wavelength applications. The antenna array is part of an antenna in package. 1. An antenna in package , comprising:an antenna element layer comprising a plurality of radiating elements;an antenna controller layer comprising a phase network adapted to control phases of the plurality of radiating elements; anda substrate layer coupled between the antenna element layer and the antenna controller layer.2. The antenna in package as in claim 1 , wherein the antenna element layer further comprises a power distribution network coupled to the phase network.3. The antenna in package as in claim 2 , wherein the plurality of radiating elements comprise a plurality of slot elements.4. The antenna in package as in claim 1 , wherein the antenna element layer comprises a transmit portion of the plurality of radiating elements and a receive portion of the plurality of radiating elements.5. The antenna in package as in claim 4 , wherein the antenna in package is adapted for radar operation.6. A radar system claim 4 , comprising:an antenna element layer comprising a receive antenna array and a transmit antenna array;an antenna controller layer comprising an analog phase network adapted to control phases of the plurality of radiating elements;a transceiver module coupled to the antenna element layer; anda perception module coupled to the receive antenna array and adapted to classify detected objects.7. The radar system as in claim 6 , wherein the antenna controller layer comprises a phase control network adapted to control the phase of the receive antenna array and the transmit antenna array.8. The radar system as in claim 7 , wherein the perception module is adapted to identify multiple dimensions of a received signal.9. The radar system as in claim 8 , further comprising a micro-doppler module adapted to extract micro-doppler signals from the received signal.10. The radar system as ...

Multi-field zone proximity sensor as well as a method for measuring a distance of an object from the multi-field zone proximity sensor

A multi-field zone proximity sensor () for measuring a distance (l) of an object () from the multi-field zone proximity sensor () is described, wherein the multi-field zone proximity sensor () has a housing () in which an antenna structure () is incorporated, which is arranged in or close to a side () of the housing (), wherein the antenna structure () is set up for emitting an electromagnetic transmission free space wave () and for receiving an electromagnetic reflection wave () reflected on the object (), wherein the multi-field zone proximity sensor () has sensor electronics () which are set up to determine the distance (l) of the object () from the multi-field zone proximity sensor () based on the received reflection wave (). 11022101012141912142024221016221024. Multi-field zone proximity sensor () for measuring a distance (l) of an object () from the multi-field zone proximity sensor () , wherein the multi-field zone proximity sensor () has a housing () in which an antenna structure () is incorporated which is arranged in or near a side () of the housing () , wherein the antenna structure () is set up for emitting an electromagnetic transmission free space wave () and for receiving an electromagnetic reflection wave () reflected on the object () , wherein the multi-field zone proximity sensor () has sensor electronics () which are set up to determine the distance (l) of the object () from the multi-field zone proximity sensor () based on the received reflection wave ().21019181418. Multi-field zone proximity sensor () according to claim 1 , wherein the side () has an opening () and wherein the antenna structure () is arranged in or near the opening ().31019. Multi-field zone proximity sensor () according to claim 1 , wherein at least the side () is formed of a material which is transparent for electromagnetic waves.4101214401212. Multi-field zone proximity sensor () according to claim 1 , wherein the housing () is formed cylindrically and the antenna structure ...

HIGH-FREQUENCY TRANSMISSION LINE, RADAR APPARATUS PROVIDED WITH HIGH-FREQUENCY TRANSMISSION LINE, AND WIRELESS DEVICE

The high-frequency transmission line is configured by stacking conductor layers and an insulating layer, and is provided with: a signal via, which extends in a stacking direction and electrically connects the conductor layers together; an input line, which is arranged in one of the conductor layers and inputs an electrical signal to the signal via; a signal line, which is arranged in another one of the conductor layers and is connected to the input line through the signal via; a ground plane, which is arranged in any one of the conductor layers; a conductor arm arranged within a separation region that separates the signal via and the ground plane; and a conductor connection arranged within the separation region and connecting the conductor arm and the ground plane. The conductor arm and the conductor connection are configured to suppress an electrical signal of a predetermined frequency within an electrical signal. 115-. (canceled)16. A high-frequency transmission line configured to stack a plurality of conductor layers and an insulating layer , the high-frequency transmission line comprising:a signal via that extends in a direction where the conductor and insulating layers are stacked and electrically connects the conductor layers to one another;an input line that is provided in one of the conductor layers to input an electric signal to the signal via;a signal line provided in another one of the conductor layers and connected to the input line through the signal via;a ground plane that is provided in at least one of one of the conductor layers in which the input line is provided, another one of the conductor layers in which the signal line is provided, and a further one of the conductor layers provided between the one conductor layer and the another one conductor layer, is spaced apart from the signal via, and is connected to a reference potential;a conductor arm provided in a spacing region between the signal via and the ground plane; anda conductor connecter that ...

LOOPBACK TECHNIQUES FOR SYNCHRONIZATION OF OSCILLATOR SIGNAL IN RADAR

The disclosure provides a radar apparatus for estimating a position and a velocity of a plurality of obstacles. The radar apparatus includes a slave radar chip. A master radar chip is coupled to the slave radar chip. The master radar chip includes a local oscillator that generates a transmit signal. The slave radar chip receives the transmit signal on a first path and sends the transmit signal back to the master radar chip on a second path. A delay detect circuit is coupled to the local oscillator and receives the transmit signal from the slave radar chip on the second path and the transmit signal from the local oscillator. The delay detect circuit estimates a routing delay from the transmit signal received from the slave radar chip on the second path and from the transmit signal received from the local oscillator. 1. A radar apparatus comprising:a slave radar chip; a local oscillator configured to generate a transmit signal, wherein the slave radar chip is configured to receive the transmit signal on a first path and configured to send the transmit signal back to the master radar chip on a second path; and', 'a delay detect circuit coupled to the local oscillator and configured to receive the transmit signal from the slave radar chip on the second path and the transmit signal from the local oscillator, the delay detect circuit configured to estimate a routing delay from the transmit signal received from the slave radar chip on the second path and from the transmit signal received from the local oscillator., 'a master radar chip coupled to the slave radar chip, the master radar chip comprising2. The radar apparatus of claim 1 , wherein the master radar chip further comprises:a multiplexer coupled to the local oscillator and configured to receive the transmit signal from the local oscillator and configured to send the transmit signal to the slave radar chip on the first path; andone or more transceiver units coupled to the multiplexer, wherein the multiplexer is ...

Lower Power Consumption Radar

A radar system and a method for operating a radar system are provided. The radar system includes a first radar component, a second radar component, a processing unit, and a controller. At least one of the first radar component and the second radar component are configured to transmit at least one monitoring wave. At least one of the first radar component and the second radar component are configured to receive at least one reflected wave. Each of the first radar component and the second radar component have an active mode and a passive mode. The processing unit is configured to process at least one reflected wave signal received from at least one of the first radar component and the second radar component. The controller is configured to control (e.g., switch between active mode and passive mode) at least one of the first radar component and the second radar component. 1. A radar system comprising:a first radar component and a second radar component, at least one of the first radar component and the second radar component configured to transmit at least one monitoring wave, and at least one of the first radar component and the second radar component configured to receive at least one reflected wave, the first radar component and the second radar component comprising an active mode and a passive mode, the active mode defined by the receiving of a power supply;a processing unit configured to process at least one reflected wave signal received from at least one of the first radar component and the second radar component, the reflected wave signal indicative of the at least one reflected wave; anda controller configured to control at least one of the first radar component and the second radar component, wherein the controller maintains the first radar component and the second radar component in the active mode during a first time period and a second time period.2. The radar system of claim 1 , wherein the passive mode is defined by at least one of:the receiving of a ...

RADAR AND ANTENNA APPARATUS BUILT IN RADAR

A radar includes a transmitter antenna unit including a plurality of transmitter antennas; a receiver antenna unit including a plurality of receiver antennas; a transceiver configured to transmit sending signals through the transmitter antenna unit and receive return signals reflected from a target object trough the receiver antenna unit; and a processing unit configured to derive information about the target object by processing the received return signals. The processing unit selects at least one of the plurality of transmitter antennas and sets the selected at least one transmitter antenna to one of a mid/long-range detection mode or a short-range detection mode. One of the transmitter antenna unit or the receiver antenna unit forms a vertical offset. 1. A radar , comprising:a transmitter antenna unit including a plurality of transmitter antennas;a receiver antenna unit including a plurality of receiver antennas;a transceiver configured to transmit sending signals through the transmitter antenna unit and receive return signals reflected from a target object trough the receiver antenna unit; anda processing unit configured to derive information about the target object by processing the received return signals,wherein the processing unit selects at least one of the plurality of transmitter antennas and sets the selected at least one transmitter antenna to one of a mid/long-range detection mode or a short-range detection mode, andone of the transmitter antenna unit or the receiver antenna unit forms a vertical offset.2. The radar of claim 1 ,wherein if the receiver antenna unit forms the vertical offset,the processing unit selects a first transmitter antenna and a second transmitter antenna from among the plurality of transmitter antennas and sets the selected transmitter antennas to the mid/long-range detection mode.3. The radar of claim 2 , further comprising:a virtual receiver antenna forming unit configured to form a virtual receiver antenna unit arranged at a ...

ANTENNA DEVICE AND RADAR DEVICE

An antenna device is formed in such a manner that reception antennas are arranged at regular intervals between two transmission antennas adjacent to each other among transmission antennas, and a spacing between the transmission antenna and the transmission antenna has a width obtained by adding an integral multiple of a spacing dbetween each two of the reception antennas to a width obtained by dividing the spacing dby the number Nof the transmission antennas. 1. An antenna device comprising:a plurality of transmission antennas to radiate transmission signals; anda plurality of reception antennas each to receive, as a reflected signal, each of the transmission signals radiated from the respective plurality of transmission antennas and then reflected by a target, and output a reception signal corresponding to the reflected signals, whereinthe plurality of reception antennas are arranged at regular intervals between two transmission antennas adjacent to each other among the plurality of transmission antennas, and a spacing between the two transmission antennas has a width obtained by adding an integral multiple of a spacing between each two of the plurality of reception antennas to a width obtained by dividing the spacing between each two of the plurality of reception antennas by a number of the plurality of transmission antennas.2. The antenna device according to claim 1 , whereinspacings between each two of the plurality of transmission antennas differ from each other, andeach of the spacings between each two of the plurality of transmission antennas has a width obtained by adding an integral multiple of the spacing between each two of the plurality of reception antennas to an integral multiple of the width obtained by dividing the spacing between each two of the plurality of reception antennas by the number of the plurality of transmission antennas.3. The antenna device according to claim 1 , wherein a spacing between a first transmission antenna included in the two ...

