Transceiverschaltung und Verfahren zur Bereitstellung von Lokaloszillatorsignalen in einer Transceiverschaltung

Eine Transceiverschaltung (1) umfasst einen Sendepfad (14) sowie zumindest zwei Empfangsfade (11, 12), die jeweils eine Frequenzumsetzeinrichtung (112, 145) mit einem Lokaloszillatoreingang enthalten. Weiterhin ist eine erste, eine zweite und eine dritte Oszillatorschaltung (16, 17, 18) sowie eine programmierbare Frequenzteilerschaltung (15) vorgesehen. Die Ausgänge der Oszillatorschaltungen (16, 17, 18) sind mit jeweils einem Eingang der programmierbaren Frequenzteilerschaltung (15) verbunden. Die Frequenzteilerschaltung (15) enthält drei Ausgänge, die jeweils mit einem Lokaloszillatoreingang des Sendepfades (14) und der beiden Empfangspfade (11, 12) verbunden sind. Erfindungsgemäß ist die Frequenzteilerschaltung zur Frequenzteilung eines an einem Eingang anliegenden Signals und zur Abgabe des frequenzgeteilten Signals an einen der drei Ausgänge ausgebildet. Mit der programmierbaren Frequenzteilerschaltung (15) lassen sich so Signale an den drei Eingängen der Frequenzteilerschaltung (15 ...

Polarmodulatoranordnung und Polarmodulationsverfahren

Eine Polarmodulatoranordnung weist einen ersten und einen zweiten Knoten zum Empfangen eines Digitalsignals mit einer ersten und einer zweiten Komponente auf, die einer Digitalamplitudenkomponente und einer Digitalphasenkomponente entsprechen. Ein Digitalinterpolationsfilter erzeugt eine interpolierte erste Komponente durch Interpolieren und Filtern der ersten Komponente. Ein polar moduliertes Hochfrequenzsignal wird durch ein Kombinationselement als eine Funktion der interpolierten ersten Komponente und der zweiten Komponente erzeugt.

DEVICE TRANSMITTER-RECEIVER AND PROCESS OF TREATMENT Of a SIGNAL

Un dispositif émetteur-récepteur comprend une première voie de réception ayant une première borne (52b) et ayant un premier amplificateur de réception (62) ainsi qu'une deuxième voie de réception ayant une deuxième borne (52a) et ayant un deuxième amplificateur de réception (33) ainsi qu' ayant un dispositif convertisseur de fréquence (35a, 36a). Un dispositif de connexion commandable (49) est réalisé pour connecter une sortie du premier amplificateur de réception (62) à une entrée du dispositif convertisseur de fréquence (35a, 36a) dans la deuxième voie de signal.

Transmitting and receiving arrangement with interference signal suppression control

A transmitting and receiving arrangement is disclosed having a transmission path, a reception path, and a control device for suppression of interference signals which are produced by crosstalk from the transmission path to the reception path. The control device inputs correction signals that are derived from the transmission signals into the reception path at a point therein such that the interference signals are suppressed downstream from the point. The control device has a detector that detects the interference signals on the basis of characteristics of the transmission signals.

Circuit arrangement with improved decoupling

A circuit arrangement includes a component having a closed signal path, that closed signal path connected to a first port, a second port and at least a third port. The component has a directed signal flow of a signal applied to one of that ports. Such a coupling device can be connected to a transmitter and to a receiver path, respectively.

Circuit and method

Embodiments of the present invention create a circuit having a digital-to-time converter with a high-frequency input for receiving a high-frequency signal, a digital input for receiving a first digital signal, and a high-frequency output for the provision of a chronologically delayed version of the HF signal. In addition, the circuit has an oscillator arrangement for the provision of the high-frequency signal, having a phase-locked loop for adjusting a frequency of the high-frequency signal. The digital-to-time converter is designed to chronologically delay the received high-frequency signal based on the first digital signal received at its digital input.

Verstärkeranordnung und Verfahren zur Kompensation eines Signalanteils in einer Verstärkeranordnung

Es ist eine Verstärkeranordnung mit einer ersten Verstärkerstufe (4) und zumindest einer zweiten Verstärkerstufe (6) vorgesehen, wobei ein Eingang der zweiten Verstärkerstufe (6) mit dem Ausgang der ersten Verstärkerstufe (4) verbunden ist. Die erste Verstärkerstufe (4) sowie die zweite Verstärkerstufe (6) sind jeweils zur Verstärkung mit einem einstellbaren diskreten Verstärkungsfaktor ausgebildet. Weiterhin ist ein Rückführungspfad vorgesehen, der zwischen den Ausgang der zumindest einen zweiten Verstärkerschaltung (6) und den Eingang der ersten Verstärkerstufe (4) geschaltet ist. Der Rückführungspfad ist zur Erzeugung und Abgabe eines Signals an den Eingang der ersten Verstärkerstufe (4) zur Kompensation eines Offset-Signals am Ausgang der zumindest einen zweiten Verstärkerstufe (6) ausgebildet. Dieses Offset-Signal ist durch eine Einstellen des Verstärkungsfaktors der ersten und/oder der zweiten Verstärkerstufe hervorgerufen.

Verstärkeranordnung sowie Verfahren zum Kalibrieren einer Verstärkeranordnung

Es ist eine Verstärkeranordnung angegeben, welche zumindest zwei hintereinander geschaltete, programmierbare Verstärker (2, 3) umfaßt. Die Verstärker (2, 3) haben eine unterschiedliche Verstärker-Schrittweite. Außerdem ist ein Kalibrierpfad (5) vorgesehen, der den Ausgang des zweiten programmierbaren Verstärkers (3) auf den Programmiereingang des ersten oder zweiten programmierbaren Verstärkers (2, 3) rückführt. Der Kalibrierpfad (5) umfaßt einen Analog/Digital-Wandler (7) und ein Auswertungs- und Steuerglied (8). Damit ist es möglich, insbesondere bei Übergängen in der Verstärkung von einem Verstärkerblock auf einen anderen, auftretende Nichtidealitäten wegzukalibrieren. Die vorgeschlagene Verstärkeranordnung und das Verfahren zur Kalibrierung sind besonders zur Anwendung in Sende- und Empfangspfaden von zeitkontinuierlich arbeitenden Sendeempfängern geeignet.

Integrated transceiver circuit with low interference production and sensitivity

An integrated transceiver circuit has a reception path, which in turn has a mixer unit for demodulation of a received signal. An analog/digital converter unit is connected in the reception path downstream from the mixer unit. A first frequency divider is connected between the mixer unit and a voltage controlled oscillator in order to predetermine the demodulation frequency. A second frequency divider is connected between the oscillator and the analog/digital converter unit in order to predetermine the sampling frequency.

Vorrichtung und Verfahren zum Erzeugen eines Oszillatorsignals

Eine Vorrichtung weist ein auf einem mechanischen Resonator basierendes Oszillatormodul auf, das ein Lokaloszillatorsignal mit einer Frequenz von mehr als 700 MHz erzeugt. Ferner weist die Vorrichtung ein Digital-zu-Zeit-Wandler-Modul auf, das ein frequenzangepasstes Signal basierend auf dem Oszillatorsignal erzeugt.

Transceiver circuit and method for providing local oscillator signals in a transceiver circuit

A transceiver circuit includes a transmission path and also at least two reception paths, which in each case contain a frequency conversion device with a local oscillator input. A first, a second and a third oscillator circuit, and also a programmable frequency divider circuit are furthermore provided. The outputs of the oscillator circuits are connected to a respective input of the programmable frequency divider circuit. The frequency divider circuit contains three outputs connected in each case to a local oscillator input of the transmission path and the two transmission paths. According to one example of the invention, the frequency divider circuit is designed for frequency division of a signal present at an input and for outputting the frequency-divided signal to one of the three outputs. With the programmable frequency divider circuit, signals at the three inputs of the frequency divider circuit can thus be divided arbitrarily in terms of their frequency and be output at the outputs ...

SCHALTUNG UND VERFAHREN

Ausführungsbeispiele der vorliegenden Erfindung schaffen eine Schaltung mit einem Digital-zu-Zeit-Wandler aufweisend einen Hochfrequenzeingang zum Empfangen eines Hochfrequenzsignals, einen Digitaleingang zum Empfangen eines ersten Digitalsignals und einen Hochfrequenzausgang zum Bereitstellen einer zeitlich verzögerten Version des HF-Signals. Ferner weist die Schaltung eine Oszillatoranordnung zum Bereitstellen des Hochfrequenzsignals mit einer Phasenregelschleife zur Einstellung einer Frequenz des Hochfrequenzsignals auf. Der Digital-zu-Zeit-Wandler ist ausgebildet, um das empfangene Hochfrequenzsignal basierend auf dem an seinem Digitaleingang empfangenen ersten Digitalsignal zeitlich zu verzögern.

Sende-und Empfangsanordnung mit einer Regelung zur Störsignalunterdrückung

Sende- und Empfangsanordnung (30) mit einem Sendepfad (31), einem Empfangspfad (32) und einer Regelungseinrichtung zur Unterdrückung von durch Übersprechen aus dem Sende- (31) in den Empfangspfad (32) erzeugten Störsignalen, wobei die Regelungseinrichtung aus den Sendesignalen abgeleitete Korrektursignale derart an einem Punkt (35) in den Empfangspfad (32) einkoppelt, dass die Störsignale nach dem Punkt (35) unterdrückt sind, und wobei die Regelungseinrichtung einen Detektor (36) aufweist, der die Störsignale anhand von Eigenschaften der Sendesignale detektiert.

Verfahren zum Kalibrieren einer Verstärkeranordnung

Verfahren zum Kalibrieren einer Verstärkeranordnung, die zwei hintereinander geschaltete, in unterschiedlicher diskreter Schrittweite programmierbare Verstärker (2, 3) umfasst, mit den Schritten: Programmieren eines ersten vorbestimmten Verstärkungsfaktors durch Programmieren eines der beiden Verstärker (2), Einspeisen eines Testsignals in die Verstärkeranordnung (2, 3) und Messen des tatsächlichen Ausgangspegels (RSSI) der Verstärkeranordnung (2, 3), Programmieren eines zweiten vorbestimmten Verstärkungsfaktors durch Programmieren des anderen der beiden Verstärker (3), Einspeisen eines Testsignals in die Verstärkeranordnung (2, 3) und Messen des Ausgangspegels (RSSI) der Verstärkeranordnung (2, 3), Kalibrieren der Verstärkung der Verstärkeranordnung (2, 3) in Abhängigkeit der Ergebnisse der Messungen, wobei das Kalibrieren der Verstärkung der Verstärkeranordnung (2, 3) durch Programmieren der Verstärkung eines dritten Verstärkers (1) erfolgt, so dass ein Offset in der Verstärkung verschwindet ...

Schaltung und Verfahren

Es werden Implementierungen in Bezug auf Schaltungen mit einem Oszillator und einem Schalt-DC/DC-Umsetzer dargestellt.

DIRECT DIGITAL FREQUENCY GENERATION USING TIME AND AMPLITUDE

This application discusses, among other things, apparatus and methods for sharing a local oscillator between multiple wireless devices. In certain examples, an apparatus can include a central frequency synthesizer configured to provide a central oscillator signal having a first frequency, a first transmitter, the first transmitter including a first transmit digital-to-time converter (DTC) configured to receive the central oscillator signal and to provide a first transmitter signal having a second frequency, and a first receiver, the first receiver including a first receive DTC configured to receive the central oscillator signal and to provide a first receiver signal having a first receive frequency. 1. An apparatus comprising:an oscillator configured to provide an oscillator signal having an oscillator frequency;a first transmitter including a first transmit digital-to-time converter (DTC) configured to receive the oscillator signal and to provide a first transmit signal having a first transmit frequency;a first receiver, the first receiver configured to receive the oscillator signal and to provide a first receiver signal having a first receive frequency; andwherein each of the oscillator frequency, the first transmit frequency and the first receive frequency is a different frequency than the others.2. The apparatus of claim 1 , wherein the first transmitter includes a modulator configured to receive first modulation information and to provide the first transmit signal using the modulation information.3. The apparatus of claim 2 , wherein the modulator includes a Cartesian modulator configured to receive Cartesian symbols and to provide the first transmit signal using the Cartesian symbols.4. The apparatus of claim 2 , wherein the first transmit DTC is the modulator and is configured to receive phase modulation information and to provide the first transmit signal using the phase modulation information.5. The apparatus of claim 1 , wherein the first transmit DTC is ...