RADAR DEVICE

One of a transmitting array antenna and a receiving array antenna includes a first antenna group and a second antenna group. The first antenna group includes one or more first antenna elements of which the phase centers of the antenna elements are laid out at each first layout spacing following a first axis direction, and a shared antenna element. The second antenna group includes a plurality of second antenna elements and the one shared antenna element, and the phase centers of the antenna elements are laid out in two columns at each second layout spacing following a second axis direction that is different from the first axis direction. The phase centers of the antenna elements included in each of the two columns differ from each other regarding position in the second axis direction. 1. A radar device , comprising:a radar transmitting circuit that transmits radar signals from a transmitting array antenna; anda radar receiving circuit that receives returning wave signals, where the radar signals have been reflected at a target, from a receiving array antenna,wherein one of the transmitting array antenna or the receiving array antenna includes a first antenna group and a second antenna group,wherein the first antenna group includes one or more first antenna elements and a shared antenna element, phase centers of antenna elements of the first antenna group are laid out at a first layout spacing or a second layout spacing in a first axial direction, and the second layout spacing is smaller than the first layout spacing,wherein the second antenna group includes a plurality of second antenna elements and the shared antenna element, phase centers of all antenna elements of the second antenna group are laid out in different positions in a second axial direction different from the first axial direction, and phase centers of at least two antenna elements of the second antenna group are laid out in the same position in the first axial direction,wherein the other of the ...

APPARATUS AND METHOD FOR SECURITY CHECK OF MULTIPLE HUMAN BODIES BASED ON LINEAR FREQUENCY MODULATION

This invention provides a security check apparatus for multiple human bodies based on linear frequency modulation, which comprises a scanning device, a millimeter wave signal transceiver module, and an image processing unit. The scanning device comprises several detection seats and several guideways and motors arranged on the detection seats; the detection seats are configured to accommodate persons to be security checked; a set of the millimeter wave signal transceiver modules are arranged on each guideway, and each millimeter wave signal transceiver module is driven by the motor to move along the guideway; the several detection seats are arranged in longitudinal direction. The millimeter wave signal transceiver modules are configured to transmit millimeter wave signals to the persons to be security checked and receive millimeter wave signals reflected from the persons to be security checked. The image processing unit is configured to perform holographic 3D imaging on the human bodies of the persons to be security checked based on the reflected millimeter wave signals to obtain 3D images of the human bodies. This invention also provides a security check method for multiple human bodies based on linear frequency modulation. This invention has the advantages of low cost, simple structure, easy integration, high resolution, more persons are detected per unit time, and no radiation hazard to human bodies. 1. A security check apparatus for multiple human bodies based on linear frequency modulation , the security check apparatus comprising:a scanning device;a millimeter wave signal transceiver device;an image processing device, several detection seats;', 'several guideways;', 'motors arranged on the detection seats; and', 'a set of the millimeter wave signal transceiver devices that are arranged on each guideway,, 'wherein the scanning device compriseswherein the detection seats are configured to accommodate persons to be security checked,wherein each millimeter wave ...

DOPPLER RADAR SENSOR WITH BONDWIRE INTERCONNECTION

A Doppler radar sensor includes a radar and a bondwire interconnection. The bondwire interconnection is connected to a signal generator and an antenna of the radar and configured to transmit a radio frequency signal generated by the signal generator to the antenna and transmit a reflected signal received by the antenna to a demodulator of the radar. A metal strip, a first shunt bondwire and a second shunt bondwire of the bondwire interconnection can be used as a matching circuit of the antenna to decrease the transmission loss and increase the detection distance of the radar. 1. A Doppler radar sensor , comprising:a radar including a signal generator, an antenna and a demodulator, the signal generator is configured to generate a radio frequency signal, the antenna is configured to receive and radiate the radio frequency signal as a wireless signal to an object and further configured to receive a reflected signal from the object, the demodulator is coupled to the signal generator and the antenna and configured to receive the radio frequency signal and the reflected signal, the demodulator is configured to demodulate the reflected signal by using the radio frequency signal as a reference signal to obtain a displacement signal; anda bondwire interconnection coupled to the antenna and the signal generator, the antenna is coupled to the signal generator via the bondwire interconnection, wherein the bondwire interconnection includes a first metal strip, a first shunt bondwire, a second shunt bondwire, a second metal strip, a third shunt bondwire, a third metal strip and a fourth shunt bondwire, two ends of the first shunt bondwire are coupled to the signal generator and the first metal strip, respectively, two ends of the second shunt bondwire are coupled to the first metal strip and the antenna, respectively, two ends of the third shunt bondwire are coupled to the second metal strip and a ground end of the radar, respectively, and two ends of the fourth shunt bondwire ...

RADAR SENSOR HAVING MULTIPLE RADAR CHIPS

The description below relates to a method for a radar sensor. According to one example implementation, the method comprises receiving configuration data and storing the received configuration data in a first radar chip having multiple transmission channels. The configuration data contain multiple parameter sets for a chirp sequence and association information representing an association of a respective chirp of the chirp sequence with one of the multiple parameter sets. The method further comprises receiving a trigger signal in the first radar chip. The trigger signal indicates the beginning of a respective chirp of the chirp sequence. The transmission channels mentioned are repeatedly configured in sync with the trigger signal, wherein for each chirp of the chirp sequence the transmission channels are configured according to the respective association information. The method further comprises receiving an RF oscillator signal representing the chirp sequence, and supplying the RF oscillator signal to the accordingly configured transmission channels. 1. A method comprising:receiving configuration data and storing the configuration data in a first radar chip having multiple transmission channels, wherein the configuration data includes multiple parameter sets for a chirp sequence and association information representing an association of a respective chirp of the chirp sequence with one of the multiple parameter sets;receiving a trigger signal in the first radar chip, wherein the trigger signal indicates a beginning of a respective chirp of the chirp sequence;repeatedly configuring the transmission channels in sync with the trigger signal to obtain configured transmission channels, wherein, for each chirp of the chirp sequence, the transmission channels are configured according to the association information;receiving a radio-frequency (RF) oscillator signal representing the chirp sequence; andsupplying the RF oscillator signal to the configured transmission channels. ...

DOPPLER RADAR SENSOR WITH POWER DETECTOR

A Doppler radar sensor with a power detector is disclosed. In the Doppler radar sensor, a power detector is provided to detect the power level of a received transmission signal, and a leakage and clutter canceler is provided to generate a cancellation signal according to the power level of the received transmission signal. The cancellation signal is used to cancel leakage and clutter in the received transmission signal such that object displacement in the received transmission signal can be identified. 1. A Doppler radar sensor , comprising:a radar configured to radiate a wireless signal to an object and receive a reflected signal from the object and a clutter from a background where the object is placed, wherein a received transmission signal is formed from the reflected signal, the clutter and a leakage signal of the radar;a power detector coupled to the radar, the power detector is configured to detect a power level of the received transmission signal and output a detection signal according to the power level of the received transmission signal; anda leakage and clutter canceler coupled to the power detector, the leakage and clutter canceler is configured to receive the detection signal and generate a cancellation signal to the radar according to the detection signal, wherein the cancellation signal is configured to cancel the leakage signal and the clutter in the received transmission signal.2. The Doppler radar sensor in accordance with claim 1 , wherein the leakage and clutter canceler includes a microprocessor control unit claim 1 , an adjustable phase shifter and a varied gain amplifier claim 1 , the microprocessor control unit is electrically connected to the power detector and configured to receive the detection signal claim 1 , and the microprocessor control unit is further configured to output control signals according to the detection signal to the adjustable phase shifter and the varied gain amplifier claim 1 , respectively.3. The Doppler radar sensor ...

Radar front-end with rf oscillator monitoring

A radar method is described. According to one exemplary embodiment, the method includes generating a first RF oscillator signal in a first chip and supplying the first RF oscillator signal to a transmission (TX) channel of the first chip and transmitting the first RF oscillator signal from the TX channel of the first chip to the second chip via a transmission line.

ROTATING RADAR SYSTEM UTILIZING MIMO RADAR PROCESSING

A radar system deploys a MIMO antenna assembly containing arrays of antenna elements. The MIMO antenna assembly may be rotated by a rotational assembly. Control circuitry may be used to form one or more beams. Receiver antennae may receive reflected signals transmitted by transmitter antennae. The received signals may be processed to generate a radar image. This radar system may be used in a marine vessel. 1. A marine multiple input multiple output (MIMO) radar system , comprising:a rotating MIMO antenna assembly comprising at least two transmitting antennae for transmitting signals and at least one receiving antennae for receiving reflected signals; andcontrol circuitry for controlling the MIMO antenna assembly to perform adaptive beamforming.2. The marine MIMO radar system of claim 1 , wherein the transmitting antennae and the receiving antennae are co-located such that the transmitting antennae and the receiving antennae are aligned in a vertical plane.3. The marine MIMO radar system of claim 1 , wherein the transmitting antennae each have multiple elements arranged vertically in a column.4. The marine MIMO radar system of claim 1 , wherein at least one of the antennae antennas acts as both one of the transmitting antennae and one of the receiving antennae.5. The marine MIMO radar system of claim 1 , wherein each of the antennae contains at most 10 antenna elements.6. The marine MIMO radar system of claim 1 , wherein the adaptive beamforming is in accordance with one of the following:multiple signal classifier (MUSIC) adaptive beam forming; estimation of signal parameters via rotational invariance technique (ESPRIT) adaptive beam forming or minimum variance distortionless response (MVDR) adaptive beam forming.7. The marine MIMO radar system of wherein the MIMO antenna assembly includes at least twice as many receiving antennae as transmitting antennae.8. The marine MIMO radar system of claim 1 , wherein the system includes a housing for housing the antennae and ...

RADAR DEVICE

A radar device includes a plurality of antenna elements aligned in a left-right direction and an up-down direction. A CPU that calculates the individual arrival angles in an arrival angle group for the left-right direction on the basis of reflected waves received by the plurality of antenna elements aligned in the left-right direction and the individual arrival angles in an arrival angle group for the up-down direction on the basis of reflected waves received by the plurality of antenna elements aligned in the up-down direction. According to the combination of the number of left-right direction arrival angles and up-down direction arrival angles, the CPU selects a method for pairing the arrival angles for the left-right direction and the up-down direction. The radar device is capable of appropriately pairing arrival angles in the two sets of directions and specifying the two-dimensional directions of each of a plurality of objects. 1. A radar device comprising:a plurality of antenna elements arranged in a first direction;a plurality of antenna elements arranged in a second direction different from the first direction; anda processor, calculates individual arrival angles of an arrival angle group in the first direction based on reflected waves received by the plurality of antenna elements arranged in the first direction,', 'calculates individual arrival angles of an arrival angle group in the second direction based on reflected waves received by the plurality of antenna elements arranged in the second direction, and', 'according to a combination of a number of the arrival angles in the first direction and a number of the arrival angles in the second direction, selects a method of pairing the individual arrival angles of the arrival angle group in the first direction with the individual arrival angles of the arrival angle group in the second direction., 'wherein the processor'}2. The radar device according to claim 1 , wherein claim 1 , if the number of arrival angles ...