Transmitter and method of transmitting a signal

A transmitter includes an output. A coupler receives at least a derivative of the output and provides a feedback signal. A demodulator receives the feedback signal and performs an additive mixing to demodulate the feedback signal.

High Efficiency Modulation

This disclosure is directed to techniques for increasing the power efficiency of a modulator.

Sende-und Empfangsanordnung mit einer Regelung zur Störsignalunterdrückung

Sende- und Empfangsanordnung (30), insbesondere für den Mobilfunk, mit – einem Frequenzgenerator (8, 9) zur Erzeugung einer Umsetzerfrequenz, – einem Sendepfad (31) zum Aussenden von Signalen mit einer ersten Frequenzumsetzereinrichtung (6) zur Umsetzung der auszusendenden Signale aus einem ersten Frequenzband in ein zweites Frequenzband mittels der Umsetzerfrequenz, – einem Empfangspfad (32) zum Empfangen von Signalen, und – einer Regelungseinrichtung zur Unterdrückung von durch Übersprechen aus dem Sendepfad (31) in den Empfangspfad (32) erzeugten Störsignalen, wobei die Regelungseinrichtung Korrektursignale, die von über den Sendepfad (31) auszusendenden Signalen abgeleitet sind, an einem Einkoppelungspunkt (35) in den Empfangspfad (32) so einkoppelt, dass die Störsignale nach dem Einkoppelungspunkt (35) unterdrückt sind, und eine Detektoreinrichtung (36) zur Detektion der in dem Empfangspfad (32) nach dem Einkoppelungspunkt (35) vorhandenen Störsignale aufweist, wobei die Detektoreinrichtung (36) eine zweite Frequenzumsetzereinrichtung (37) zur Umsetzung der in dem Empfangspfad (32) nach dem Einkoppelungspunkt (35) vorhandenen... Transmitting and receiving arrangement (30), in particular for mobile communications, with A frequency generator (8, 9) for generating a converter frequency, A transmission path (31) for transmitting signals with a first frequency converter device (6) for converting the signals to be transmitted from a first frequency band to a second frequency band by means of the converter frequency, A receive path (32) for receiving signals, and - A control device for suppressing crosstalk from the transmission path (31) in the receiving path (32) generated interference signals, wherein the control means injects correction signals derived from signals to be transmitted via the transmission path (31) at a coupling point (35) into the reception path (32) so that the interference signals are suppressed after the coupling point (35), and a detector means ...

Tranceiveranordnung und Verfahren zum Verarbeiten eines Signals

Eine Transceiveranordnung umfasst einen ersten Empfangspfad mit einem ersten Anschluss (52b) und einem ersten Empfangsverstärker (62) sowie einen zweiten Empfangspfad mit einem zweiten Anschluss (52a) und einem zweiten Empfangsverstärker (33) sowie einer Frequenzumsetzeinrichtung (35, 36, 35a, 36a). Eine steuerbare Koppeleinrichtung (49, 49a) ist ausgeführt, einen Ausgang des ersten Empfangsverstärkers (62) mit einem Eingang der Frequenzumsetzeinrichtung (35, 36, 35a, 36a) im zweiten Signalpfad zu koppeln. Weiterhin umfasst die Transceiveranordnung eine Steuerschaltung (47, 47a), die zur Abgabe eines Steuersignals an die Koppeleinrichtung (49, 49a) für eine phasenrichtige Zusammenführung von vom ersten und zweiten Empfangsverstärker abgegebenen Signalen in Abhängigkeit eines von den Empfangspfaden zugeführten Signalen ausgeführt ist. Dadurch wird eine Empfangsdiversität erreicht, wobei einerseits zusätzliche externe Komponenten nicht mehr notwendig sind und andererseits eine ausreichende ...

APPARATUS AND A METHOD FOR PROVIDING OSCILLATOR SIGNALS

An apparatus for providing oscillator signals includes a first digital-to-time converter module configured to generate a first oscillator signal based on a first adapted input signal, a second digital-to-time converter module configured to generate a second oscillator signal; and a first processing module configured to generate the first adapted input signal of the first digital-to-time converter module by adding noise to a first input signal. 1. An apparatus for providing oscillator signals , comprising:a first digital-to-time converter module configured to generate a first oscillator signal based on a first adapted input signal;a second digital-to-time converter module configured to generate a second oscillator signal; anda first processing module configured to generate the first adapted input signal of the first digital-to-time converter module by adding noise to a first input signal.2. The apparatus according to claim 1 , wherein the first input signal is a digital signal comprising successive control bit sequences for controlling a variable temporal delay of the first digital-to-time converter module.3. The apparatus according to claim 2 , wherein the added noise changes at least one bit of the control bit sequences of the first input signal comprising information for setting a fine temporal delay.4. The apparatus according to claim 2 , wherein the added noise changes one or more least significant bits of the control bit sequences claim 2 , wherein the least significant bits are provided to control a fine temporal delay module of the first digital-to-time converter module.5. The apparatus according to claim 2 , wherein the added noise changes one or more most significant bits of the control bit sequences claim 2 , wherein the most significant bits are provided to control a coarse temporal delay module of the first digital-to-time converter module.6. The apparatus according to claim 2 , wherein one or more least significant bits of the control bit sequences or ...

Transceiver mit Störsignalunterdrückung und Verfahren zur Störsignalunterdrückung

Ein Transceiver mit Störsignalunterdrückung weist einen Sendepfad (2) sowie einen Empfangspfad (3) auf. Der Sendepfad ist an einen Sendeverstärker (6) angeschlossen, dessen Ausgang mit einer Antenne (8) gekoppelt ist. Weiterhin ist die Antenne (8) auch an den Empfangspfad (3) angeschlossen. Erfindungsgemäß ist eine Kompensationsvorrichtung (4) vorgesehen, die mit einem Eingang des Empfangspfads gekoppelt ist. Weiterhin ist zwischen Ausgang des Sendepfads (2) und Eingang des Sendeverstärkers (6) ein Auskoppelelement (5) geschaltet, das mit einem Eingang der Kompensationsschaltung (5) verbunden ist. Ein Signalanteil eines Sendesignals wird vor einem Verstärken auf einen Ausgangspegel ausgekoppelt und über die Kompensationsschaltung (4) so an den Empfangspfad (3) geführt, dass ein übersprechender Sendesignalanteil dadurch kompensiert wird. Eine Kompensation erfolgt bevorzugt durch Detektion einer Leistung des empfangenen Signals und Anpassung einer Amplitude bzw. Phase des ausgekoppelten Signalanteils ...

Leistungssparende Technik für Digital-Zeit-Wandler

In diesem Dokument sind Vorrichtungen und Verfahren zum Reduzieren des Energieverbrauchs von Sendern auf Basis von Digital-Zeit-Wandlern (DTC) erörtert. In einem Beispiel kann ein drahtloses Gerät einen Digital-Zeit-Wandler (DTC), der so konfiguriert ist, um Phaseninformationen von einem Basisbandprozessor zu empfangen und ein erstes Modulationssignal zur Erzeugung eines drahtlosen Signals bereitzustellen, und einen Detektor beinhalten, der so konfiguriert ist, um eine Betriebsbedingung des drahtlosen Gerätes zu detektieren und als Reaktion auf eine Änderung der Betriebsbedingung einen Parameter des DTC einzustellen.

Eine Vorrichtung und ein Verfahren zum Erzeugen von Basisbandempfangssignalen

Eine Vorrichtung zum Erzeugen von Basisbandempfangssignalen umfasst ein erstes Analog-zu-Digital-Wandler-Modul, das ein erstes, digitales Hochfrequenzempfangssignal zumindest durch Abtasten eines ersten, analogen Hochfrequenzempfangssignals erzeugt, ein erstes, digitales Signalverarbeitungsmodul, das ein erstes Basisbandempfangssignal basierend auf dem ersten, digitalen Hochfrequenzempfangssignal erzeugt, ein zweites Analog-zu-Digital-Wandler-Modul, das ein zweites, digitales Hochfrequenzempfangssignal zumindest durch Abtasten eines zweiten, analogen Hochfrequenzempfangssignals erzeugt und ein zweites, digitales Signalverarbeitungsmodul, das ein zweites Basisbandempfangssignal basierend auf dem zweiten, digitalen Hochfrequenzempfangssignal erzeugt. Das erste, analoge Hochfrequenzempfangssignal weist erste Nutzdaten an einem ersten Empfangskanal auf, der einer ersten Trägerfrequenz zugeordnet ist, und das zweite, analoge Hochfrequenzempfangssignal weist zweite Nutzdaten an einem zweiten ...

Digital modulation

The present application relates to embodiments of methods and a device for digital modulation. In a first embodiment of the method, the following steps are executed: determining a polarity of the signal, providing an inverted carrier signal, providing an inverted signal by an inversion of the polarity of at least one portion of the signal, mixing the signal with the carrier signal when the signal has the first polarity, and mixing the inverted signal with the inverted carrier signal when the signal has the second polarity.

Integrated transceiver used in mobile communication systems has interface circuit with adjustable impedance

The integrated circuit transceiver circuit [3] has a receiver inputs [39.1,39.2] coupled to an interfacing network [50.1,...72.4] having an adjustable impedance. A control unit [43] is used to set the operating point of the impedance. The interfacing network has capacitors and inductances coupled to control switches.

SENDEANORDNUNG FÜR ZEITKONTINUIERLICHE DATENÜBERTRAGUNG

TRANSMITTING AND RECEIVING UNIT

PURPOSE: A transmitting and receiving unit suitable for a duplex type FDD(Frequency Division Duplex), TDD(Time Division Duplex) and an FDD having a variable frequency interval is provided to improve an integration and to reduce an energy consumption. CONSTITUTION: The transmitting and receiving unit, used in a UMTS(Universal Mobile Telecommunications System), comprises an intermediate frequency of a range of 0 to 0.5 MHz on the reception side and an intermediate frequency of 190 MHz on the transmission side. Thereby, operations by the FDD, the TDD and the FDD having a variable duplex frequency can be conducted. When one network provider can utilize only a small bandwidth, the unit can operate in the mode for saving energy, so as to need only a single local oscillator(L1) for a first mixer and second mixers(M1,M2). In this case, the intermediate frequency of 190 MHz of the transmission side can be deviated by ±5 or by ±10 MHz. © KIPO 2002 ...

Transmitting arrangement, transreceiver with a transmitting arrangement and method for signal processing

A transmitting arrangement includes a first signal input for supplying a frequency modulation signal, a second signal input for supplying an amplitude modulation signal, a phase-locked loop and an amplifying device. The latter is connected with a control connection to the second signal input. A signal input of the amplifying device is connected to the output of the phase-locked loop. A conversion device with a local-oscillator input is provided in a feedback path. The conversion device is constructed for splitting a signal, coupled out from an output of the amplifying device, into a first component and a second component with the aid of a local-oscillator signal. In this arrangement, the local-oscillator input is coupled to the output of the phase-locked loop.

Rückgekoppelter Polar-Empfänger für einen Modulator

Eine Linearisierung in einem Polar-Modulator (100) einer drahtlosen Kommunikationsvorrichtung wird beschrieben, um eine lineare Verstärkung und eine hohe Leistungseffizienz während einer Übertragung zu erzielen.

Integrated transceiver circuit, e.g. for mobile radio applications, has transmitter, receiver and amplifier/damper unit connected between output of transmitter and input of receiver

The integrated transceiver circuit has a transmitter (S), a receiver (E) and an amplifier/damper unit (41) connected between the output of the transmitter and the input of the receiver. The amplifier/damper unit is connected to the receiver input via a summer (42) and has an adjustable phase, adjustable gain/damping, an RC element and a varactor diode. An independent claim is also included for the following: (a) a compensation method for an inventive integrated transceiver circuit.

Hocheffizienzmodulation

Diese Offenbarung richtet sich auf Techniken zum Erhöhen der Leistungseffizienz eines Modulators.

Transceiver arrangement and method for processing a signal

A transceiver arrangement includes a first receive path including a first connection and a first receive amplifier, and a second receive path including a second connection, a second receive amplifier, and a frequency conversion device. The transceiver also includes a controllable coupling device configured to couple an output of the first receive amplifier to an input of the frequency conversion device on the second signal path, and a control circuit configured to provide a control signal to the coupling device for selectively combining signals delivered by the first and second receive amplifiers in the correct phase based on a parameter which is derived from a signal present at the first connection or second connection, or both. The parameter derived from the received signal represents whether a signal strength of the received signal or a signal quality of the received signal exceeds a first predetermined threshold.

Digital Modulation

The present application relates to embodiments of methods and a device for digital modulation. In a first embodiment of the method, the following steps are executed: determining a polarity of the signal, providing an inverted carrier signal, providing an inverted signal by an inversion of the polarity of at least one portion of the signal, mixing the signal with the carrier signal when the signal has the first polarity, and mixing the inverted signal with the inverted carrier signal when the signal has the second polarity.

Transceiver arrangement and method for processing a signal

A transceiver arrangement includes a first receive path with a first connection and a first receive amplifier, and a second receive path with a second connection, a second receive amplifier, and a frequency conversion device. A controllable coupling device is configured to couple an output of the first receive amplifier to an input of the frequency conversion device on the second signal path. Furthermore, the transceiver arrangement includes a control circuit configured to deliver a control signal to the coupling device for combining signals delivered by the first and second receive amplifierin the correct phase based on a signal supplied by the receive paths. This achieves receive diversity wherein, on the one hand, additional external components are no longer necessary.

Transceiver Arrangement and Method for Processing a Signal

A transceiver arrangement includes a first receive path including a first connection and a first receive amplifier, and a second receive path including a second connection, a second receive amplifier, and a frequency conversion device. The transceiver also includes a controllable coupling device configured to couple an output of the first receive amplifier to an input of the frequency conversion device on the second signal path, and a control circuit configured to provide a control signal to the coupling device for selectively combining signals delivered by the first and second receive amplifiers in the correct phase based on a parameter which is derived from a signal present at the first connection or second connection, or both. The parameter derived from the received signal represents whether a signal strength of the received signal or a signal quality of the received signal exceeds a first predetermined threshold.

Polar Feedback Receiver for Modulator

This disclosure relates to linearization in polar modulators of wireless communication devices, to attain linear amplification and high power efficiency during transmission.

Transmitter and transceiver, in particular for mobile radio, and transmission method

A receiver, in particular for mobile radio, includes a receiver branch with a mixer, downstream of an analog/digital converter. A reference generator generates a reference clock, which is fed to the converters or PLL synthesizers of the mixer by integral multiplication or division. As a result, a particularly energy-saving and space-saving circuit configuration is realized, which has a low level of mutual interference between the signals and is suitable (in particular for Universal Mobile Telecommunication System, UMTS). In a preferred embodiment, the receiver is developed into a transceiver by providing a transmission path.

Transmitter and method of transmitting a signal

A transmitter includes an output. A coupler receives at least a derivative of the output and provides a feedback signal. A demodulator receives the feedback signal and performs an additive mixing to demodulate the feedback signal.

Verfahren und Vorrichtung zum Erzeugen eines Übertragungssignals

Eine Vorrichtung zum Erzeugen eines Übertragungssignals hat einen Signalgenerator (100) zum Erzeugen eines ersten Signals mit einem ersten Frequenzspektrum, das eine Trägerfrequenz umfasst. Sie weist eine Leistungssteuereinheit (103) zum Bereitstellen eines Leistungsinformationssignals auf, das eine Information über einen Signalpegel des Übertragungssignals repräsentiert. Weiterhin hat sie einen ersten Signalformer (102) zum Rauschformen des ersten Signals in Abhängigkeit des Leistungsinformationssignals zu einem zweiten Signal, das Rauschanteile in wenigstens einem Frequenzbereich abseitig der Trägerfrequenz aufweist. Die Vorrichtung hat einen Signalausgang (108) zum Bereitstellen des zweiten Signals als Übertragungssignal.

Polar feedback receiver for modulator

This disclosure relates to linearization in polar modulators of wireless communication devices, to attain linear amplification and high power efficiency during transmission.

Transceiver arrangement and method for processing a signal

A transceiver arrangement includes a first receive path with a first connection and a first receive amplifier, and a second receive path with a second connection, a second receive amplifier, and a frequency conversion device. A controllable coupling device is configured to couple an output of the first receive amplifier to an input of the frequency conversion device on the second signal path. Furthermore, the transceiver arrangement includes a control circuit configured to deliver a control signal to the coupling device for combining signals delivered by the first and second receive amplifier in the correct phase based on a signal supplied by the receive paths. This achieves receive diversity wherein, on the one hand, additional external components are no longer necessary and, on the other hand, adequate signal quality is ensured even with a simultaneous transmit process of the transceiver arrangement.

POWER SAVING TECHNIQUE FOR DIGITAL TO TIME CONVERTERS

This document discusses apparatus and methods for reducing energy consumption of digital-to-time converter (DTC) based transmitters. In an example, a wireless device can include a digital-to-time converter (DTC) configured to receive phase information from a baseband processor and to provide a first modulation signal for generating a wireless signal, and a detector configured to detect an operating condition of the wireless device and to adjust a parameter of the DTC in response to a change in the operating condition. 1. A wireless device comprising:a digital-to-time converter (DTC) configured to receive phase information from a baseband processor and to provide a first modulation signal for generating a wireless signal; anda detector configured to detect an operating condition of the wireless device and to adjust a parameter of the DTC in response to a change in the operating condition.2. The wireless device of claim 1 , wherein the detector is configured to detect a change in transmission power of the wireless device claim 1 , to enable or disable at least a portion of the DTC in response to a change in transmission power.3. The wireless device of claim 1 , wherein the detector is configured to detect a change in transmission power of the wireless device claim 1 , to disable at least a portion of the DTC in response to a decrease in transmission power claim 1 , and to enable at least a portion of the DTC in response to an increase in transmission power.4. The wireless device of claim 1 , further comprising a second DTC configured to receive the phase information from the baseband processor and to provide the first modulation signal for generating the wireless signal.5. The wireless device of claim 4 , wherein the detector is configured to disable the second DTC if a transmission power of the wireless device exceeds a first threshold.6. The wireless device of claim 4 , wherein the detector is configured to disable the first DTC if a transmission power of the ...

Direkte Digitalfrequenzgenerierung mittels Zeit und Amplitude

Diese Anwendung erläutert unter anderem die Vorrichtung und Verfahren für die gemeinsame Nutzung eines lokalen Oszillators durch mehrere Funkeinrichtungen. In bestimmten Beispielen kann eine Vorrichtung einen zentralen Frequenzsynthesizer einschließen, der konfiguriert ist, um ein zentrales Oszillatorsignal zur Verfügung zu stellen, das eine erste Frequenz und einen ersten Sender besitzt sowie der erste Sender über einen ersten Sende-Digital/Zeit-Wandler (DTC) verfügt, der konfiguriert ist, um das zentrale Oszillatorsignal zu empfangen und ein erstes Sendersignal zur Verfügung zu stellen, das eine zweite Frequenz und einen ersten Empfänger besitzt, wobei der erste Empfänger einen ersten Empfangs-DTC umfasst, der konfiguriert ist, um das zentrale Oszillatorsignal zu empfangen und ein erstes Empfängersignal zur Verfügung zu stellen, das eine erste Empfangsfrequenz besitzt.

Rückgekoppelter Polar-Empfänger für einen Modulator

Modulator umfassend: eine Basisband-Komponente (102), welche derart ausgestaltet ist, dass sie Datensignale empfängt und ein Basisband-Signal (200, 202) von den Datensignalen erzeugt, und eine Funkfrequenzkomponente (104), um eine Modulierung mit Hilfe des Basisband-Signals (200, 202) durchzuführen, um ein moduliertes RF-Signal (122) zu erzeugen, wobei die Funkfrequenzkomponente (104) umfasst: einen rückgekoppelten Empfänger (124), um das Basisband-Signal für eine lineare Verstärkung zu extrahieren, wobei die Funkfrequenzkomponente (104) eine direkte Extrahierung des Basisband-Signals ohne eine Bereichsüberführung bereitstellt, und wobei die Funkfrequenzkomponente (104) den rückgekoppelten Empfänger (124) für eine lineare Verstärkung einsetzt, indem ein inverses Amplituden-Basisband-Signal (302) in dem rückgekoppelten Empfänger (124) eingeführt wird.

Transceiver circuit and method for providing local oscillator signals in a transceiver circuit

A transceiver circuit includes a transmission path and also at least two reception paths, which in each case contain a frequency conversion device with a local oscillator input. A first, a second and a third oscillator circuit, and also a programmable frequency divider circuit are furthermore provided. The outputs of the oscillator circuits are connected to a respective input of the programmable frequency divider circuit. The frequency divider circuit contains three outputs connected in each case to a local oscillator input of the transmission path and the two transmission paths. According to one example of the invention, the frequency divider circuit is designed for frequency division of a signal present at an input and for outputting the frequency-divided signal to one of the three outputs. With the programmable frequency divider circuit, signals at the three inputs of the frequency divider circuit can thus be divided arbitrarily in terms of their frequency and be output at the outputs ...

Eine Vorrichtung und ein Verfahren zum Bereitstellen von Oszillatorsignalen

Eine Vorrichtung zum Bereitstellen von Oszillatorsignalen umfasst ein erstes Digital-Zeit-Wandler-Modul, das ausgebildet ist, um ein erstes Oszillatorsignal basierend auf einem ersten, angepassten Eingangssignal zu erzeugen, ein zweites Digital-Zeit-Wandler-Modul, das ausgebildet ist, um ein zweites Oszillatorsignal zu erzeugen; und ein erstes Verarbeitungsmodul, das ausgebildet ist, um das erste, angepasste Eingangssignal des ersten Digital-Zeit-Wandler-Moduls durch Addieren von Rauschen zu einem ersten Eingangssignal zu erzeugen.

Sendevorrichtung und Verfahren zum Übertragen eines Datensignals

Eine Sendevorrichtung zum Übertragen eines Datensignals weist einen Leistungsverstärker (105, 307) zum Verstärken eines modulierten Ausgangssignals auf. An einen Ausgang des Leistungsverstärkers (105, 307) ist ein Kopplungselement (108, 309) zum Aufnehmen eines aus dem verstärkten Ausgangssignal abgeleiteten Rückführsignals gekoppelt. An das Kopplungselement (108, 309) ist ein Demodulator (202, 311) zum Demodulieren des Rückführsignals gekoppelt. Der Demodulator (202, 311) ist zum Durchführen eines additiven Mischens ausgelegt.

Tranceiveranordnung und Verfahren zum Verarbeiten eines Signals

Transceiveranordnung für den Mobilfunk, umfassend: einen ersten Empfangspfad mit einem ersten Anschluss (52b) und einem ersten Empfangsverstärker (62) zum Empfangen von Signalen gemäß einem ersten und einem zweiten Mobilfunkstandard; einen zweiten Empfangspfad zum Empfangen von Signalen gemäß dem zweiten Mobilfunkstandard mit einem zweiten Anschluss (52a), mit einem zweiten Empfangsverstärker (33) und mit einer Frequenzumsetzeinrichtung (35, 36, 35a, 36a); einen Sendepfad mit einem Abgriff (52) zur Abgabe eines Sendesignals; eine steuerbare Koppeleinrichtung (49, 49a), die einen Ausgang des ersten Empfangsverstärkers (62) mit einem Eingang der Frequenzumsetzeinrichtung (35; 36, 35a, 36a) im zweiten Signalpfad koppelt; eine Steuerschaltung (47, 47a), ausgeführt zur Abgabe eines Steuersignals an die Koppeleinrichtung (49, 49a) für eine phasenrichtige Zusammenführung von vom ersten und zweiten Empfangsverstärker (62, 33) abgegebenen Signalen in Abhängigkeit eines Parameters, der von einem ...

Transmission arrangement for transmitting data continuously in the time domain

A transmission arrangement is provided for transmitting data continuously in the time domain. The arrangement includes at least one programmable amplifier in the baseband or in the radio frequency path in the signal processing chain for the signal which is to be transmitted. This programmable amplifier is distinguished in that the signal which actuates the programmable amplifier is a discrete-value signal. By dispensing with complex digital/analog converters, the principle described allows markedly reduced power consumption in transmitters which use code multiple access methods.

An apparatus and method for generating base band receive signals

Polarmodulatoranordnung und Polarmodulationsverfahren

Polarmodulatoranordnung, die folgende Merkmale umfasst: einen ersten und einen zweiten Knoten (N1, N2), die konfiguriert sind, um ein Digitalsignal zu empfangen, das eine erste und eine zweite Komponente umfasst, die einer Digitalamplitudenkomponente und einer Digitalphasenkomponente entsprechen; ein erstes Digitalinterpolationsfilter (IPF 1), das konfiguriert ist, um durch Interpolieren und Filtern der ersten Komponente eine interpolierte erste Komponente zu erzeugen; ein Kombinationselement (CE), das konfiguriert ist, um ein polar moduliertes Hochfrequenzsignal als eine Funktion der interpolierten ersten Komponente und der zweiten Komponente zu erzeugen; und die ferner ein Tiefpassfilterelement (LP) umfasst, das konfiguriert ist, um ein Tiefpassfiltern der ersten Komponente und der zweiten Komponente durchzuführen bei der das Tiefpassfilterelement (LP) Filter umfasst, die für die erste und die zweite Komponente unterschiedliche Grenzfrequenzen aufweisen.