Phased Array Antenna with Isotropic and Non-Isotropic Radiating and Omnidirectional and Non-Omnidirectional Receiving Elements

A phased array antenna system comprising: a first plurality of array elements, each array element in the first plurality comprising a radiating element having a generally isotropic radiating pattern and/or a receiving element having a generally omnidirectional field of view; and a second plurality of array elements, each array element in the second plurality comprising a radiating element having a non-isotropic radiating pattern and/or a receiving element having a non-omnidirectional field of view; wherein: the generally isotropic radiating pattern comprises a field of at least 120° in azimuth and 90° in elevation; the generally omnidirectional field of view comprises a field of at least 120° in azimuth and 90° in elevation; the non-isotropic radiating pattern comprises a field of less than half of the field of the generally isotropic radiating pattern in azimuth and/or elevation; and the non-omnidirectional field of view comprises a field of less than half of the field of the omnidirectional field of view. 1. A phased array antenna system comprising:a first plurality of array elements, each said array element in said first plurality comprising a radiating element having a generally isotropic radiating pattern and/or a receiving element having a generally omnidirectional field of view; anda second plurality of array elements, each said array element in said second plurality comprising a radiating element having a non-isotropic radiating pattern and/or a receiving element having a non-omnidirectional field of view; wherein:said generally isotropic radiating pattern comprises a field of at least 120° in azimuth and 90° in elevation;said generally omnidirectional field of view comprises a field of at least 120° in azimuth and 90° in elevation;said non-isotropic radiating pattern comprises a field of less than half of said field of said generally isotropic radiating pattern in elevation;said non-omnidirectional field of view comprises a field of less than half of said ...

INTERCONNECTION BETWEEN PRINTED CIRCUIT BOARDS

Disclosed is a method and device for interconnection of printed circuit boards operating at millimeter wave frequency band. The device comprises a primary printed circuit board, a secondary printed circuit board, an interconnection module for coupling electromagnetic energy from the primary printed circuit board to the secondary printed circuit board. The primary printed circuit board further comprising a primary top dielectric layer, specific via arrangements, a radio frequency chip, a primary high frequency transmission line connected to the radio frequency chip at one end and other end to a first inset-fed patch. The secondary printed circuit board further comprising a secondary top dielectric layer, specific via arrangements, a printed array antenna, a secondary high frequency transmission line connected to printed array antenna at one end, and other end to a second inset-fed patch. The interconnection module further comprising a first cut-out section, a second cut-out section and a slot. 1. A device for interconnection of printed circuit boards operating at millimeter wave frequency band , the device comprising:{'b': 12', '20', '12', '14', '20', '22', '14', '14', '34', '22', '32', '22', '36', '34', '32', '36', '38', '92, 'a primary printed circuit board () comprising a primary top dielectric layer () on the primary printed circuit board (), a radio frequency chip () on the primary top dielectric layer (), a primary high frequency transmission line () extending from the radio frequency chip () and connected to the radio frequency chip () at one end, a first inset-fed patch () connected to other end of the high frequency transmission line (), a first arrangement of plated through holes (ground vias) () surrounding the primary high frequency transmission line (), a second arrangement of plated through holes (ground vias) () surrounding the first inset-fed patch (), wherein the first arrangement of plated through holes (ground vias) (), and the second arrangement ...

PHASE COMPENSATED MULTI-LAYER, MULTI-STEERING ANTENNA ARRAY FOR MILLIMETER WAVE APPLICATIONS

Examples disclosed herein relate to a multi-layer, multi-steering (“MLMS”) antenna array for millimeter wavelength applications. The MLMS antenna array includes a superelement antenna array layer comprising a plurality of superelement subarrays. In some aspects, each superelement subarray of the plurality of superelement subarrays includes a plurality of phase compensated slots for radiating a transmission signal. The MLMS antenna array also includes a power division layer configured to serve as a feed to the superelement antenna array layer. The MLMS antenna array also includes a top layer disposed on the superelement antenna array layer. The top layer may include a superstrate or a metamaterial antenna array. Other examples disclosed herein include a radar system for use in an autonomous driving vehicle. 1. A multi-layer , multi-steering (MLMS) antenna array , comprising:a superelement antenna array layer comprising a plurality of superelement subarrays, wherein each superelement subarray of the plurality of superelement subarrays includes a plurality of phase compensated slots for radiating a transmission signal;a power division layer configured to serve as a feed to the superelement antenna array layer; anda top layer disposed on the superelement antenna array layer.2. The MLMS antenna array of claim 1 , wherein the superelement antenna array layer includes a first region having a first set of superelement subarrays of the plurality of superelement subarrays and a second region having a second set of superelement subarrays of the plurality of superelement subarrays claim 1 , wherein the first region includes slots with phase compensation that is different from that of slots in the second region.3. The MLMS antenna array of claim 2 , wherein slots in each of the plurality of superelement subarrays are separated by different distances and phase compensated with different phases based at least on which of the first region and the second region of the superelement ...

METHODS, APPARATUS, AND SYSTEM FOR A FREQUENCY DOUBLER FOR A MILLIMETER WAVE DEVICE

An apparatus for performing a frequency multiplication of an mm-wave wave signal is provided. The apparatus includes a first differential circuit that is capable of receiving a 0° phase component of an input signal and a 180° phase component of the input signal having a first frequency. The first differential circuit provides a first output signal that is twice the frequency and is in −phase(0°) based on the 0° the 180° phase components of the input signal. The apparatus also includes a second differential circuit that is capable of receiving a 90° phase component of the input signal and a 270° phase component of the input signal, and provide a first output signal that is twice the frequency and out of phase(180°). The apparatus also includes a differential transformer that is configured to receive the first output signal and the second output signal. The differential transformer is configured to provide a differential output signal that has a second frequency that is twice the first frequency. 1. An apparatus , comprising:a first differential circuit capable of receiving a 0° phase component of an input signal at a first input of the first differential circuit and a 180° phase component of said input signal at a second input of the first differential circuit, and providing a first output signal based on said 0° and said 180° phase components of said input signal;a second differential circuit capable of receiving a 90° phase component of said input signal at a first input of the second differential circuit and a 270° phase component of said input signal at a second input of the second differential circuit, and providing a first output signal based on said 90° and said 270° phase components of said input signal, wherein said input signal has a first frequency; anda differential transformer configured to receive said first output signal at a first node and receive said second output signal at a second node, wherein said differential transformer is configured to ...

TRANSITIONAL WAVEGUIDE STRUCTURES AND RELATED SENSOR ASSEMBLIES

Antenna assemblies for vehicles, such as RADAR sensor antenna assemblies. In some embodiments, the assembly may comprise an antenna block defining a waveguide groove and an adapter portion comprising a ridge. The ridge may taper or otherwise transition in height and/or width to facilitate a transition between two adjacent elements of the assembly, such as two adjacent waveguide structures comprising ridges having different cross-sectional dimensions. 1. An antenna module , comprising:an antenna block defining a waveguide groove on a first side of the antenna block; and a first end comprising a first height and a first width at the first end; and', 'a second end opposite the first end, the second end comprising a second height and a second width at the second end, wherein the first height differs from the second height, and wherein the first width differs from the second width., 'a ridge extending within the waveguide groove, wherein the waveguide groove comprises an adapter portion, the adapter portion comprising2. The antenna module of claim 1 , wherein the second height is greater than the first height claim 1 , and wherein the second width is less than the first width.3. The antenna module of claim 2 , wherein the adapter portion smoothly transitions between the first width and the second width.4. The antenna module of claim 3 , wherein each of the first height claim 3 , the first width claim 3 , the second height claim 3 , and the second width are defined by a ridge of the adapter portion claim 3 , and wherein the adapter portion smoothly transitions between the first height and the second height.5. The antenna module of claim 1 , wherein the adapter portion comprises a plurality of distinct sections claim 1 , and wherein a ridge of each of the plurality of distinct sections transitions between a respective first height and second height differing from the respective first height claim 1 , and between a respective first width and second width differing from the ...

FEED TO WAVEGUIDE TRANSITION STRUCTURES AND RELATED SENSOR ASSEMBLIES

Waveguide module assemblies for vehicles, such as radar sensor waveguide feed to waveguide transition assemblies. In some embodiments, an antenna module may comprise an antenna assembly that includes a resonating element and a waveguide component that defines, at least in part, a waveguide configured to guide electromagnetic energy radiating from the resonating element. The resonating element of the antenna assembly may directly feed electromagnetic energy into the waveguide defined by the waveguide component. 1. A waveguide module , comprising: a first portion defining a resonating patch coupled to a feed input of the waveguide module by a feed, and', 'a second portion conductively isolated from the first portion and coupled to the conductive ground layer by a plurality of conductive vias defined in the substrate; and, 'a feed component, the feed component comprising a conductive ground layer, a conductive top layer, and a substrate disposed between the conductive ground layer and the conductive top layer, the conductive top layer comprisinga waveguide component, the waveguide component comprising a plurality of waveguide structures, the plurality of waveguide structures at least in part defining a waveguide, the waveguide component being coupled with the feed component such that the resonating patch directly feeds the waveguide, the waveguide defining a waveguide output of the waveguide module.2. The waveguide module of claim 1 , wherein the plurality of waveguide structures comprise a plurality of post claim 1 , the plurality of posts comprising:at least a first row of posts defining a first side of the waveguide; andat least a second row of posts defining a second side of the waveguide opposite the first side of the waveguide.3. The waveguide module of claim 2 , wherein the at least a first row of posts and the at least a second row of posts each comprise a plurality of rows of posts.4. The waveguide module of claim 1 , wherein the waveguide component further ...

SYSTEM AND METHOD FOR A MULTI-CHANNEL ANTENNA SYSTEM

Systems, methods, and computer-readable media are described for combining digital and analog beamsteering in a channelized antenna array. In some examples, a method can include receiving one or more signals at each of a plurality of groups of antenna elements, each group of antenna elements defining a respective channel from a plurality of channels, and steering, by each respective channel and using analog steering, the one or more signals in a respective direction to yield a steered analog signal pattern. The method can further include converting the steered analog signal pattern associated with each respective channel into a respective digital signal and, based on the respective digital signal, generating, using digital steering, digital signal patterns steered within the steered analog signal pattern associated with the respective digital signal. 1. A method comprising:receiving one or more signals at each of a plurality of groups of antenna elements, each group of antenna elements defining a respective channel from a plurality of channels;steering, by each respective channel and using analog steering, the one or more signals in a respective direction to yield a steered analog signal pattern;converting the steered analog signal pattern associated with each respective channel into a respective digital signal; andbased on the respective digital signal, generating, using digital steering, one or more steered digital signal patterns, the one or more steered digital signal patterns being steered within the steered analog signal pattern associated with the respective digital signal.2. The method of claim 1 , wherein generating the one or more steered digital signal patterns comprises:based on the respective digital signal associated with at least one of the plurality of channels, steering one or more nulls in one or more directions associated with at least one of a source of interference and an unwanted target, the one or more directions being at least partly within ...