Sendeanordnung für zeitkontinuierliche Datenübertragung

The invention relates to a transmission configuration for continuous-time data transmission, whereby at least one programmable amplifier (7, 14) is provided in the baseband (1) or in the high frequency path (3) in the signal processing chain of the signal to be transmitted, instead of the standard automatic gain control means which is controlled by continuous-value control signals. The inventive configuration is characterised in that the signal controlling the programmable amplifier (7, 14) is a discrete-value signal. By eliminating costly digital-analog converters, the cited principle enables the current consumption of CDMA transmitters to be significantly reduced.

RECEIVER, ESPECIALLY FOR MOBILE RADIO COMMUNICATION

The invention relates to a receiver, especially for mobile radio communication, that comprises a receiving branch with a first mixer (M1) and a downstream analog/digital converter (AD). A reference generator (RG) generates a reference clock pulse (RT) which is fed to the converters or PLL synthesizers of the mixer by multiplication or division by an integer. The invention allows for an especially energy and space saving circuit design with little mutual interferences of the signals which is particularly appropriate for use in UMTS systems. In a preferred embodiment, the receiver is optimized to a transmitter/receiver by providing a transmit path. © KIPO & WIPO 2007 ...

Verstärkerschaltung mit einstellbarer wertdiskreter Verstärkung, Verwendung der Verstärkerschaltung und Verfahren zum Betreiben eines wertdiskret einstellbaren Verstärkers

Verstärkerschaltung mit wertdiskret einstellbarer Verstärkung, umfassend: - einen Signaleingang (I) zur Zuführung eines Signals; - einen Signalausgang (O) zur Bereitstellung eines verstärkten Signals; - einen Stelleingang (3L) zur Zuführung eines Stellsignals für eine Verstärkungsänderung; - eine Steuerschaltung (21) zur Verstärkungsänderung, die mit dem Stelleingang (3L) gekoppelt ist; - eine erste Verstärkerstufe (V1) und zumindest eine zweite zu der ersten Verstärkerstufe parallel geschaltete Verstärkerstufe (V1'), die jeweils zwischen dem Signaleingang (I) und dem Signalausgang (O) angeordnet sind und jeweils aufweisend einen ersten Verstärkungsfaktor sowie einen Schalteingang zur Verstärkungseinstellung, der mit der Steuerschaltung (21) gekoppelt ist; gekennzeichnet durch - zumindest eine dritte Verstärkerstufe (V2), die parallel zu der ersten Verstärkerstufe zwischen dem Signaleingang (I) und dem Signalausgang (O) angeordnet ist und einen zweiten Verstärkungsfaktor sowie einen Schalteingang ...

Sendeanordnung, Sende-Empfänger mit der Sendeanordnung und Verfahren zur Signalverarbeitung

Eine Sendeanordnung umfasst einen ersten Signaleingang (71) zur Zuführung eines Frequenzmodulationssignals ( DIAMETER (k)), einen zweiten Signaleingang (72) zur Zuführung eines Amplitudenmodulationssignals (r(k)), einen Phasenregelkreis (6) sowie eine Verstärkungseinrichtung (2). Diese ist mit einem Steueranschluss (23) an den zweiten Signaleingang (72) angeschlossen. Ein Signaleingang (21) der Verstärkungseinrichtung (2) ist mit dem Ausgang (61) des Phasenregelkreises (6) verbunden. In einem Rückführungspfad ist eine Umsetzeinrichtung (3) mit einem Lokaloszillatoreingang (31) vorgesehen. Diese ist ausgeführt, mit Hilfe eines Lokaloszillatorsignals ein von einem Ausgang der Verstärkungseinrichtung (2) ausgekoppeltes Signal in eine erste Komponente (I') und eine zweite Komponente (Q') zu zerlegen. Der Lokaloszillatoreingang (31) ist dabei mit dem Ausgang (61) des Phasenregelkreises (6) gekoppelt.

EMPFANGSEINRICHTUNG, INSBESONDERE FÜR DEN MOBILFUNK

Phase control circuit for radio devices such as software defined radios has voltage controlled oscillator phase detector pump circuit and feedback and output signals

A phase control circuit (PLL) comprises a voltage-controlled oscillator (VCO), phase detector (PC), and pump circuit (CP) with the oscillator giving out-of-phase signals of equal frequency, one of which is fed back to the phase detector giving an asymmetric feedback signal (RF) and the other giving an asymmetric signal output. An independent claim is also included for a radio device comprising the above.

Digitale Modulation

Verfahren zum Modulieren eines zwischen einer ersten Polarität und einer zweiten Polarität alternierenden Signals auf ein Trägersignal mit: Bestimmen (802) einer Polarität des Signals, Bereitstellen (800) eines invertierten Trägersignals, und Bereitstellen eines invertierten Signals durch Inversion der Polarität zumindest eines Teils des Signals, gekennzeichnet durch Bereitstellen eines ersten Teilsignals, das dem Signalanteil des Signals mit erster Polarität entspricht, und Bereitstellen eines zweiten Teilsignals, das dem invertierten Signalanteil des Signals mit zweiter Polarität entspricht. Mischen des ersten Teilsignals mit dem Trägersignal, und Mischen des zweiten Teilsignals mit dem invertierten Trägersignal. A method of modulating a signal alternating between a first polarity and a second polarity to a carrier signal, comprising: determining (802) a polarity of the signal, providing (800) an inverted carrier signal, and providing an inverted signal by inversion of the polarity of at least a portion of the signal characterized by providing a first sub-signal corresponding to the signal portion of the first-polarity signal, and providing a second sub-signal corresponding to the inverted signal portion of the second-polarity signal. Mixing the first sub-signal with the carrier signal, and mixing the second sub-signal with the inverted carrier signal.

CIRCUIT ARRANGEMENT WITH IMPROVED DECOUPLING

A circuit arrangement includes a component having a closed signal path, that closed signal path connected to a first port, a second port and at least a third port. The component has a directed signal flow of a signal applied to one of that ports. Such a coupling device can be connected to a transmitter and to a receiver path, respectively.

CIRCUIT AND METHOD

Embodiments of the present invention create a circuit having a digital-to-time converter with a high-frequency input for receiving a high-frequency signal, a digital input for receiving a first digital signal, and a high-frequency output for the provision of a chronologically delayed version of the HF signal. In addition, the circuit has an oscillator arrangement for the provision of the high-frequency signal, having a phase-locked loop for adjusting a frequency of the high-frequency signal. The digital-to-time converter is designed to chronologically delay the received high-frequency signal based on the first digital signal received at its digital input.

LOCATION DETERMINATION USING LIGHT SOURCES

The present disclosure relates to computer-implemented systems and methods for location determination using light sources. An example method may include receiving, by a computer including one or more processors, a location request for a device within an indoor environment. The method may also include receiving respective light source identifiers associated with one or more light sources in the indoor environment. The one or more light sources may be in communication with the device. Additionally, the method may include accessing, by the computer, a virtual map associated with the indoor environment, and the virtual map may include one or more associations between the respective light source identifiers and respective positions, within the indoor environment, of the one or more light sources. Furthermore, the method may include determining, based at least in part on the virtual map and the respective light source identifiers, a location of the device within the indoor environment.

Transmitter of mobile device, has converter to produce vector modulated radio frequency (RF) output signal and polar-modulated RF output signal based on baseband signals and oscillator signal in vector and polar modulation modes

An oscillator circuit (103) provides oscillator signal (109) as unmodulated and modulated signals in vector and polar modulation modes respectively. A radio frequency digital-to-analog converter (RFDAC) (105) produces vector modulated radio frequency (RF) output signal (111) based on first baseband signal (107) and oscillator signal, in vector modulation mode. The RFDAC provides polar-modulated RF output signal based on amplitude component of second baseband signal and oscillator signal, in polar modulation mode. Independent claims are included for the following: (1) a method for providing modulated vector radio frequency output signal and polar modulated radio frequency output signal; and (2) a computer program for providing modulated vector radio frequency output signal and polar modulated radio frequency output signal.

TRANSMITTING AND RECEIVING UNIT

PROBLEM TO BE SOLVED: To provide a transmitting and receiving unit suitable for a duplex type FDD(frequency division duplex), TDD(time division duplex) and an FDD, having a variable frequency interval and capable of high integration with reduced energy consumption. SOLUTION: The transmitting and receiving unit, used in a UMTS(universal mobile telecommunications system), is provided. This unit comprises an intermediate frequency of a range of 0 to 0.5 MHz on the reception side and an intermediate frequency of 190 MHz on the transmission side. According to this, operations by the FDD, the TDD and the FDD having a variable duplex frequency can be conducted. When one network provider can utilize only a small bandwidth, he can operate in the mode for saving energy, so as to need only a single local oscillator L1 for a first mixer and second mixers M1 and M2. In this case, the intermediate frequency of 190 MHz of the transmission side can be deviated by ±5 or by ±10 MHz. COPYRIGHT: (C)2001,JPO ...

Verstärkeranordnung und Verfahren zur Kompensation eines Signalanteils in einer Verstärkeranordnung

Verstärkeranordnung, umfassend: - eine erste Verstärkerstufe (4) mit einem ersten einstellbaren diskreten Verstärkungsfaktor, mit einem Eingang und einem Ausgang; - zumindest eine zweite Verstärkerstufe (9) mit einem zweiten einstellbaren diskreten Verstärkungsfaktor, mit einem an den Ausgang der ersten Verstärkerstufe (4) angeschlossenen Eingang und einem Ausgang; - einen Rückführungspfad, der zwischen den Ausgang der zumindest einen zweiten Verstärkerstufe (9) und dem Eingang der ersten Verstärkerstufe (4) geschaltet ist, wobei der Rückführungspfad zur Erzeugung und Abgabe eines Signals an den Eingang der ersten Verstärkerstufe (4) zur Kompensation eines Offsetsignals am Ausgang der zumindest einen zweiten Verstärkerstufe (9) hervorgerufen durch ein Einstellen des ersten und/oder zweiten Verstärkungsfaktors ausgebildet ist.

Transceiverschaltung und Verfahren zur Bereitstellung von Lokaloszillatorsignalen in einer Transceiverschaltung

Transceiverschaltung (1), umfassend: - zumindest einen Sendepfad (14) mit einem Lokaloszillatoreingang (145a), der mit einer Frequenzumsetzeinrichtung (145) des Sendepfades (14) gekoppelt ist; - einen ersten Empfangspfad (11) mit einem Lokaloszillatoreingang (112a), der mit einer Frequenzumsetzeinrichtung (112) des ersten Empfangspfads (11) gekoppelt ist; - zumindest einen zweiten Empfangspfad (12) mit einem zweiten Lokaloszillatoreingang (112b), der mit einer Frequenzumsetzeinrichtung des zweiten Empfangspfads (12) gekoppelt ist; - zumindest eine erste, zweite und dritte Lokaloszillatorschaltung (16, 17, 18, 19) zur Abgabe je eines in seiner Frequenz abstimmbaren Ausgangssignals; - eine programmierbare Frequenzteilerschaltung (15) mit zumindest drei Eingängen (151, 152, 153) und zumindest drei Ausgängen (155, 156, 157, 158), wobei je ein Eingang mit je einer der zumindest ersten, zweiten und dritten Lokaloszillatorschaltungen (16, 17, 18, 19) gekoppelt ist und ein erster Ausgang (155) ...

III-N TRANSISTORS INTEGRATED WITH RESONATORS OF RADIO FREQUENCY FILTERS

Disclosed herein are IC structures, packages, and devices that include III-N transistors integrated on the same substrate or die as resonators of RF filters. An example IC structure includes a support structure (e.g., a substrate), a resonator, provided over a first portion of the support structure, and an III-N transistor, provided over a second portion of the support structure. The IC structure includes a piezoelectric material so that first and second electrodes of the resonator enclose a first portion of the piezoelectric material, while a second portion of the piezoelectric material is enclosed between the channel material of the III-N transistor and the support structure. In this manner, one or more resonators of an RF filter may be monolithically integrated with one or more III-N transistors. Such integration may reduce costs and improve performance by reducing RF losses incurred when power is routed off chip.

DEVICE HAVING DIGITALLY CONTROLLED OSCILLATOR

A device includes a digital-to-time converter and an interpolator having a data input and a data output coupled to the digital-to-time converter. The interpolator may be configured to receive a converter control signal at the data input and to provide an interpolated converter control signal at the data output. An interpolation rate of the interpolator may depend on the converter control signal.

Schaltung und Verfahren

Schaltung (10), umfassend:einen Oszillator (11), der dafür ausgelegt ist, ein erstes Signal mit einer ersten Frequenz (f) zu liefern;einen mit dem Oszillator (11) gekoppelten Frequenzumsetzer (12), der dafür ausgelegt ist, das erste Signal in ein zweites Signal mit einer zweiten Frequenz (f) umzusetzen; undeinen mit dem Frequenzumsetzer (12) gekoppelten Schalt-DC/DC-Umsetzer (13), der dafür ausgelegt ist, eine erste Spannung (V) in eine zweite Spannung (V) umzusetzen, wobei der DC/DC-Umsetzer (13) durch das zweite Signal gesteuert wird,wobei das erste Signal eine erste Frequenzbandbreite und das zweite Signal eine zweite Frequenzbandbreite aufweist, und wobei die erste und die zweite Frequenzbandbreite nicht überlappen,wobei die zweite Frequenz (f) M/N-mal die erste Frequenz (f) beträgt, wobei M und N ganze Zahlen sind und M ungleich N ist und wobei die zweite Frequenz (f) keine Harmonische oder Subharmonische der ersten Frequenz (f) ist.

Circuit arrangement with improved decoupling

A circuit arrangement includes a component having a closed signal path, that closed signal path connected to a first port, a second port and at least a third port. The component has a directed signal flow of a signal applied to one of that ports. Such a coupling device can be connected to a transmitter and to a receiver path, respectively.

Circuit arrangement with improved decoupling

A circuit arrangement includes a component having a closed signal path, that closed signal path connected to a first port, a second port and at least a third port. The component has a directed signal flow of a signal applied to one of that ports. Such a coupling device can be connected to a transmitter and to a receiver path, respectively.

Verstärkerschaltung mit einstellbarer wertdiskreter Verstärkung, Verwendung der Verstärkerschaltung und Verfahren zum Betreiben eines wertdiskret einstellbaren Verstärkers

Es ist eine Verstärkerschaltung angegeben, in der eine erste Verstärkerstufe (V1) und zumindest eine zweite Verstärkerstufe (V1') jeweils zwischen Signaleingang (I) und Signalausgang (O) angeordnet sind. Sie sind mit einem ersten Verstärkungsfaktor sowie einem Schalteingang ausgebildet. Weiterhin enthält die Verstärkerschaltung eine dritte Verstärkerstufe (V2) mit einem zweiten Verstärkungsfaktor, die zwischen Signaleingang (I) und Signalausgang (O) angeordnet ist. Eine Steuerschaltung (21) ist zur Verstärkungseinstellung mit jeder Verstärkerstufe (V1, V2) gekoppelt. Die Steuerschaltung weist einen ersten Steuerblock (211), ausgebildet für eine Eintaktsignalverarbeitung, und einen zweiten Steuerblock, ausgebildet für eine Gegentaktsignalverarbeitung, auf. Bei einer Verstärkungsänderung der ersten und zumindest einer zweiten Verstärkerstufe (V1, V1') ist sie zur Zuführung von Steuersignalen des ersten Steuerblocks (211) an die Verstärkerstufe (V1, V1') und bei einer Verstärkungsänderung ...

Integrierter Transceiverschaltkreis

Der erfindungsgemäße integrierte Transceiverschaltkreis weist einen Empfangspfad auf, welcher wiederum eine Mischereinheit (11.1, 11.2) zum Demodulieren eines Empfangssignals (ES) und eine Analog-Digital-Wandlereinheit (14.1, 14.2), die der Mischereinheit (11.1, 11.2) nachgeschaltet ist, aufweist. Der integrierte Transceiverschaltkreis weist zudem einen ersten spannungsgesteuerten Oszillator (18) und einen ersten Frequenzteiler (12) auf, wobei der Frequenzteiler (12) zwischen den ersten Oszillator (18) und die Mischeinheit (11.1, 11.2) geschaltet ist, um die Demodulationsfrequenz vorzugeben. Schließlich ist ein zweiter Frequenzteiler (23) vorgesehen, der zwischen dem ersten Oszillator (18) und die Analog-Digital-Wandlereinheit (14.1, 14.2) geschaltet ist, um die Abtastfrequenz vorzugeben.

Integrierter Transceiverschaltkreis und Kompensationsverfahren im integrierten Transceiverschaltkreis

Integrierter Transceiverschaltkreis mit einem Sender (S), mit einem Empfänger (E), mit einer Verstärker/Dämpfereinheit (41), die zwischen den Ausgang des Senders (S) und den Eingang des Empfängers (E) geschaltet ist, mit einer Steuereinheit (43), über welche die Phase der Verstärker/Dämpfereinheit (41) einstellbar ist, bei der der Empfänger (E) eine Mischereinheit (11.1, 11.2) aufweist, um ein Empfangssignal (RX) herunterzumischen, dadurch gekennzeichnet, dass eine Analog-Digital-Wandlereinheit (45.1, 45.2) zwischen die Mischereinheit (11.1, 11.2) und die Steuereinheit (43) zur Umwandlung eines Gleichspannungssignals an einem Ausgang der Mischereinheit (11.1, 11.2) in ein digitales Signal und zur Abgabe des digitalen Signals an die Steuereinheit (43) geschaltet ist.

Digitale Modulation

Die vorliegende Anmeldung betrifft Ausführungsformen von Verfahren und eine Vorrichtung zur digitalen Modulation. In einer Ausführungsform des Verfahrens werden die folgenden Schritte ausgeführt: - Bestimmen einer Polarität des Signals, - Bereitstellen eines invertierten Trägersignals, - Bereitstellen eines invertierten Signals durch Inversion der chen des Signals mit dem Trägersignal, wenn das Signal die erste Polarität aufweist, und - Mischen des invertierten Signals mit dem invertierten Trägersignal, wenn das Signal die zweite Polarität aufweist.

Transceiver arrangement and method for processing a signal

A transceiver arrangement includes a first receive path with a first connection and a first receive amplifier, and a second receive path with a second connection, a second receive amplifier, and a frequency conversion device. A controllable coupling device is configured to couple an output of the first receive amplifier to an input of the frequency conversion device on the second signal path. Furthermore, the transceiver arrangement includes a control circuit configured to deliver a control signal to the coupling device for combining signals delivered by the first and second receive amplifier in the correct phase based on a signal supplied by the receive paths. This achieves receive diversity wherein, on the one hand, additional external components are no longer necessary.

Circuit and method

Embodiments of the present invention create a circuit having a digital-to-time converter with a high-frequency input for receiving a high-frequency signal, a digital input for receiving a first digital signal, and a high-frequency output for the provision of a chronologically delayed version of the HF signal. In addition, the circuit has an oscillator arrangement for the provision of the high-frequency signal, having a phase-locked loop for adjusting a frequency of the high-frequency signal. The digital-to-time converter is designed to chronologically delay the received high-frequency signal based on the first digital signal received at its digital input.

Radio frequency signal synthesizer circuit and method for generating a radio frequency signal

A radio frequency signal synthesizer circuit includes a digital to analog converter configured to generate an analog output signal for each clock cycle of a clock signal to provide the radio frequency signal and a controlled oscillator to generate the clock signal. The controlled oscillator is configured to vary a cycle time of the clock signal for a radio frequency signal in a first frequency range in a first operation mode or to maintain a constant cycle time for a radio frequency signal in a second frequency range in a second operation mode, the second frequency range being different than the first frequency range.

Transceiver for duplex operation

A transceiver for use in universal mobile telecommunication systems is specified which exhibits an intermediate frequency in a range from 0 to 0.5 megahertz at the receiver end and an intermediate frequency of 190 megahertz at the transmitting end. The configuration described enables it to be operated with frequency duplex division (FDD), time duplex division and FDD variable duplex frequency. When a network operator is only provided with a narrow bandwidth, the configuration described can be operated in a particularly energy-saving manner due to the fact that only one local oscillator is needed for the first and second mixers. In this case, the transmit intermediate frequency of 190 megahertz can be adjusted by +/-5 or +/-10 megahertz. The configuration described can be highly integrated in a simple manner.

Transceiver arrangement and method for processing a signal

A transceiver arrangement includes a first receive path with a first connection and a first receive amplifier, and a second receive path with a second connection, a second receive amplifier, and a frequency conversion device. A controllable coupling device is configured to couple an output of the first receive amplifier to an input of the frequency conversion device on the second signal path. Furthermore, the transceiver arrangement includes a control circuit configured to deliver a control signal to the coupling device for combining signals delivered by the first and second receive amplifier in the correct phase based on a signal supplied by the receive paths. This achieves receive diversity wherein, on the one hand, additional external components are no longer necessary and, on the other hand, adequate signal quality is ensured even with a simultaneous transmit process of the transceiver arrangement.

Power saving technique for digital to time converters

This document discusses apparatus and methods for reducing energy consumption of digital-to-time converter (DTC) based transmitters. In an example, a wireless device can include a digital-to-time converter (DTC) configured to receive phase information from a baseband processor and to provide a first modulation signal for generating a wireless signal, and a detector configured to detect an operating condition of the wireless device and to adjust a parameter of the DTC in response to a change in the operating condition.

Generation of a transmission signal

One embodiment covers an apparatus for generating a transmission signal. The apparatus may include a signal generator that generates a first signal with a first frequency spectrum comprising a carrier frequency; a power control unit that provides a power information signal which represents a signal level of the transmission signal residing at the carrier frequency; a first signal shaper for noise-shaping the first signal based on the power information signal to form a second signal which has a noise component in at least one frequency range remote from the carrier frequency, the noise component of the second signal being from one or more signal components associated with the carrier frequency; and a signal output that provides the second signal in the form of a transmission signal.

Apparatus and method for generating an oscillator signal

An apparatus comprises a mechanical resonator-based oscillator module generating a local oscillator signal with a frequency of more than 700 MHz. Further, the apparatus comprises a digital-to-time converter module generating a frequency adapted signal based on the local oscillator signal.

Transmitter and Transceiver, in particular for Mobile Radio, and Transmission Method

A receiver, in particular for mobile radio, includes a receiver branch with a mixer, downstream of an analog/digital converter. A reference generator generates a reference clock, which is fed to the converters or PLL synthesizers of the mixer by integral multiplication or division. As a result, a particularly energy-saving and space-saving circuit configuration is realized, which has a low level of mutual interference between the signals and is suitable (in particular for Universal Mobile Telecommunication System, UMTS). In a preferred embodiment, the receiver is developed into a transceiver by providing a transmission path.

Polar modulator arrangement and polar modulation method

A polar modulator arrangement has a first and a second node to receive a digital signal with a first and a second component corresponding to a digital amplitude component and a digital phase component. A digital interpolation filter generates an interpolated first component by interpolating and filtering the first component. A polar modulated radio frequency signal is generated by a combination element as a function of the interpolated first component and the second component.

Direct digital frequency generation using time and amplitude

This application discusses, among other things, apparatus and methods for sharing a local oscillator between multiple wireless devices. In certain examples, an apparatus can include a central frequency synthesizer configured to provide a central oscillator signal having a first frequency, a first transmitter, the first transmitter including a first transmit digital-to-time converter (DTC) configured to receive the central oscillator signal and to provide a first transmitter signal having a second frequency, and a first receiver, the first receiver including a first receive DTC configured to receive the central oscillator signal and to provide a first receiver signal having a first receive frequency.

FILTER-CENTRIC III-N FILMS ENABLING RF FILTER INTEGRATION WITH III-N TRANSISTORS

Disclosed herein are IC structures, packages, and devices that include III-N transistors integrated on the same substrate or die as resonators of RF filters. An example IC structure includes a support structure (e.g., a substrate), a resonator, provided over a first portion of the support structure, and an III-N transistor, provided over a second portion of the support structure. The IC structure includes a piezoelectric material so that first and second electrodes of the resonator enclose a first portion of the piezoelectric material, while a second portion of the piezoelectric material is enclosed between the channel material of the III-N transistor and the support structure. In this manner, one or more resonators of an RF filter may be monolithically integrated with one or more III-N transistors. Such integration may reduce costs and improve performance by reducing RF losses incurred when power is routed off chip. 1. A radio frequency (RF) device , comprising: an III-N transistor, and', 'a RF resonator., 'a die, the die including2. The RF device according to claim 1 , wherein:the die includes a III-N semiconductor material,the III-N transistor is over a first portion of the III-N semiconductor material, anda second portion of the III-N semiconductor material is between a first electrode and a second electrode of the RF resonator.3. The RF device according to claim 2 , further comprising:a first cavity surrounding at least a portion of the first electrode of the RF resonator, anda second cavity surrounding at least a portion of the second electrode of the RF resonator.4. The RF device according to claim 2 , wherein the III-N semiconductor material is a sputtered III-N semiconductor material claim 2 , and wherein the RF device further includes an epitaxially grown III-N semiconductor material over the first portion of the sputtered III-N semiconductor material.5. The RF device according to claim 4 , wherein a full width half maximum (FWHM) of an X-ray diffraction ...