Multi-purpose coolant interface

A coolant interface includes a line replaceable unit (LRU) inserted into a slot within a modular assembly such as a chassis for an electronics assembly. Quick disconnect fluid coupling fittings on the LRU mate with counterpart fittings on a fluid distribution manifold within the chassis when the LRU is inserted into the slot. A seal surrounding the quick disconnect fluid coupling fittings on a flat surface abutting a counterpart surface on the fluid distribution manifold when the LRU is inserted into the slot compresses the seal against the counterpart surface. Alignment pin(s) projecting from the flat surface and received by corresponding guide holes within the counterpart surface, and captive hardware provides pressure between the flat surface and the counterpart surface to increase and maintain compression of the seal. The alignment pins and captive hardware are arranged to increase mechanical stability of the connection.

RADAR DEVICE, IN PARTICULAR FOR A MOTOR VEHICLE

A radar device, in particular for a motor vehicle, which includes a housing having a first housing part that defines a receiving space () The housing also includes a second housing part, which is attached to the first housing part and forms a cover for at least the receiving space. Aa circuit board is accommodated within the housing, and the circuit board has at least one transmission antenna means for transmitting radar beams. The circuit board also has at least one receiving antenna means for receiving radar beams on a first surface which faces the second housing part when in the intended mounted position. The circuit board further includes electronic high frequency circuitry components and low frequency circuitry components on a second surface, as well as at least one shielding means inside the housing. The shielding means is configured for shielding against electromagnetic radiation. The shielding means comprises an integral shielding body disposed between the first housing part and the second housing part, and which is designed such that it can enclose the electronic high frequency circuitry components and the low frequency circuitry components. 1. A radar device comprising:a housing having a first housing part which defines a receiving space, said housing also having a second housing part which is attached to the first housing part and forms a cover for at least the receiving space; at least one transmission antenna for transmitting radar beams;', 'at least one receiving antenna for receiving radar beams on a first surface which faces the second housing part when in the intended mounted position; and', 'electronic high frequency circuitry components and low frequency circuitry components on a second surface;, 'a circuit board accommodated within the housing, said circuit board havingat least one shielding means inside the housing, wherein the shielding means is configured for shielding against electromagnetic radiation; andwherein the shielding means comprises ...

WAVEGUIDE COUPLING DEVICE FOR A RADAR SENSOR

A waveguide coupling device for a radar sensor is provided. The waveguide coupling device may include a waveguide for radiating and/or receiving a radar signal and a high frequency substrate. The high frequency substrate may include at least one input waveguide for injecting at least one excitation wave into the high frequency substrate, a radiating region for coupling the excitation wave out of the high frequency substrate, and an optionally substrate-integrated waveguide coupled to the input waveguide and the radiating region. The waveguide may have an excitation end arranged on its radiation region. 1. A waveguide coupling device for a radar sensor , comprising:a waveguide to emit or receive a radar signal; anda high-frequency substrate having at a first end at least one input conductor to feed at least one excitation wave into the high-frequency substrate, at a second end opposite the first end a radiation region to couple the excitation wave out of the high-frequency substrate, and a waveguide coupled to the input conductor and the radiation region,wherein an excitation end of the waveguide is arranged on the radiation region of the high-frequency substrate such that the excitation wave can be coupled into the excitation end of the waveguide via the radiation region of the high-frequency substrate,wherein the waveguide comprises at least a first excitation element and a second excitation element, each of which is disposed at the excitation end in an interior volume of the waveguide, andwherein the first excitation element has a first length measured in the longitudinal direction of the waveguide and the second excitation element has a second length dimensioned in the longitudinal direction of the waveguide, which is different from the first length of the first excitation element, so that at least a first resonant wave with a first resonant frequency and a second resonant wave with a second resonant frequency is excitable via the excitation wave at the first ...

Radar device for vehicle

A radar device for a vehicle, according to an embodiment of the present invention, comprises: a case; a first printed circuit board (PCB) that is accommodated in the case and has a plurality of antenna arrays and an integrated circuit (IC) chip that are formed thereon, wherein the IC chip is connected to the plurality of antenna arrays; and a radome that is coupled to the case and covers the first printed circuit board, wherein the radome includes: a cover facing the first printed circuit board; a first wall connected to the cover surface; and a second wall connected to the cover and facing the first wall, wherein the internal angle between the cover and the first wall and the internal angle between the cover and the second wall are formed to be greater than 90° and less than 180°.

RADAR DEVICE

Provided is a radar device, wherein a transmission array antenna includes a plurality of transmission antennas that are linearly disposed in a first direction, the intervals between respective adjacent transmission antennas of the plurality of transmission antennas increase from one side toward the other side in the first direction, a reception array antenna includes a plurality of reception antennas that are linearly disposed in the first direction, and the intervals between respective adjacent transmission antennas of the plurality of reception antennas decrease from one side toward the other side. 113-. (canceled)14. A radar apparatus comprising:a radar transmission circuit that transmits a radar signal by using a transmission array antenna; anda radar reception circuit that receives a reflected wave signal that is the radar signal reflected by a target by using a reception array antenna, wherein:the transmission array antenna includes a plurality of transmission antennas arranged in a first direction, and at least two spacings of a first plurality of spacings between adjacent transmission antennas of the plurality of transmission antennas increases in the first direction, and wherein:the reception array antenna includes a plurality of reception antennas arranged in the first direction, and at least two spacings of a second plurality of spacings between adjacent transmission antennas of the plurality of reception antennas decreases in the first direction.15. The radar apparatus according to claim 14 , wherein:a maximum spacing of the first plurality of spacings is greater than a minimum spacing of the second plurality of spacings and less than or equal to an aperture length of the reception array antenna.16. The radar apparatus according to claim 14 , wherein:a maximum spacing of the second plurality of spacings is greater than a minimum spacing of the first plurality of spacings and less than or equal to an aperture length of the transmission array antenna.17. ...

ON-VEHICLE RADAR DEVICE AND VEHICLE

An on-vehicle radar device includes a mount and an antenna configured to transmit a transmission wave from an inner side of laminated glass, which includes an innermost glass layer, an outermost glass layer, and an intermediate resin layer, and receive a reflected wave. The antenna includes a transmitting antenna. When the mount is mounted on a bracket, the incident angle of the transmission wave on the innermost glass layer is greater than a Brewster angle on the inner surface of the innermost glass layer, and the incident angle of the transmission wave on the outermost glass layer is less than or equal to a Brewster angle between the outermost glass layer and the intermediate resin layer. 1. An on-vehicle radar device comprising:a mount configured to be mounted on a bracket that is fixed to one of an innermost glass layer of laminated glass, a rear-view mirror placed on an inner side of the innermost glass layer, and a ceiling, the laminated glass including the innermost glass layer, an outermost glass layer, and an intermediate resin layer that is sandwiched between the innermost glass layer and the outermost glass layer;an antenna configured to transmit a transmission wave from the inner side of the innermost glass layer to an outer side of the outermost glass layer and to receive a reflected wave that enters from the outer side of the outermost glass layer to the inner side of the innermost glass layer, the transmission wave being a radio wave in a millimeter wave band; whereinthe antenna includes at least a first transmitting antenna and a second transmitting antenna both configured to transmit the transmission wave;a vertical polarization component of the transmission wave relative to the laminated glass is greater than a horizontal polarization component thereof;a radiation range of the first transmitting antenna in a horizontal direction is wider than that of the second transmitting antenna in the horizontal direction;when the mount is mounted on the ...

RADAR DEVICE FOR VEHICLE

A radar device for a vehicle, according to an embodiment of the present invention, comprises: a case; a first printed circuit board (PCB) that is accommodated in the case and has a plurality of antenna arrays and an integrated circuit (IC) chip that are formed thereon, wherein the IC chip is connected to the plurality of antenna arrays; and a radome that is coupled to the case and covers the first printed circuit board, wherein the radome includes: a cover facing the first printed circuit board; a first wall connected to the cover surface; and a second wall connected to the cover and facing the first wall, wherein the internal angle between the cover and the first wall and the internal angle between the cover and the second wall are formed to be greater than 90° and less than 180°. 1. A radar device for a vehicle , comprising:a case comprising an upper surface and a plurality of side surfaces extending downwardly from the upper surface;a first printed circuit board (PCB) accommodated in the case and comprising formed thereon a plurality of antenna arrays and an integrated circuit (IC) chip connected to the plurality of antenna arrays; anda radome coupled to the case and configured to cover the first PCB,wherein the radome includes:a cover surface having a flat shape facing the first PCB;a first wall surface connected to the cover surface; anda second wall surface connected to the cover surface and configured to face the first wall surface,wherein the cover surface of the radome comprises an outer surface and an inner surface closer to the first PCB than is the outer surface,wherein the first wall surface of the radome comprises an outer surface and an inner surface closer to the first PCB than is the outer surface,wherein the second wall surface of the radome comprises an outer surface and an inner surface closer to the first PCB than is the outer surface,wherein a distance between the inner surface of the first wall surface and the inner surface of the second wall ...

CONFORMAL AND CONFIGURABLE MILLIMETER-WAVE INTEGRATED ARRAY RADAR IN A COMPACT PACKAGE

The invention provides a compact, high-frequency, transmit and receive millimeter-wave radar sensor device, system, and method of use. The sensor can operate at a variety of distances, speeds, and resolutions depending on the hardware components selected in a given implementation. The hardware and software architecture is generic and can be tailored to required applications. 2. (canceled)3. The radar device of claim 1 , wherein the device operates at a center frequency of about 24 GHz.4. The radar device of claim 1 , wherein the device operates at a bandwidth from about 100 MHz to about 25% of the center frequency.5. The radar device of claim 1 , wherein the device is mounted in claim 1 , on claim 1 , or under a motor vehicle and capable of determining a roadway characteristic or a characteristic of the vehicle environment.6. The radar device of that is capable of determining a roadway characteristic selected from the group consisting of pavement water content claim 5 , surface ice claim 5 , surface water claim 5 , pavement microcracks claim 5 , pavement macrocracks claim 5 , ruts claim 5 , potholes claim 5 , skid resistance claim 5 , estimated braking distance claim 5 , surface resistivity claim 5 , surface conductivity claim 5 , pavement dielectric constant claim 5 , and surface roughness.7. The radar device of that is capable of determining the presence of obstacles in the vicinity of the vehicle claim 5 , and the obstacle is selected from the group consisting of a human or animal claim 5 , another vehicle claim 5 , a guard rail claim 5 , a curb claim 5 , a wall claim 5 , a barrier claim 5 , a post claim 5 , a column claim 5 , a piece of construction equipment claim 5 , a building claim 5 , a tree claim 5 , and a utility pole.811.-. (canceled)12. The radar device of that is capable of detecting structural features with a resolution of less than 1 mm.13. The radar device of having dimensions not greater than 100 mm×40 mm×5 mm.14. The radar device of that weighs ...