LO frequency generation using resonator

Systems, methods, and circuitries are provided for resonator-based local oscillator signal generation for receiving self-interference signals. An interference cancellation system for a transceiver includes a resonator configured to generate a high-frequency signal and a local oscillator circuitry. The local oscillator circuitry includes a digital-to time converter configured to receive the high-frequency signal and, in response, generate a clock signal for receiving an interfering signal having an interference frequency. Digital cancellation circuitry is configured to adapt operation of the transceiver based, at least in part, on the received interfering signal.

High efficiency modulation

This disclosure is directed to techniques for increasing the power efficiency of a modulator.

Transceiver with interference signal rejection, and method for interference signal rejection

A transceiver with interference signal rejection has a transmission path and a reception path. The transmission path is connected to a transmission amplifier whose output is coupled to an antenna. In addition, the antenna is also connected to the reception path. A compensating apparatus is provided which is coupled to an input of the reception path. The output of the transmission path and the input of the transmission amplifier also have an extraction element connected between them which is connected to an input of the compensating circuit. A signal component of a transmitted signal is extracted before amplification to an output level and is routed to the reception path via the compensating circuit such that this compensates for a crosstalk transmitted signal component.

Transmitters and methods

A transmitter comprises a baseband signal path, which is designed to provide a first baseband signal having an in-phase component and a quadrature component in a first mode of the transmitter and to provide a second baseband signal having an amplitude component and a phase component in a second mode of the transmitter; an oscillator circuit, which is designed to provide an oscillator signal, wherein the oscillator circuit is furthermore designed to provide the oscillator signal as an unmodulated signal in the first mode and to provide the oscillator signal as a modulated signal in the second mode, wherein a modulation of the oscillator signal in the second mode is based on the phase component of the second baseband signal; and a radio-frequency digital-to-analogue converter (RF-DAC), which is designed to receive the oscillator signal, the first baseband signal and the amplitude component of the second baseband signal, wherein the RF-DAC is furthermore designed to provide the vector-modulated ...

Power saving technique for digital to time converters

This document discusses apparatus and methods for reducing energy consumption of digital-to-time converter (DTC) based transmitters. In an example, a wireless device can include a digital-to-time converter (DTC) configured to receive phase information from a baseband processor and to provide a first modulation signal for generating a wireless signal, and a detector configured to detect an operating condition of the wireless device and to adjust a parameter of the DTC in response to a change in the operating condition.

Circuit and method

Implementations related to circuits including an oscillator and a switch-mode DC/DC converter are presented herein.

Transceiver with interference signal rejection, and method for interference signal rejection

A transceiver with interference signal rejection has a transmission path and a reception path. The transmission path is connected to a transmission amplifier whose output is coupled to an antenna. In addition, the antenna is also connected to the reception path. A compensating apparatus is provided which is coupled to an input of the reception path. The output of the transmission path and the input of the transmission amplifier also have an extraction element connected between them which is connected to an input of the compensating circuit. A signal component of a transmitted signal is extracted before amplification to an output level and is routed to the reception path via the compensating circuit such that this compensates for a crosstalk transmitted signal component.

Controllable amplifier circuit with a variable discrete-value gain, use of the amplifier circuit and method for operation of an amplifier whose gain can be adjusted in discrete values

An amplifier circuit is disclosed in which a first amplifier stage and at least one second amplifier stage are each arranged between a signal input and a signal output. These amplifier stages are designed with a first gain factor and with a switching input. The amplifier circuit also has a third amplifier stage with a second gain factor, which is arranged between the signal input and the signal output. A control circuit is coupled to each amplifier stage for gain adjustment. The control circuit has a first control block designed for single-ended signal processing, and a second control block designed for push-pull signal processing. It is designed to supply control signals from the first control block to the amplifier stage when the gain of the first and at least one second amplifier stage is varied, and to supply control signals from the second control block to all of the amplifier stages when the gain of the at least one third amplifier stage is varied.

Polar feedback receiver for modulator

This disclosure relates to linearization in polar modulators of wireless communication devices and associated methods, to attain linear amplification and high power efficiency during transmission.

Amplifier arrangement and method for calibrating an amplifier arrangement

An amplifier arrangement is disclosed that includes at least two series-connected, programmable amplifiers. The amplifiers each have a different amplifier step size. In addition, a calibration path is provided which feeds back the output of the second programmable amplifier to the programming inputs of the first and/or second programmable amplifier. The calibration path includes an analog/digital converter and an evaluation and control element. It is thus possible to calibrate away less-than-ideal characteristics, particularly in the case of changes in the gain from one amplifier block to another. The proposed amplifier arrangement and the method for calibration are particularly suitable for use in transmission and reception paths in transceivers which operate continuously over time.

APPARATUS AND METHOD FOR GENERATING AN OSCILLATOR SIGNAL

An apparatus comprises a mechanical resonator-based oscillator module generating a local oscillator signal with a frequency of more than 700 MHz. Further, the apparatus comprises a digital-to-time converter module generating a frequency adapted signal based on the local oscillator signal. 1. An apparatus for generating an oscillator signal comprising:a mechanical resonator based oscillator circuit configured to generate a local oscillator signal with a frequency of more than 700 MHz;a digital-to-time converter circuit configured to generate a frequency adapted signal based on the local oscillator signal; anda mixing circuit configured to generate a frequency converted signal based on the frequency adapted signal and a radio frequency receive signal or a signal associated therewith,wherein the frequency converted signal comprises a baseband receive signal.2. The apparatus according to claim 1 , wherein the mechanical resonator based oscillator circuit is configured to generate the local oscillator signal based on a mechanical resonator element having a resonance frequency of more than 700 MHz.3. The apparatus according to claim 1 , wherein the mechanical resonator based oscillator circuit is one of the group comprising a bulk acoustic wave based oscillator claim 1 , a surface acoustic wave based oscillator claim 1 , a piezoelectric effect based oscillator and a micro-electro-mechanical-system-based oscillator.4. The apparatus according to claim 1 , wherein the mechanical resonator based oscillator circuit claim 1 , the digital-to-time converter circuit and a signal path of the local oscillator signal between the mechanical resonator based oscillator circuit and the digital-to-time converter circuit are phase-locked-loop-less.5. The apparatus according to claim 1 , wherein the mechanical resonator based oscillator circuit claim 1 , the digital-to-time converter circuit and a signal path of the local oscillator signal between the mechanical resonator based oscillator ...

An apparatus and method for generating base band receive signals

An apparatus for generating base band receive signals includes a first analog-to-digital converter module generating a first digital high frequency receive signal at least by sampling a first analog high frequency receive signal, a first digital signal processing module generating a first base band receive signal based on the first digital high frequency receive signal, a second analog-to-digital converter module generating a second digital high frequency receive signal at least by sampling a second analog high frequency receive signal and a second digital signal processing module generating a second base band receive signal based on the second digital high frequency receive signal. The first analog high frequency receive signal comprises first payload data at a first receive channel associated with a first carrier frequency and the second analog high frequency receive signal comprises second payload data at a second receive channel associated with a second carrier frequency.

CIRCUIT ARRANGEMENT WITH IMPROVED DECOUPLING

A circuit arrangement includes a component having a closed signal path, that closed signal path connected to a first port, a second port and at least a third port. The component has a directed signal flow of a signal applied to one of that ports. Such a coupling device can be connected to a transmitter and to a receiver path, respectively. 1. A circuit arrangement , comprising:a device comprising a closed signal path, the closed signal path connected to a first port, to a second port and to at least a third port, the closed signal path comprising a directed signal flow with respect to a signal applied to one of the first, second and third port;a tunable matching network connected to the second port, the tunable matching network configured to match an impedance of a circuit coupled thereto to an impedance of at least a first circuits coupled to the third port.2. The circuit arrangement of claim 1 , wherein the closed signal path comprises a circular conductor loop.3. The circuit arrangement of claim 1 , wherein the device comprises a magnetic material surrounding the closed signal path.4. The circuit arrangement of claim 1 , wherein the first port claim 1 , the second port and the third port connected to the closed signal path are arranged with an angle of approximately 120° to each other.5. The circuit arrangement of claim 1 , wherein the matching network comprises a directional coupler configured to measure a signal portion of at least a reflected signal claim 1 , wherein the directional coupler is disposed between the second port and the circuit.6. The circuit arrangement of claim 1 , wherein an impedance of the matching network is tunable in response to a tuning signal.7. The circuit arrangement of claim 5 , wherein an impedance of the matching network is tunable in response to a tuning word claim 5 , wherein the tuning word is derived by the reflected signal.8. The circuit arrangement of claim 1 , wherein the matching network comprises a tunable element ...

Transmitters and Methods

A transmitter comprises a baseband signal path, which is designed to provide a first baseband signal having an in-phase component and a quadrature component in a first mode of the transmitter and to provide a second baseband signal having an amplitude component and a phase component in a second mode of the transmitter; an oscillator circuit, which is designed to provide an oscillator signal, wherein the oscillator circuit is furthermore designed to provide the oscillator signal as an unmodulated signal in the first mode and to provide the oscillator signal as a modulated signal in the second mode, wherein a modulation of the oscillator signal in the second mode is based on the phase component of the second baseband signal; and a radio-frequency digital-to-analogue converter (RF-DAC), which is designed to receive the oscillator signal, the first baseband signal and the amplitude component of the second baseband signal, wherein the RF-DAC is furthermore designed to provide the vector-modulated RF output signal on the basis of the first baseband signal and the oscillator signal in the first mode and to provide the polar-modulated RF output signal on the basis of the amplitude component of the second baseband signal and the oscillator signal in the second mode.

POLAR FEEDBACK RECEIVER FOR MODULATOR

This disclosure relates to linearization in polar modulators of wireless communication devices and associated methods, to attain linear amplification and high power efficiency during transmission. 1. A feedback receiver comprising:an inverse baseband magnitude component configured to generate an inverse compensated magnitude signal from a compensated magnitude signal;a first mixer component configured to combine the inverse compensated magnitude signal with a modulated radio frequency (RF) signal to generate a limited modulated RF signal; anda second mixer component configured to extract a magnitude signal plus distortion from the limited modulated RF signal.2. The feedback receiver of claim 1 , wherein the inverse baseband magnitude component includes a gain to reverse a low frequency baseband magnitude signal.3. The feedback receiver of claim 1 , wherein the first mixer is configured to operate as a variable gain stage to generate a limited modulated RF signal entering into a phase discriminator claim 1 , wherein the phase discriminator directly extracts a phase signal plus distortion from the limited modulated RF signal.4. The feedback receiver of claim 1 , further comprising a multi modulus divider (MMD) and a sigma delta converter configured to extract the phase distortion only from the limited modulated RF signal claim 1 , wherein the MMD divides the limited modulated RF signal and the sigma delta converter removes the phase modulation.5. The feedback receiver of claim 1 , further comprising an analog to digital converter (ADC) component and 1/M square root component claim 1 , wherein the magnitude signal plus distortion includes a magnitude signal plus a square of a distortion claim 1 , and the magnitude signal plus distortion is converted into digital form by the ADC component claim 1 , and transformed by the 1/M square root component to obtain a magnitude distortion only.6. The feedback receiver of claim 1 , further comprising a phase discriminator ...

Circuit and Method

Embodiments of the present invention create a circuit having a digital-to-time converter with a high-frequency input for receiving a high-frequency signal, a digital input for receiving a first digital signal, and a high-frequency output for the provision of a chronologically delayed version of the HF signal. In addition, the circuit has an oscillator arrangement for the provision of the high-frequency signal, having a phase-locked loop for adjusting a frequency of the high-frequency signal. The digital-to-time converter is designed to chronologically delay the received high-frequency signal based on the first digital signal received at its digital input. 126-. (canceled)27. A circuit , comprising:a digital-to-time converter comprising a high-frequency input configured to receive a high-frequency signal, a digital input configured to receive a first digital signal, and a high-frequency output configured to provide a chronologically delayed version of the high-frequency signal; andan oscillator arrangement configured to provide the high-frequency signal having a phase-locked loop configured to provide a frequency of the high-frequency signal; andwherein the digital-to-time converter is configured to chronologically delay the received high-frequency signal based on the first digital signal received at its digital input.28. The circuit according to claim 27 , wherein the oscillator arrangement is further configured to vary a phase of the high-frequency signal based on an additional digital signal.29. The circuit according to claim 27 , further comprising:a polar coordinate provider configured to provide a first phase signal that determines a phase modification or a phase of the delayed version of the high-frequency signal; andwherein the first phase signal includes the first digital signal or is the first digital signal.30. The circuit according to :wherein the polar coordinate provider is configured to provide the first phase signal in such a manner that it includes ...

Radio frequency signal synthesizer circuit and Method for generating a radio frequency signal

A radio frequency signal synthesizer circuit includes a digital to analog converter configured to generate an analog output signal for each clock cycle of a clock signal to provide the radio frequency signal and a controlled oscillator to generate the clock signal. The controlled oscillator is configured to vary a cycle time of the clock signal for a radio frequency signal in a first frequency range in a first operation mode or to maintain a constant cycle time for a radio frequency signal in a second frequency range in a second operation mode, the second frequency range being different than the first frequency range. 1. A radio frequency signal synthesizer circuit , comprising:a digital to analog converter configured to generate an analog output signal for each clock cycle of a clock signal to provide the radio frequency signal; anda controlled oscillator to generate the clock signal, the controlled oscillator configured to vary a cycle time of the clock signal for a radio frequency signal in a first frequency range in a first operation mode or to maintain a constant cycle time for a radio frequency signal in a second frequency range in a second operation mode, the second frequency range being different than the first frequency range.2. The radio frequency signal synthesizer circuit of claim 1 , wherein the second frequency range is lower than the first frequency range3. The radio frequency signal synthesizer circuit of claim 1 , wherein the digital to analog converter is configured to output a single amplitude value for a full cycle of the radio frequency signal at a time instant given by the clock cycle of the clock signal.4. The radio frequency signal synthesizer circuit of claim 1 , wherein the digital to analog converter is configured to output one of multiple samples of a full cycle of the radio frequency signal at a time instant given by the clock cycle of the clock signal.5. The radio frequency signal synthesizer circuit of claim 1 , wherein the controlled ...

Range extension for interference cancellation analog to digital converter

Systems, methods, and circuitries are provided for extending the range of an analog-to-digital converter (ADC) associated with interference cancellation. In one example a transceiver includes front end circuitry configured to transmit a radio frequency (RF) transmit signal that includes an intended signal and an interference signal. The transceiver includes self-interference cancellation (SIC) circuitry configured to control the front end circuitry based at least on a digital baseband reference transmit signal that comprises a digital representation of the intended signal. ADC range extension circuitry is provided to: receive the RF transmit signal from the front end circuitry; receive the digital baseband reference transmit signal from the SIC circuitry; approximate the interference signal by generating an analog estimated interference signal that corresponds to a difference between the RF transmit signal and the digital baseband reference transmit signal; and provide the analog estimated interference signal to the ADC.

APPARATUS AND METHOD FOR GENERATING BASE BAND RECEIVE SIGNALS

An apparatus for generating base band receive signals includes a first analog-to-digital converter module generating a first digital high frequency receive signal at least by sampling a first analog high frequency receive signal, a first digital signal processing module generating a first base band receive signal based on the first digital high frequency receive signal, a second analog-to-digital converter module generating a second digital high frequency receive signal at least by sampling a second analog high frequency receive signal and a second digital signal processing module generating a second base band receive signal based on the second digital high frequency receive signal. The first analog high frequency receive signal comprises first payload data at a first receive channel associated with a first carrier frequency and the second analog high frequency receive signal comprises second payload data at a second receive channel associated with a second carrier frequency.

DIRECT DIGITAL FREQUENCY GENERATION USING TIME AND AMPLITUDE

This application discusses, among other things, apparatus and methods for sharing a local oscillator between multiple wireless devices. In certain examples, an apparatus can include a central frequency synthesizer configured to provide a central oscillator signal having a first frequency, a first transmitter, the first transmitter including a first transmit digital-to-time converter (DTC) configured to receive the central oscillator signal and to provide a first transmitter signal having a second frequency, and a first receiver, the first receiver including a first receive DTC configured to receive the central oscillator signal and to provide a first receiver signal having a first receive frequency. 1. An apparatus comprising:a central frequency synthesizer configured to provide a central oscillator signal having a first frequency;a first transmitter, the first transmitter including a first transmit digital-to-time converter (DTC) configured to receive the central oscillator signal and to provide a first transmitter signal having a second frequency; anda first receiver, the first receiver including a first receive DTC configured to receive the central oscillator signal and to provide a first receiver signal having a first receive frequency.2. The apparatus of claim 1 , wherein the first transmitter is configured to process and transmit first information according to a first communication protocol; andwherein the first receiver is configured to receive and process second information according to the first communication protocol.3. The apparatus of claim 2 , including a second transmitter claim 2 , the second transmitter including a second transmit DTC claim 2 , the second transmit DTC configured to receive the central frequency and to provide a second transmit signal.4. The apparatus of claim 3 , wherein the second transmitter is configured to process and transmit third information according to a communication protocol different from the first communication protocol. ...

DIRECT DIGITAL FREQUENCY GENERATION USING TIME AND AMPLITUDE

This application discusses, among other things, apparatus and methods for sharing a local oscillator between multiple wireless devices. In certain examples, an apparatus can include a central frequency synthesizer configured to provide a central oscillator signal having a first frequency, a first transmitter, the first transmitter including a first transmit digital-to-time converter (DTC) configured to receive the central oscillator signal and to provide a first transmitter signal having a second frequency, and a first receiver, the first receiver including a first receive DTC configured to receive the central oscillator signal and to provide a first receiver signal having a first receive frequency. 1. An apparatus comprising:an oscillator configured to provide an oscillator signal having an oscillator frequency;a plurality of radios, at least one radio of the plurality of radios including a digital-to-time converter (DTC) and configured to receive the oscillator signal and to operate on a frequency unique from the oscillator frequency.2. The apparatus of claim 1 , wherein a first radio of the plurality of radios includes a first transmitter.3. The apparatus of claim 1 , wherein the first transmitter includes a first transmit DTC configured to receive the oscillator signal and to provide a first transmit signal having a first transmit frequency.4. The apparatus of claim 2 , wherein a second radio of the plurality of radios includes a second transmitter.5. The apparatus of claim 4 , wherein the second transmitter includes a second transmit DTC configured to receive the oscillator signal and to provide a second transmit signal having a second transmit frequency.6. The apparatus of claim 1 , wherein the first radio of the plurality of radios includes a first receiver.7. The apparatus of claim 6 , wherein the first receiver includes a first receive DTC configured to receive the oscillator signal and to provide a first receiver signal having a first receive frequency.8. ...

Frequency generation and synchronization systems and methods

A clock generator can include a Fin Field Effect Transistor (FinFET) oscillator and a phased-locked loop (PLL). The FinFET oscillator can generate a FinFET signal. The PLL can generate an output clock signal based on a reference clock signal and the FinFET signal.

Apparatus and Method for Generating an Oscillator Signal

An apparatus comprises a mechanical resonator-based oscillator module generating a local oscillator signal with a frequency of more than 700 MHz. Further, the apparatus comprises a digital-to-time converter module generating a frequency adapted signal based on the local oscillator signal. 1. An apparatus for generating an oscillator signal comprising:a mechanical resonator based oscillator module configured to generate a local oscillator signal with a frequency of more than 700 MHz; anda digital-to-time converter module configured to generate a frequency adapted signal based on the local oscillator signal.2. The apparatus according to claim 1 , wherein the mechanical resonator based oscillator module is configured to generate the local oscillator signal based on a mechanical resonator element having a resonance frequency of more than 700 MHz.3. The apparatus according to claim 1 , wherein the mechanical resonator based oscillator module is one of the group comprising a bulk acoustic wave based oscillator claim 1 , a surface acoustic wave based oscillator claim 1 , a piezoelectric effect based oscillator and a micro-electro-mechanical-system-based oscillator.4. The apparatus according to claim 1 , wherein the mechanical resonator based oscillator module claim 1 , the digital-to-time converter module and a signal path of the local oscillator signal between the mechanical resonator based oscillator module and the digital-to-time converter module are phase-locked-loop-less.5. The apparatus according to claim 1 , wherein the mechanical resonator based oscillator module claim 1 , the digital-to-time converter module and a signal path of the local oscillator signal between the mechanical resonator based oscillator module and the digital-to-time converter module are coil-less.6. The apparatus according to claim 1 , wherein an inductance between a local oscillator signal input terminal of the digital-to-time converter module and a reference potential terminal is lower 1 nH.7 ...

LO FREQUENCY GENERATION USING RESONATOR

Systems, methods, and circuitries are provided for resonator-based local oscillator signal generation for receiving self-interference signals. An interference cancellation system for a transceiver includes a resonator configured to generate a high-frequency signal and a local oscillator circuitry. The local oscillator circuitry includes a digital-to time converter configured to receive the high-frequency signal and, in response, generate a clock signal for receiving an interfering signal having an interference frequency. Digital cancellation circuitry is configured to adapt operation of the transceiver based, at least in part, on the received interfering signal. 1. An interference cancellation system for a transceiver , comprising:a resonator configured to generate a high-frequency signal; receive the high-frequency signal; and', 'in response, generate a clock signal having a clock frequency for receiving an interfering signal having an interference frequency; and, 'a digital-to time converter configured to, 'a local oscillator circuitry, comprisinga digital cancellation circuitry configured to adapt operation of the transceiver based, at least in part, on the received interfering signal.2. The interference cancellation system of claim 1 , wherein the local oscillator circuitry comprises:a phase locked loop (PLL) configured to synchronize the clock signal generated by the digital-to-time converter with a reference signal; anda divider circuitry configured to generate a local oscillator signal for receiving the interfering signal based on the synchronized clock signal generated by the digital-to-time converter.3. The interference cancellation system of claim 1 , further comprising a second divider circuitry configured to:receive the clock signal and a control word; and,in response, generate a local oscillator signal for receiving a desired signal having a desired signal frequency.4. The interference cancellation system of claim 1 , wherein the clock frequency is ...

TRANSMITTER-RECEIVER DEVICE AND METHOD FOR PROCESSING A SIGNAL

Polar modulator arrangement and polar modulation method

A polar modulator arrangement has a first and a second node to receive a digital signal with a first and a second component corresponding to a digital amplitude component and a digital phase component. A digital interpolation filter generates an interpolated first component by interpolating and filtering the first component. A polar modulated radio frequency signal is generated by a combination element as a function of the interpolated first component and the second component.

Transmission configuration for continuous-time data transmission

Communication devices and methods for direct detection and photonics receiver

The present application relates to devices and components related to a direct detection and photonics receiver.

Transceiver arrangement and method for processing a signal

A transceiver arrangement includes a first receive path with a first connection and a first receive amplifier, and a second receive path with a second connection, a second receive amplifier, and a frequency conversion device. A controllable coupling device is configured to couple an output of the first receive amplifier to an input of the frequency conversion device on the second signal path. Furthermore, the transceiver arrangement includes a control circuit configured to deliver a control signal to the coupling device for combining signals delivered by the first and second receive amplifier in the correct phase based on a signal supplied by the receive paths. This achieves receive diversity wherein, on the one hand, additional external components are no longer necessary and, on the other hand, adequate signal quality is ensured even with a simultaneous transmit process of the transceiver arrangement.

Electronic Devices with High Frequency Reflective Antenna Arrays

An electronic device may include a photonics-based phased antenna array that conveys wireless signals at frequencies greater than 100 GHz. In a transmit mode, the array may transmit signals using the first and second optical signals. In a receive mode, the array may receive signals using the optical signals. In a passive mode, the array may reflect incident wireless signals as reflected signals. Photodiodes in the array may be controlled to exhibit output impedances that are mismatched with respect to input impedances of radiating elements in the array. Different mismatches can be used across the array or as a function of time to impart different phase and/or frequency shifts on the reflected signals. The phase shifts may be used to encode information into the reflected signals and/or to form a signal beam of the reflected signals.