Universal transmit/receive module for radar and communications

A universal transmit-receive (UTR) module for phased array systems comprises an antenna element shared for both transmitting and receiving; a transmit path that includes a transmit-path phase shifter, a driver, a switch-mode power amplifier (SMPA) that is configured to be driven by the driver, and a dynamic power supply (DPS) that generates and supplies a DPS voltage to the power supply port of the SMPA; and a receive path that includes a TX/RX switch that determines whether the receive path is electrically connected to or electrically isolated from the antenna element, a bandpass filter (BPF) that aligns with the intended receive frequency and serves to suppress reflected transmit signals and reverse signals, an adjustable-gain low-noise amplifier (LNA), and a receive-path phase shifter. The UTR module is specially designed for operation in phased array systems. The versatility and wideband agility of the UTR module allows a single phased array system to be designed that can be used for multiple purposes, such as, for example, both radar and communications applications.

REDUNDANT FREQUENCY MODULATORS IN RADAR SYSTEM

A radar system includes one or more antennas to emit transmit signals and receive reflected signals resulting from reflection of the transmit signals by an object. The transmit signals are linear frequency modulated continuous wave (LFMCW) signals. The radar system also includes a transmission generator to generate the transmit signals. The transmission generator includes a controller to control output of a first of the transmit signals and a second of the transmit signals in succession. A time between transmission of the first of the transmit signals and the second of the transmit signals is less than a duration of a stabilization period of a first oscillator used to generate the first of the transmit signals. 1. A radar system , comprising:one or more antennas to emit transmit signals and receive reflected signals resulting from reflection of the transmit signals by an object, the transmit signals being linear frequency modulated continuous wave (LFMCW) signals; anda transmission generator configured to generate the transmit signals, the transmission generator including a controller configured to control output of a first of the transmit signals and a second of the transmit signals in succession, wherein a time between transmission of the first of the transmit signals and the second of the transmit signals is less than a duration of a stabilization period of a first oscillator used to generate the first of the transmit signals.2. The radar system according to claim 1 , wherein the transmission generator includes a second oscillator used to generate the second of the transmit signals.3. The radar system according to claim 2 , wherein the transmission generator includes a multiplexer.4. The radar system according to claim 3 , wherein the controller is configured to control the multiplexer to output one of the transmit signals generated based on the first oscillator and another of the transmit signals generated based on the second oscillator claim 3 , successively.5. ...

CHIP-BASED TRANSMIT CHANNEL ARCHITECTURE

A radar system includes a transmit section to emit a transmit signal. A chip-based front-end portion of the transmit section increases a frequency of an input signal to produce an intermediate signal and amplifies signal strength of the intermediate signal to produce the transmit signal. The frequency of the input signal is in a range of 76 gigahertz (GHz) to 80 GHz. The radar system also includes a receive section to receive a reflected signal resulting from reflection of the transmit signal by an object. 1. A radar system , comprising:a transmit section configured to emit a transmit signal;a chip-based front-end portion of the transmit section configured to increase a frequency of an input signal to produce an intermediate signal and amplify signal strength of the intermediate signal to produce the transmit signal, the frequency of the input signal being in a range of 76 gigahertz (GHz) to 80 GHz; anda receive section configured to receive a reflected signal resulting from reflection of the transmit signal by an object.2. The radar system according to claim 1 , wherein the front-end portion includes a three times multiplier to increase the frequency of the input signal and produce the intermediate signal with a frequency range of 228 GHz to 240 GHz.3. The radar system according to claim 2 , wherein the intermediate signal is split to provide input to two or more channels claim 2 , each of the two or more channels includes a power amplifier to amplify a signal strength of the input and provide amplified output claim 2 , and the amplified output of each of the two or more channels is combined to provide the transmit signal.4. The radar system according to claim 1 , wherein the front-end portion includes a splitter to split the input signal as input to each of the two or more channels.5. The radar system according to claim 4 , wherein each of the two or more channels includes a multiplier to increase the frequency of the input to the channel and generate an ...

ALTIMETER WITH HIGH-RESOLUTION RADAR

In some examples, a system is configured to be mounted on a vehicle, the system including one or more phased-array radar devices configured to transmit first radar signals, receive first returned radar signals, transmit second radar signals, and receive second returned radar signals. In some examples, the system also includes processing circuitry configured to detect an object based on the first returned radar signals and determine an estimated altitude of the vehicle above a ground surface based on the second returned radar signals. 1. A system configured to be mounted on a vehicle , the system comprising: transmit first radar signals;', 'receive first returned radar signals;', 'transmit second radar signals; and', 'receive second returned radar signals; and, 'one or more phased-array radar devices configured to detect an object based on the first returned radar signals;', 'determine one or more receive beams based on the second returned radar signals;', 'steer the one or more receive beams by at least applying complex weighting to the one or more receive beams; and', 'determine an estimated altitude of the vehicle above a ground surface based on the second returned radar signals by steering a receive beam towards the ground surface., 'processing circuitry configured to2. The system of claim 1 ,wherein the one or more phased-array radar devices includes a single phased-array radar device, position the single phased-array radar device in a first orientation relative to the vehicle; and', 'position the single phased-array radar device in a second orientation relative to the vehicle; and, 'wherein the system further comprises a mechanical element configured to transmit the first radar signals while the single phased-array radar device is positioned in the first orientation;', 'receive the first returned radar signals while the single phased-array radar device is positioned in the first orientation;', 'transmit the second radar signals while the single phased-array ...

Doppler motion sensor device with high isolation between antennas

A Doppler motion sensor device is used for detecting a motion of an object. The Doppler motion sensor device includes a first antenna and a second antenna. The first antenna is used to transmit or receive a first wireless signal. The second antenna is used to transmit or receive a second wireless signal. A first straight line passing through a first feed-in point and a first middle point of the first antenna is orthogonal to a second straight line passing through a second feed-in point and a second middle point of the second antenna. One of the first wireless signal and the second wireless signal is a transmission signal. The transmission signal is reflected by the object to form the other one of the first wireless signal and the second wireless signal.

Proximity sensor and method for measuring the distance from an object

A proximity sensor measures the distance of a target and a method operates the proximity sensor. The proximity sensor emits a transmission signal as a free-field transmission wave, which is reflected at the target and as a free-field reflection signal is received by the proximity sensor as a reflection signal, wherein the determining of the distance is provided from the phasing of the reflection signal in relation to the phasing of the transmission signal. The proximity sensor shifts the phasing of the transmission signal chronologically.

DYNAMIC SUPPLY MODULATION POWER AMPLIFIER ARCHITECTURE FOR MILLIMETER WAVE APPLICATIONS

Examples disclosed herein relate to a dynamic supply modulation power amplifier architecture for millimeter wave applications. The architecture includes phase shifters coupled to a power input port, power amplifiers coupled to respective power output ports, variable gain amplifiers coupled to the phase shifters and to the power amplifiers and are configured to supply dynamically varying input power to the power amplifiers. The architecture includes a first look-up table coupled to the variable gain amplifiers to control the variable gain amplifiers. The architecture also includes a second look-up table coupled to the power amplifiers, where each of the power amplifiers is supply modulated by active drain voltage modulation controlled by the second look-up table and variable input power from the variable gain amplifiers. Other examples disclosed herein include a radar system for use in an autonomous driving vehicle and an analog beamforming antenna for millimeter wave applications. 1. A radar system for use in an autonomous driving vehicle , comprising an antenna module configured to radiate a transmission signal with an analog beamforming antenna in a plurality of directions based on phase shifts applied by a dynamic supply modulation power amplifier network and to generate radar data capturing a surrounding environment , wherein the dynamic supply modulation power amplifier network comprises:a phase shifter network comprising a plurality of phase shifters, andan amplifier network comprising a plurality of variable gain amplifiers coupled to the plurality of phase shifters and a plurality of power amplifiers coupled to the plurality of variable gain amplifiers, wherein the plurality of variable gain amplifiers is controlled by a first look-up table and the plurality of power amplifiers is controlled by a second look-up table.2. The radar system of claim 1 , wherein the plurality of power amplifiers is supply modulated by the second look-up table to compensate for ...

Radio frequency coupling and transition structure

A radio frequency transmission structure couples a RF signal between a first and a second radiating elements arranged at a first and a second sides of a first dielectric substrate, respectively. The RF coupling structure comprises first and second coupling structures. Each coupling structure has a hole arranged through the first dielectric substrate, a first electrically conductive layer arranged on a first wall of the hole to electrically connect a first and a second signal terminals, a second electrically conductive layer arranged on a second wall of the hole opposite to the first wall to electrically connect a first and a second reference terminals. The first electrically conductive layer is separated from the second electrically conductive layer. The first and second coupling structures are symmetrically arranged with the first electrically conductive layers closer to each other than the second electrically conductive layers are to each other.

MIMO RADAR DEVICE AND VEHICLE

There is provided a MIMO radar device including: a first array antenna configured to have L (L≥2) antenna elements disposed in one direction under a first rule; and a second array antenna configured to have M (M≥2) antenna elements disposed in a same direction as the one direction of the first array antenna under a second rule, and to have at least two of the M antenna elements provided across the first array antenna. 1. A MIMO radar device comprising:a first array antenna, wherein the first array antenna includes L (L≥2) antenna elements disposed in one direction under a first rule; anda second array antenna, wherein the second array antenna includes M (M≥2) antenna elements disposed in a same direction as the one direction of the first array antenna under a second rule, and wherein at least two of the M antenna elements of the second array antenna are outside of the first array antenna.2. The MIMO radar device according to claim 1 , wherein the first rule is to dispose the L antenna elements of the first array antenna in accordance with positions of a perfect Golomb ruler.3. The MIMO radar device according to claim 1 , wherein the first rule is to dispose the L antenna elements of the first array antenna in accordance with a 2-level nested array.4. The MIMO radar device according to claim 1 , wherein the first rule is to equidistantly dispose the L antenna elements of the first array antenna.5. The MIMO radar device according to claim 1 , wherein the second rule is to provide an upper limit to a distance between the at least two antenna elements of the second array antenna.6. The MIMO radar device according to claim 5 , wherein the upper limit is an upper limit for making a case of arrangement under the first rule or the second rule equivalent to a case in which the first array antenna or the second array antenna is provided with equidistant antenna elements.7. The MIMO radar device according to claim 1 , wherein one of the first array antenna and the second array ...

ANTENNA DEVICE

An antenna device includes a dielectric substrate, a ground plane, an antenna unit, a reflection unit, and an interruption unit. The interruption unit includes a plurality of second conductor patches disposed around the antenna unit, and a plurality of through-holes permitting electrical conduction between each of the second conductor patches and the ground plane, and interrupts a surface current flowing on a surface of the dielectric substrate. 1. An antenna device mounted in a bumper of a vehicle , the antenna device comprising:a dielectric substrate;a ground plane formed on one surface of the dielectric substrate and configured to function as an antenna ground surface;an antenna unit formed on another surface of the dielectric substrate and including an antenna pattern configured to function as an array antenna;a reflection unit including a plurality of first conductor patches disposed around the antenna unit and configured to function as a reflection plate, the reflection unit being configured to reflect an incident wave in a direction different from a direction of a radiation wave radiated from the antenna unit; andan interruption unit including a plurality of second conductor patches and a plurality of through-holes and configured to interrupt a surface current flowing on a surface of the dielectric substrate, the plurality of second conductor patches being disposed around the antenna unit, the plurality of through-holes permitting electrical conduction between each of the plurality of second conductor patches and the ground plane.2. The antenna device according to claim 1 , whereinthe interruption unit is installed in a polarization direction of a radio wave transmitted and received by the antenna unit with respect to the antenna unit.3. The antenna device according to claim 2 , whereina portion of the reflection unit is installed opposite the antenna unit with the interruption unit therebetween.4. The antenna device according to claim 1 , whereinthe ...

Antenna, radar apparatus and signal processing method

There is provided an antenna. A third transmission antenna is provided at a position shifted in a short direction of a first transmission antenna. A second transmission antenna is provided at a position between the first and third transmission antennas so that a portion of the second transmission antenna in a longitudinal direction is overlapped with a portion of the first and third transmission antennas in the longitudinal direction. A fourth transmission antenna is provided at a position point-symmetrical with respect to the position of the second transmission antenna, about the position of the third transmission antenna. A plurality of reception antennas are provided so that a portion of each of the reception antennas in the longitudinal direction is overlapped with a portion of the second transmission antenna in the longitudinal direction.

RADAR APPARATUS MOUNTING ASSEMBLY

A radar apparatus mounting assembly in accordance with embodiments of the present disclosure can protect a radar apparatus from an impact applied to a vehicle and prevent a corresponding detection area from being changed by allowing a bracket installed in the vehicle in combination with the radar apparatus to be provided with an elastic structure. 1. A radar apparatus mounting assembly comprising:a radar apparatus; anda bracket including a rear portion facing a rear surface of the radar apparatus, and a first elastic portion bent from the rear portion and coupled to the radar apparatus, and installed in a vehicle.2. The radar apparatus mounting assembly according to claim 1 , wherein the bracket is made of a metal material or a plastic material including carbon nanotubes.3. The radar apparatus mounting assembly according to claim 1 , wherein the bracket includes a front portion which is opened to which a radome of the radar apparatus faces.4. The radar apparatus mounting assembly according to claim 1 , wherein the bracket includes a lateral portion protruding from an edge of the rear portion and surrounding the radar apparatus.5. The radar apparatus mounting assembly according to claim 2 , wherein the bracket includes a fixing portion protruding from an exterior of the lateral portion and coupled to the vehicle.6. The radar apparatus mounting assembly according to claim 4 , wherein the lateral portion includes an opening portion in which a wall protruding from the rear portion is stepped and recessed claim 4 , and in which a connector of the radar apparatus is accommodated.7. The radar apparatus mounting assembly according to claim 1 , wherein the rear portion is spaced apart from the rear surface of the radar apparatus.8. The radar apparatus mounting assembly according to claim 1 , wherein the rear portion includes a first elongated hole formed at the rear side of the first elastic portion.9. The radar apparatus mounting assembly according to claim 1 , wherein the ...

APPARATUS AND METHOD FOR SYNCHRONIZING POWER CIRCUITS WITH COHERENT RF SIGNALS TO FORM A STEERED COMPOSITE RF SIGNAL

An apparatus has a Radio Frequency (RF) signal generator to produce RF signals phase shifted relative to one another in accordance with RF frequency waveform parameters. Amplifier chains process the RF signals to produce channels of amplified RF signals. Each amplifier chain has amplifiers and at least one amplifier has a tunable gate voltage synchronized with the RF signals. 1. An apparatus , comprising:a Radio Frequency (RF) signal generator to produce RF signals phase shifted relative to one another in accordance with RF frequency waveform parameters; andamplifier chains to process the RF signals to produce channels of amplified RF signals, wherein each amplifier chain has amplifiers and wherein at least one amplifier has a tunable gate voltage synchronized with the RF signals.2. The apparatus of wherein each amplifier chain has a serial sequence of solid state amplifiers each of which has a tunable gate voltage.3. The apparatus of wherein the tunable gate voltage is an amplifier on set point that is derived from an automatic calibration operation.4. The apparatus of wherein the at least one amplifier has a capacitance that is tuned to an on set point for the at least one amplifier.5. The apparatus of wherein the at least one amplifier has a gate voltage tuned based on sensor feedback from the at least one amplifier.6. The apparatus of wherein an offset voltage of a plurality of gate voltage slave circuits is tuned and controlled by a central master power gating circuit.7. The apparatus of further comprising a central computer to produce the Radio Frequency (RF) waveform parameters.8. The apparatus of further comprising an antenna array to broadcast the channels of amplified RF signals as a steered composite RF signal with Megawatts of radiated power.9. The apparatus of wherein the steered composite RF signal is pulsed for less than 1 millisecond.10. The apparatus of wherein the steered composite RF signal has a frequency of approximately 1 GHz.11. The apparatus ...

Radar system for registering the environment for a motor vehicle and a circuit board for such a radar system

The disclosure relates to a radar system for registering the environment for a motor vehicle, with a circuit board includes a wave termination with a termination line, a signal line connected to it for the transmission of a high frequency signal, and a first substrate layer which is produced from a material with a first loss factor. The radar system also includes a first tier attached onto the first substrate layer, which includes the signal line, a second substrate layer which is produced from a second material with a second loss factor, which is greater than the first loss factor, and a second tier applied to the second substrate layer, which includes the termination line. Additionally, the disclosure relates to a circuit board for such a radar system.

CONFIGURABLE RADAR TILE ARCHITECTURE

A configurable phased array tile is disclosed including an aperture assembly having a plurality of aperture assembly connectors, a backplane assembly having a plurality of backplane assembly connectors, and a plurality of vertical transmit cards mounted to a corresponding first plurality of aperture assembly connectors and a corresponding first plurality of backplane assembly connectors. The plurality of vertical transmit cards each include a plurality of transmit channels including at least one high power transmit amplifier for powering at least one radiating element mounted to the aperture assembly. 1. A configurable phased array tile , comprising:an aperture assembly having a plurality of aperture assembly connectors;a backplane assembly having a plurality of backplane assembly connectors; anda plurality of vertical transmit cards mounted to a corresponding first plurality of aperture assembly connectors and a corresponding first plurality of backplane assembly connectors;wherein the plurality of vertical transmit cards each include at least one transmit channel including at least one high power transmit amplifier for powering at least one radiating element connected to the aperture assembly.2. The configurable phased array tile of claim 1 , further comprising a plurality of vertical receive cards mounted to a corresponding second plurality of aperture assembly connectors and a corresponding second plurality of backplane assembly connectors claim 1 , each of the plurality of vertical receive cards including a plurality of receive channels.3. The configurable phased array tile of claim 1 , wherein the backplane assembly includes a plurality of removable daughter card assemblies including a controller daughter card assembly and a power supply daughter card assembly.4. The configurable phased array tile of claim 1 , wherein each of the plurality of vertical transmit cards includes a heat sink mounted to a side of the vertical transmit card to draw heat from the at ...

RADAR DEVICE

A radar device includes a radar transmitting circuit that transmits radar signals from a transmission array antenna, and a radar receiving circuit that receives returning wave signals, where the radar signals have been reflected at a target, from a receiving array antenna. One of the transmitting array antenna and the receiving array antenna includes multiple first antennas of which phase centers are laid out along a first axis direction. The other of the transmitting array antenna and the receiving array antenna includes multiple second antennas of which phase centers are laid out at a second spacing along a second axis direction that is different from the first axis direction. The multiple first antennas include multiple antennas of which the phase centers are laid out at a first spacing, and multiple antennas of which the phase centers are laid out at a third spacing that is different from the first spacing. 1. A radar device , comprising:a radar transmitting circuit that transmits radar signals from a transmitting array antenna; anda radar receiving circuit that receives returning wave signals, where the radar signals have been reflected at a target, from a receiving array antenna,wherein one of the transmitting array antenna or the receiving array antenna includes a plurality of first antennas of which phase centers are laid out along a first axis direction,wherein the plurality of first antennas include antennas in which the phase centers are laid out at a first integer multiple of a first spacing and antennas in which the phase centers are laid out at a second integer multiple of the first spacing, wherein the second integer multiple is different from the first integer multiple,wherein another of the transmitting array antenna or the receiving array antenna includes a plurality of second antennas of which phase centers are laid out at an integer multiple of a second spacing along a second axis direction that is different from the first axis direction, and a ...

FORWARD SENSING SYSTEM FOR VEHICLE

A forward sensing system for a vehicle includes a radar sensor and an image sensor housed in a self-contained unit disposed behind and attached at the vehicle windshield. A control includes an image processor that has an image processing chip that processes image data captured by the image sensor to detect an object of interest present exterior of the vehicle. The control, responsive at least in part to processing of captured image data and to sensing by the radar sensor, determines that a potentially hazardous condition exists in a path of forward travel of the vehicle. The radar sensor and the image sensor collaborate in a way that enhances sensing capability of the sensing system. Responsive to determination that the object of interest is in the path of forward travel of the vehicle, the control may at least in part control a driver assistance system of the vehicle. 1. A forward sensing system for a vehicle , said forward sensing system comprising:a radar sensor disposed within an interior cabin of a vehicle equipped with said forward sensing system;wherein said radar sensor has a sensing direction forward of the equipped vehicle;wherein said radar sensor transmits at a frequency of at least 60 GHz;wherein said radar sensor utilizes digital beam forming;an image sensor disposed within the interior cabin of the equipped vehicle behind a windshield of the equipped vehicle;wherein said radar sensor and said image sensor are housed in a self-contained unit disposed behind and attached at the windshield of the equipped vehicle;wherein said self-contained unit attaches at the windshield of the equipped vehicle and is removable therefrom as a unit;wherein the windshield of the equipped vehicle comprises an opaque layer where said self-contained unit is disposed behind the windshield of the equipped vehicle;wherein the opaque layer comprises a light-transmitting aperture, and wherein, with said self-contained unit attached at the windshield of the equipped vehicle, said ...

Radar sensor system and method for producing a radar sensor system

A radar sensor system is described. The radar sensor system includes: at least two HF components each having at least one antenna for transmitting and/or receiving radar waves, and each having at least one antenna controller for operating the at least one antenna. The radar sensor system also includes a synchronization line by way of which the HF components are functionally connected, a length of the synchronization line being such that a detected target is representable in a baseband as a bin pair, the bins of the bin pair being offset from one another by a defined extent.

RADAR DEVICE, SPECIFICALLY FOR A VEHICLE

A radar device for a vehicle is provided, comprising a housing with a first housing part and a second housing part (). The housing parts are connected to each other and form the boundaries of a closed recording space. The radar device also includes a circuit carrier accommodated within the recording space. The circuit carrier features at least one transmission antenna device for the transmission of radar beams, at least one receiving antenna device for receiving radar beams, and features high-frequency electronic circuit devices and low-frequency electronic circuit devices. At least one of the first of the two housing parts is a two-component plastic injection-molded parts, and one of the first of the two components has at least a three times higher thermal conductivity than a second one of the two components. 1. A radar device for a vehicle , the radar device comprising:a housing with a first housing part and a second housing part, where the first and second housing parts are connected to each other and form boundaries of a closed recording space,a circuit carrier accommodated within the recording space, where the circuit carrier includes at least one transmission antenna device for the transmission of radar beams and at least one receiving antenna device for receiving radar beams,wherein the circuit carrier includes high-frequency electronic circuit devices and low-frequency electronic circuit devices,wherein at least one of the first and second housing parts is a two-component plastic injection-molded part, where one component of the two-component plastic injection molded part has at least a three times higher thermal conductivity than a second one of the two components.2. The radar device in accordance with claim 1 , wherein a first area formed by the first components and a second area formed by the second components interlock.3. The radar device in accordance with wherein the first area is embedded in the second area.4. The radar device in accordance with claim ...

Radio wave transmissive cover

The radius r, the minimum dimension c, and the width w are determined based on Expressions 1 to 3 such that the frequency frmin is in a range from 70 GHz to 80 GHz and that the index value Q is in a range from −15 to −5.

Radar-based detection and identification for miniature air vehicles

An unmanned aerial vehicle (UAV) radar apparatus may be used in aircraft detection and avoidance. The radar apparatus may include an RF front end configured to transmit and receive RF signals, a filtering module coupled with the RF front end module that filters RF signals received at the RF front end module, and a target data processing module coupled with the filtering module that detects and identifies one or more targets based on the filtered RF signals. Avoidance procedures may be initiated based on the identification and detection of one or more targets.

FLEXIBLE ARTIFICIAL IMPEDANCE SURFACE ANTENNAS FOR AUTOMOTIVE RADAR SENSORS

A flexible, printable antenna for automotive radar. The antenna can be printed onto a thin, flexible substrate, and thus can be bent to conform to a vehicle body surface with compound curvature. The antenna can be mounted to the interior of a body surface such as a bumper fascia, where it cannot be seen but can transmit radar signals afield. The antenna can also be mounted to and blended into the exterior of an inconspicuous body surface, or can be made transparent and mounted to the interior or exterior of a glass surface. The antenna includes an artificial impedance surface which is tailored based on the three-dimensional shape of the surface to which the antenna is mounted and the desired radar wave pattern. The antenna can be used for automotive collision avoidance applications using 22-29 GHz or 76-81 GHz radar, and has a large aperture to support high angular resolution of radar data. 1. An automotive radar antenna comprising:a semiconductor chip configured to perform active functions of the antenna including amplification, phase shifting and switching of electrical signals;an array of metallic patches arranged to create an impedance pattern which generates a desired far-field radiation pattern from surface waves which are launched across the array of metallic patches, where the surface waves are provided by the electrical signals from the semiconductor chip;a flexible substrate; anda flexible metallic ground plane,where the antenna is mounted to a surface of a vehicle, and the array of metallic patches is designed to provide the desired far-field radiation pattern based on a shape of the antenna when mounted to the surface of the vehicle.2. The antenna of wherein the substrate includes a dielectric layer consisting of a material with a dielectric constant of 2.0 or higher claim 1 , the metallic ground plane is applied to a bottom surface of the dielectric layer claim 1 , and the array of metallic patches is applied to a top surface of the dielectric layer.3. ...

Sensors for a portable device

A portable sensing system device and method for providing microwave or RF (radio-frequency) sensing functionality for a portable device, the device comprising: a portable device housing configured to be carried by a user; and a sensing unit within said housing con-figured to characterize an object located in proximity to the portable system, said sensing unit comprising: a wideband electromagnetic transducer array said array comprising a plurality of electromagnetic transducers; a transmitter unit for applying RF signals to said electromagnetic transducer array; and a receiver unit for receiving coupled RF signals from said electromagnetic transducers array.

MULTI-LAYER, MULTI-STEERING ANTENNA SYSTEM FOR AUTONOMOUS VEHICLES

Examples disclosed herein relate to a multi-layer, multi-steering (MLMS) antenna array for autonomous vehicles. The MLMS antenna array includes a superelement antenna array layer comprising superelement subarrays, in which each superelement subarray includes radiating slots for radiating a transmission signal. The MLMS antenna array also includes a power divider layer coupled to the superelement antenna array layer and configured to serve as a feed to the superelement antenna array layer, in which the power divider layer is coupled to phase shifters that apply different phase shifts to transmission signals propagating to the superelement antenna array layer. The MLMS antenna array also includes a transition layer configured to couple the power divider layer and the superelement antenna array layer to the phase shifters through transition structures such as through-hole vias. Other examples disclosed herein include a radar system for use in an autonomous driving vehicle. 1. A multi-layer , multi-steering (MLMS) antenna array , comprising:a superelement antenna array layer comprising a plurality of superelement subarrays, wherein each superelement subarray of the plurality of superelement subarrays includes a plurality of radiating slots for radiating a transmission signal;a power divider layer coupled to the superelement antenna array layer and configured to serve as a feed to the superelement antenna array layer, the power divider layer being coupled to a plurality of phase shifters configured to apply different phase shifts to transmission signals propagating to the superelement antenna array layer; anda transition layer coupled to the power divider layer and configured to couple the power divider layer and the superelement antenna array layer to the plurality of phase shifters through a plurality of transition structures.2. The MLMS antenna array of claim 1 , wherein the transition layer is coupled to a connector claim 1 , and wherein the transition layer couples ...

ANTENNA APPARATUS

An element section includes at least one antenna element transmitting/receiving radio waves. Refracting sections refract unnecessary waves, which are radio waves emitted from the element section and traveling away from a detection area, in a rearward direction in which the unnecessary waves travel further than an antenna-formed surface having the at least one antenna element of the element section. 1. An antenna apparatus that transmits and receives radio waves to determine at least a distance to an object present within a predetermined detection area , the antenna apparatus comprising:an element section including at least one antenna element transmitting/receiving the radio waves; anda refracting section configured such that a traveling direction of unnecessary waves which is the radio waves emitted outside of the detection area from the element section to be refracted in a direction toward a rearward direction from an antenna-formed surface in which the antenna elements constituting the element section are formed.2. The antenna apparatus according to claim 1 , whereinthe refracting section is formed in a columnar shape having a fan-shaped cross-section;one of two rectangular flat surfaces of the refracting section is a lower surface, while another one is a side surface, and a side where the side surface touches a curved surface of the refracting section is an upper connecting side, while a side where the lower surface touches the curved surface is a lower connecting side;the side surface is perpendicular to the antenna-formed surface, and the upper connecting side is located at a boundary of the detection area; andthe curved surface is formed to have a greater degree of inclination to the antenna-formed surface with decreasing distance from the upper connecting side to the lower connecting side.3. The antenna apparatus according to claim 2 , whereinthe lower surface of the refracting section is located at a position flush with the antenna-formed surface.4. The ...

DIRECTIONAL RADAR TRANSMITTING AND RECEIVING SYSTEM

According to one embodiment of the present invention, a directional radar transmitting and receiving system includes: a main control chip is configured to determine whether a pulse wave signal output by a sensor circuit board meets a triggering condition wherein each of a plurality of evaluation processes is satisfied, the evaluation processes including: a first evaluation process including: determining whether a width and an amplitude of the pulse wave signal meets a threshold amplitude; and a second evaluation process including: comparing a shape of the pulse wave signal output by the sensor circuit board with a pre-stored default triggering signal shape; and determining that the second evaluation process is satisfied when the shape of the pulse wave signal matches the pre-stored default triggering signal shape. 1. A directional radar transmitting and receiving system comprising: a microwave oscillator;', 'a transmitting antenna; and', 'a receiving antenna; and, 'a sensor circuit board comprising a signal amplifying circuit;', 'a switch circuit; and', 'a main control chip configured to control the switch circuit;, 'a main control board comprisingwherein the microwave oscillator of the sensing board is configured to transmit a high-frequency microwave signal through the transmitting antenna,wherein the receiving antenna is configured to receive a frequency-shifted reflection of the high-frequency microwave signal transmitted through the transmitting antenna, apply frequency mixing and wave detection to the frequency-shifted reflection;', 'generate a pulse wave signal;', 'output the pulse wave signal to the signal amplifying circuit of the main control board; and', 'output the pulse wave signal from the signal amplifying circuit to the main control chip,, 'wherein the microwave oscillator is configured towherein the main control chip is configured to control the switch circuit, the switch circuit being configured to control a supply of power to one or more load ...

Antennas for high cross-polarization discrimination and security

Methods and systems for detection of threats in secure areas are disclosed. Microwaves are transmitted into high traffic areas and are reflected off or transmitted through targets within that area. The resulting signals are detected at receiving antennas which are designed to have a high cross-polarization discrimination (XPD) such that co- and cross-polarizations of the resulting signals are separable for further processing. The receiving antennas of the present invention comprise elliptical antennas with a double-ridged waveguide on the interior and a conically-shaped exterior. This particular design for the receiving antennas allows to technologically obtain an XPD of about 30 dB or more for solid angles measured from a receiving antenna's boresight (the main lobe axis), and formed by rotating the corresponding 30-degree planar angle around the main lobe axis, the solid angles measuring approximately 0.84 sr, in a frequency range between 9.5 and 20 GHz.

VECTOR SENSOR ARRAY SURFACE WAVE RADAR

System and methods for implementing a vector sensor array surface wave radar is provided. In one or more examples, the system can include a vector sensor array antenna that includes electromagnetic elements collectively configured to receive surface wave reflections generated by radar transmit antenna waves reflecting back from targets of interest. Once received by the vector sensor array, in one or more examples, the system can further include components that can process the incoming signal and use the incoming single to determine the location of one or more targets. In one or more examples, the vector surface array antenna can include three separate loop antennas that are arranged orthogonally to one another, and three dipole antennas that are arranged orthogonally to one another. In one or more examples, the vector surface array antenna can be configured to receive signals in the high frequency (HF) band. 1. An antenna configured to determine a location of a target using received surface waves , the antenna comprising:a plurality of loop antennas arranged orthogonally with respect to one another, and wherein the plurality of loop antennas are configured to generate one or more magnetic field readings; anda plurality of dipole antennas arranged orthogonally with respect to one another, and wherein the plurality of dipole antennas are configured to generate one or more electrical field readings, wherein each of the plurality of loop antennas and each of the plurality of dipole antennas are configured to provide a radar system with a separate signal channel that the radar system is configured to use to sense a received electromagnetic field from a target.2. The antenna of claim 1 , wherein the plurality of loop antennas comprises at least 3 separate loop antennas.3. The antenna of claim 1 , wherein the plurality of dipole antennas comprises at least 3 separate dipole antennas.4. The antenna of claim 1 , wherein the plurality of loop antennas and the plurality of ...

ANTENNA ARRAY HAVING A DIFFERENT BEAM-STEERING RESOLUTION IN ONE DIMENSION THAN IN ANOTHER DIMENSION

In an embodiment, an antenna includes a one-dimensional array of antenna cells, a signal feed, and signal couplers. The antenna cells are each spaced from an adjacent antenna cell by less than one half a wavelength at which the antenna cells are configured to transmit and to receive, are configured to generate an array beam that is narrower in a dimension than in an orthogonal dimension, and are configured to steer the array beam in the dimension. And the signal couplers are each configured to couple a respective one of the antenna cells to the signal feed in response a respective control signal having an active level. For example, the antenna cells can be arranged such that a straight line intersects their geometric centers. 1. An antenna , comprising: each spaced from an adjacent antenna cell by less than one half a wavelength at which the antenna cells are configured to transmit and to receive,', 'configured to generate an array beam that is narrower in a dimension than in an orthogonal dimension, and', 'configured to steer the array beam in the dimension;, 'a first one-dimensional array of antenna cells'}a first signal feed; andfirst signal couplers each configured to couple a respective one of the antenna cells to the signal feed in response a respective control signal having an active level.2. The antenna of wherein at least one of the antenna cells is configured to generate a cell beam that is narrower in the orthogonal dimension than in the dimension.3. The antenna of wherein at least one of the antenna cells includes:a geometrical center; anda phase center that is coincident with the geometrical center.4. The antenna of wherein at least one of the antenna cells includes:a geometrical center; anda phase center that is spaced from the geometrical center.5. The antenna of claim 1 , further comprising:a layer; and a geometrical center disposed in the layer, and', 'a phase center spaced from the layer., 'wherein at least one of the antenna cells includes'}6. The ...

RADAR AND ANTENNA BUILT IN RADAR

A radar includes a transmitter antenna unit that includes multiple transmitter antennas; a receiver antenna unit that includes a first receiver antenna group including multiple first receiver antennas and multiple second receiver antennas arranged at a first horizontal interval and a second receiver antenna group including multiple third receiver antennas arranged at one or more second horizontal intervals; a transceiver that transmits sending signals through the transmitter antenna unit and receives returning signals reflected from a target object trough the receiver antenna unit; and a processing unit that derives information about the target object by processing the received returning signals. 1. A radar , comprising:a transmitter antenna unit that includes multiple transmitter antennas;a receiver antenna unit that includes a first receiver antenna group including multiple first receiver antennas and multiple second receiver antennas arranged at a first horizontal interval and a second receiver antenna group including multiple third receiver antennas arranged at one or more second horizontal intervals;a transceiver that transmits sending signals through the transmitter antenna unit and receives returning signals reflected from a target object trough the receiver antenna unit; anda processing unit that derives information about the target object by processing the received returning signals.2. The radar of claim 1 ,wherein the multiple transmitter antennas are arranged at a vertical interval, of which size is equal to a size of the first horizontal interval.3. The radar of claim 2 , further comprising:a virtual receiver antenna forming unit that forms one or more virtual receiver antenna groups arranged in a same horizontal direction as the first receiver antenna group and the second receiver antenna group and having a vertical offset of the vertical interval when multiple-input multiple-output processing is performed through the multiple transmitter antennas ...

INSTALLATION STRUCTURE FOR VICINITY INFORMATION DETECTION SENSOR

An installation structure for a vicinity information detection sensor includes the vicinity information detection sensor and a vibration absorbing member. The vicinity information detection sensor includes a detector attached to a vehicle inner side of an outer panel of a vehicle body and configured to radiate electromagnetic waves that function as radar waves that detect vicinity information of a vehicle, and a motor provided in the detector and configured to change a radiation direction of the electromagnetic waves. The vibration absorbing member is placed between the outer panel and the vicinity information detection sensor. 1. An installation structure for a vicinity information detection sensor , comprising: a detector attached to a vehicle inner side of an outer panel of a vehicle body, and configured to radiate electromagnetic waves functioning as radar waves that detect vicinity information of a vehicle, and', 'a motor provided in the detector and configured to change a radiation direction of the electromagnetic waves; and, 'the vicinity information detection sensor that includes'}a vibration absorbing member placed between the outer panel and the vicinity information detection sensor.2. The installation structure for the vicinity information detection sensor according to claim 1 , whereinthe vicinity information detection sensor is attached to the outer panel via a retainer, the retainer being fixed to the vicinity information detection sensor and including an elastic engaging piece that engages with the outer panel.3. The installation structure for the vicinity information detection sensor according to claim 2 , whereinthe vibration absorbing member is placed between the vicinity information detection sensor and the retainer.4. The installation structure for the vicinity information detection sensor according to claim 2 , whereinthe retainer is fastened to the vicinity information detection sensor with a bolt, via an elastic member.5. The installation ...

FLEXIBLE RADAR SUPPORT FOR ABSORBING VIBRATION DEVIATION

A flexible radar support for absorbing vibration deviation comprises a support base and a support top cover that are engaged with each other in an interlocking manner. A housing space for arranging a radar is formed between the support base and the support top cover. The support base includes: a centrally arranged base center, and a base edge circumferentially arranged around the base center. The base edge and the base center are connected through four flexible structures that form U-shaped cantilever beams protruding towards the support top cover. With the flexible radar support provided, and with the design of U-shaped flexible structures, where an automobile body vibrates at a large amplitude, the flexible radar support can still absorb swaying in the up and down, and left and right directions during the course of driving, thereby reducing the impact of the automobile body's vibrations on the detection precision of a radar. 1. A flexible radar support for absorbing vibration deviation , characterized in that , it comprises a support base and a support top cover that are engaged with each other in an interlocking manner , a housing space for arranging a radar being formed between the support base and the support top cover , the support base comprising: a centrally arranged base center , and a base edge circumferentially arranged around the base center , the base edge and the base center being connected through four flexible structures that form U-shaped cantilever beams protruding towards the support top cover.2. The flexible radar support according to claim 1 , wherein the four U-shaped cantilever beams are symmetrically arranged in four directions of up claim 1 , down claim 1 , left claim 1 , and right directions claim 1 , respectively.3. The flexible radar support according to claim 1 , wherein four corner regions between the base edge and the base center are hollowed out and disconnected.4. The flexible radar support according to claim 3 , wherein first ...

WAVEGUIDE DEVICE, AND ANTENNA DEVICE INCLUDING THE WAVEGUIDE DEVICE

A waveguide device includes an electrical conductor including an electrically conductive surface, a waveguide extending alongside the electrically conductive surface, and an artificial magnetic conductor extending on both sides of the waveguide. The waveguide includes a first portion extending in one direction, and at least two branches extending from one end of the first portion, the at least two branches including a second portion and a third portion that extend in mutually different directions. A waveguide defined by the electrically conductive surface, the waveguide surface, and the artificial magnetic conductor includes an enlarged gap portion at which a gap between the electrically conductive surface and the waveguide surface is locally enlarged. 1. A waveguide device comprising:an electrical conductor including an electrically conductive surface;a waveguide including an electrically-conductive waveguide surface opposed to the electrically conductive surface, and extending alongside the electrically conductive surface; andan artificial magnetic conductor extending on two sides of the waveguide; whereinthe waveguide includes a first portion extending in one direction and at least two branches extending from one end of the first portion, the at least two branches including a second portion and a third portion that extend in mutually different directions;the waveguide defined by the electrically conductive surface, the waveguide surface, and the artificial magnetic conductor includes an enlarged gap portion at which a gap between the electrically conductive surface and the waveguide surface is locally enlarged;a size of the gap between the electrically conductive surface and the waveguide surface is greater at the enlarged gap portion than at any site on the waveguide that is adjacent to the enlarged gap portion, and is smaller than a distance between the electrically conductive surface and a root of the waveguide; andat least a portion of a junction at which the ...

DIRECTIONAL RADAR TRANSMITTING AND RECEIVING SENSOR BOARD

A sensor board for transmitting and receiving directional radar signals including a non-conductive substrate having a plurality of first recesses distributed at intervals along at least one edge of the non-conductive substrate; a microwave oscillator including an RC oscillator circuit and a transistor Q an anti-coupling foil; a first filter circuit configured to filter an input power Vcc; a second filter circuit configured to filter an output signal; a receiving antenna; and a transmitting antenna including a first wire laid over the plurality of first recesses along the edge of the non-conductive substrate; and a plurality of first electrically conductive protrusions embedded in the first recesses, the first wire electrically connecting the first electrically conductive protrusions. 1. A sensor board for transmitting and receiving directional radar signals comprising:a non-conductive substrate having a plurality of first recesses distributed at intervals along at least one edge of the non-conductive substrate; an RC oscillator circuit comprising a plurality of capacitors connected in parallel between ground and an input power Vcc; and', {'b': '1', 'a transistor Q;'}], 'a microwave oscillator comprising{'b': '1', 'an anti-coupling foil arranged on the non-conductive substrate, wherein one end of the anti-coupling foil is connected to the base of the transistor Q, and the other end of the anti-coupling foil is floating;'}a first filter circuit configured to filter input power Vcc;a second filter circuit configured to filter an output signal;a receiving antenna; and a first wire laid over the plurality of first recesses along the edge of the non-conductive substrate; and', 'a plurality of first electrically conductive protrusions embedded in the first recesses, the first wire electrically connecting the first electrically conductive protrusions,, 'a transmitting antenna comprising{'b': 1', '1', '1, 'wherein the transmitting antenna is connected to the collector of the ...

VEHICLE RADAR SYSTEM WITH T-SHAPED SLOT ANTENNAS

A vehicular radar sensing system includes a radar sensor configured to be disposed at a vehicle. The radar sensor includes a plurality of antennas that include a plurality of transmitting antennas that transmit radio signals and a plurality of receiving antennas that receive radio signals. The radar sensor provides radar data to a processor that processes the provided radar data to detect an object present in the field of sensing of the radar sensor. At least some antennas of the plurality of antennas include waveguides having T-shaped slots, with each T-shaped slot having a longitudinal portion and a transverse portion that extends transverse from the longitudinal portion, and with a width of the transverse portion being less than a length of the longitudinal portion. 1. A vehicular radar sensing system , the vehicular radar sensing system comprising:a radar sensor configured to be disposed at a vehicle equipped with the vehicular radar sensing system;wherein the radar sensor comprises a plurality of antennas;wherein the plurality of antennas of the radar sensor comprises a plurality of transmitting antennas that transmit radio signals;wherein the plurality of antennas of the radar sensor comprises a plurality of receiving antennas that receive radio signals;wherein the radar sensor provides radar data to a processor;wherein the processor processes the provided radar data to detect an object present in a field of sensing of the radar sensor; andwherein at least some antennas of the plurality of antennas comprise waveguides having T-shaped slots, and wherein each T-shaped slot comprises a longitudinal portion and a transverse portion that extends transverse from the longitudinal portion, and wherein a width of the transverse portion is less than a length of the longitudinal portion.2. The vehicular radar sensing system of claim 1 , wherein each T-shaped slot provides a greater directive radiation pattern than a rectangular slot shaped antenna.3. The vehicular radar ...