Transceiver unit

The invention relates to a transceiver unit which enables the execution of both the frequency division duplex method (FDD) as well as the time division duplex method (TDD) and enables the operation with frequency division duplex (FDD) with a variable duplex frequency. To this end, a change-over switch (SW) is connected in outgoing circuit to a frequency separating filter (DUP), which can be connected to an antenna (ANT). At the same time, the number of filters and high-frequency switches is low. The receivers are improved with regard to noise and distortions by separating the receive paths for FDD and TDD. The described system can be used, for example, in UMTS transceivers and enables an asymmetric data transmission in which two transmit channels can be combined with a receive channel. The transceiver unit can be easily integrated on a large scale with small spatial requirements.

Receiver, in particular for mobile radio

A receiver, in particular for mobile radio, includes a receiver branch with a mixer, downstream of an analog/digital converter. A reference generator generates a reference clock, which is fed to the converters or PLL synthesizers of the mixer by integral multiplication or division. As a result, a particularly energy-saving and space-saving circuit configuration is realized, which has a low level of mutual interference between the signals and is suitable (in particular for Universal Mobile Telecommunication System, UMTS). In a preferred embodiment, the receiver is developed into a transceiver by providing a transmission path.

Transmission configuration for continuous-time data transmission

The invention relates to a transmission configuration for continuous-time data transmission, whereby at least one programmable amplifier (7, 14) is provided in the baseband (1) or in the high frequency path (3) in the signal processing chain of the signal to be transmitted, instead of the standard automatic gain control means which is controlled by continuous-value control signals. The inventive configuration is characterised in that the signal controlling the programmable amplifier (7, 14) is a discrete-value signal. By eliminating costly digital-analog converters, the cited principle enables the current consumption of CDMA transmitters to be significantly reduced.

Receiver with Photonic Antenna Array

An electronic device may include a receiver having a light source that provides an optical signal to an optical splitter. An optical combiner may be coupled to the optical splitter over a set of parallel optical paths. A phased antenna array may have a set of antennas disposed on the optical paths. Each antenna may include an optical modulator disposed on a respective one of the optical paths and an antenna resonating element coupled to the modulator. Incident radio-frequency signals may produce electrical signals on the antenna resonating elements. Optical phase shifters may provide optical phase shifts to the optical signal. The modulators may modulate the optical local oscillator signal using the electrical signals. The optical combiner may generate a combined signal by combining modulated optical signals from the optical paths. A demodulator may recover wireless data from the radio-frequency signals using the combined signal.

Eine Vorrichtung und ein Verfahren zum Erzeugen von Basisbandempfangssignalen

Eine Vorrichtung (100) zum Erzeugen von Basisbandempfangssignalen, die folgende Merkmale aufweist:ein erstes Analog-zu-Digital-Wandler-Modul (110), das ausgebildet ist, um ein erstes, digitales Hochfrequenzempfangssignal zumindest durch Abtasten eines ersten, analogen Hochfrequenzempfangssignals mit einer ersten Abtastfrequenz von mehr als ungefähr vier Mal einer Bandbreite des ersten Empfangskanals zu erzeugen, wobei das erste, analoge Hochfrequenzempfangssignal erste Nutzdaten in einem ersten Empfangskanal aufweist, der einer ersten Trägerfrequenz zugeordnet ist, und wobei die erste Abtastrate größer ist als 4/M*fmax,rx, wobei fmax,rxdie höchste Trägerfrequenz eines Empfangskanals mit Nutzdaten ist, die in den Basisbandbereich umgewandelt werden sollen, wobei M eine ganze Zahl kleiner als 10 ist;ein erstes, digitales Signalverarbeitungsmodul (120), das ausgebildet ist, um ein erstes Basisbandempfangssignal basierend auf dem ersten, digitalen Hochfrequenzempfangssignal zu erzeugen;ein zweites Analog-zu-Digital-Wandler-Modul (130), das ausgebildet ist, um ein zweites, digitales Hochfrequenzempfangssignal zumindest durch Abtasten eines zweiten analogen Hochfrequenzempfangssignals zu erzeugen, wobei das zweite, analoge Hochfrequenzempfangssignal zweite Nutzdaten in einem zweiten Empfangskanal aufweist, der einer zweiten Trägerfrequenz zugeordnet ist, wobei sich die erste Trägerfrequenz von der zweiten Trägerfrequenz unterscheidet; undein zweites, digitales Signalverarbeitungsmodul (140), das ausgebildet ist, um ein zweites Basisbandempfangssignal basierend auf dem zweiten, digitalen Hochfrequenzempfangssignal zu erzeugen.

Schaltung und Verfahren

Schaltung (100, 200a-200c, 300a-300c, 400a-400d, 800, 800b) mit folgenden Merkmalen:einem Digital-zu-Zeit-Wandler (101, 101a) aufweisend einen Hochfrequenzeingang (101, 101a-1) zum Empfangen eines Hochfrequenzsignals (105), einen Digitaleingang (101-3, 101a-3) zum Empfangen eines ersten Digitalsignals (107, 107a) und einen Hochfrequenzausgang (101-5, 101a-5) zum Bereitstellen einer zeitlich verzögerten Version (109, 109a) des Hochfrequenzsignals (105); undeiner Oszillatoranordnung (103, 103') zum Bereitstellen des Hochfrequenzsignals (105) mit einer Phasenregelschleife (111, 111') zur Einstellung einer Frequenz des Hochfrequenzsignals (105); undwobei der Digital-zu-Zeit-Wandler (101, 101a) ausgebildet ist, um das empfangene Hochfrequenzsignal (105) basierend auf dem an seinem Digitaleingang (101-3, 101a-3) empfangenen ersten Digitalsignal (107, 107a) zeitlich zu verzögern; undwobei das erste Digitalsignal (107, 107a) und das Hochfrequenzsignal (105) derart gewählt sind, dass die Frequenz des Hochfrequenzsignal (105) keine Harmonische der Frequenz der verzögerten Version (109, 109a) des Hochfrequenzsignals (105) ist.

Electronic devices with high frequency reflective antenna arrays

An electronic device may include a photonics-based phased antenna array that conveys wireless signals at frequencies greater than 100 GHz. In a transmit mode, the array may transmit signals using the first and second optical signals. In a receive mode, the array may receive signals using the optical signals. In a passive mode, the array may reflect incident wireless signals as reflected signals. Photodiodes in the array may be controlled to exhibit output impedances that are mismatched with respect to input impedances of radiating elements in the array. Different mismatches can be used across the array or as a function of time to impart different phase and/or frequency shifts on the reflected signals. The phase shifts may be used to encode information into the reflected signals and/or to form a signal beam of the reflected signals.

Electronic devices with low phase noise frequency generation

An electronic device may include clocking circuitry (75) with primary and secondary lasers (116, 102) that generate first and second optical local oscillator, La, signals. A phase-locked loop, PLL, may tune the secondary laser (102) based to phase lock the first and second optical LO signals. A self-injection locking loop path (150) may couple an output of the secondary laser (102) to its input. The self-injection locking loop path (150) may include a first mixer (140) and a second mixer (146). The first mixer (140) may generate a beat signal using the first and second optical LO signals. The second mixer (146) may generate a self-injection locking signal based on the first optical LO signal and the beat signal. A delay line (152) or optical resonator (160) may iteratively self-inject the self-injection locking signal onto the secondary laser (102). This may serve to minimize phase noise and jitter of the optical LO signals.

Electronic Devices with Low Phase Noise Frequency Generation

An electronic device may include clocking circuitry with primary and secondary lasers that generate first and second optical local oscillator (LO) signals. A phase-locked loop (PLL) may tune the secondary laser based to phase lock the first and second optical LO signals. A self-injection locking loop path may couple an output of the secondary laser to its input. The self-injection locking loop path may include a first mixer and a second mixer. The first mixer may generate a beat signal using the first and second optical LO signals. The second mixer may generate a self-injection locking signal based on the first optical LO signal and the beat signal. A delay line or optical resonator may iteratively self-inject the self-injection locking signal onto the secondary laser. This may serve to minimize phase noise and jitter of the optical LO signals.

Location determination using light sources

The present disclosure relates to computer-implemented systems and methods for location determination using light sources. An example method may include receiving, by a computer including one or more processors, a location request for a device within an indoor environment. The method may also include receiving respective light source identifiers associated with one or more light sources in the indoor environment. The one or more light sources may be in communication with the device. Additionally, the method may include accessing, by the computer, a virtual map associated with the indoor environment, and the virtual map may include one or more associations between the respective light source identifiers and respective positions, within the indoor environment, of the one or more light sources. Furthermore, the method may include determining, based at least in part on the virtual map and the respective light source identifiers, a location of the device within the indoor environment.

Communication devices and methods for direct detection and photonics receiver

The present application relates to devices and components related to a direct detection and photonics receiver.

Location determination using light sources

The present disclosure relates to computer-implemented systems and methods for location determination using light sources. An example method may include receiving, by a computer including one or more processors, a location request for a device within an indoor environment. The method may also include receiving respective light source identifiers associated with one or more light sources in the indoor environment. The one or more light sources may be in communication with the device. Additionally, the method may include accessing, by the computer, a virtual map associated with the indoor environment, and the virtual map may include one or more associations between the respective light source identifiers and respective positions, within the indoor environment, of the one or more light sources. Furthermore, the method may include determining, based at least in part on the virtual map and the respective light source identifiers, a location of the device within the indoor environment.

Leistungssparende Technik für Digital-Zeit-Wandler

Drahtloses Gerät, umfassend:einen Digital-Zeit-Wandler (DTC) (107), so konfiguriert, um Phaseninformationen von einem Basisbandprozessor zu empfangen und ein erstes Modulationssignal zur Erzeugung eines drahtlosen Signals bereitzustellen; undeinen Detektor, so konfiguriert, um eine Änderung der Sendeleistung des drahtlosen Gerätes zu detektieren, und um als Reaktion auf eine Änderung der Sendeleistung mindestens einen Teil des DTC zu aktivieren oder zu deaktivieren;wobei der DTC einen ersten Rauschformer (313) beinhaltet, der in einem Prozesspfad des DTC angeordnet ist; undwobei der Detektor so konfiguriert ist, um als Reaktion auf eine Änderung der Sendeleistung einen Parameter des ersten Rauschformers (313) einzustellen.

Electronic devices with high frequency wireless communication capabilities

An electronic device may include an antenna that conveys wireless signals at frequencies greater than 100 GHz. The antenna may include a radiating element coupled to a uni-travelling-carrier photodiode (UTC PD). An optical path may illuminate the UTC PD using a first optical local oscillator (LO) signal and a second optical LO signal. An optical phase shift may be applied to the first optical LO signal. A Mach-Zehnder modulator (MZM) may be interposed on the optical path. During signal transmission, the MZM may modulate wireless data onto the second optical LO signal while control circuitry applies a first bias voltage to the UTC PD. During signal reception, the control circuitry may apply a second bias voltage to the UTC PD that configures the UTC PD to convert received wireless signals into intermediate frequency signals and/or optical signals.

Electronic devices with high frequency reflective antenna arrays

An electronic device may include a photonics-based phased antenna array that conveys wireless signals at frequencies greater than 100 GHz. In a transmit mode, the array may transmit signals using the first and second optical signals. In a receive mode, the array may receive signals using the optical signals. In a passive mode, the array may reflect incident wireless signals as reflected signals. Photodiodes in the array may be controlled to exhibit output impedances that are mismatched with respect to input impedances of radiating elements in the array. Different mismatches can be used across the array or as a function of time to impart different phase and/or frequency shifts on the reflected signals. The phase shifts may be used to encode information into the reflected signals and/or to form a signal beam of the reflected signals.

Electronic devices with high frequency multiplexing capabilities

A communication system may an optical signal generator and a signal path. The generator may generate one or more optical local oscillator (LO) signals and an optical frequency comb. Optical paths and an optical demultiplexer may distribute the optical LO signal(s) and the frequency comb to photodiodes in one or more access points. The photodiodes may be coupled to antenna radiating elements. The optical paths may illuminate each photodiode using a signal pair that includes one of the optical LO signals and one of the carriers from the frequency comb. The photodiodes may convey wireless signals using the antenna radiating elements at frequencies given by the differences in frequency between the signals in the signal pairs. The radiating elements may concurrently convey the wireless signals with different external devices at different frequencies, with different devices at the same frequency, and/or with the same device at the same frequency.

Electronic Devices with Optical Self-Injection Loops

An electronic device may include wireless circuitry that conveys radio-frequency signals at frequencies greater than or equal to 100 GHz using first and second optical local oscillator (LO) signals generated by clocking circuitry. The clocking circuitry may include a first laser that generates the first optical LO signal and a second laser that generates the second optical LO signal. First and second self-injection locking loop paths may be coupled around the first and second lasers respectively. The first loop path may include a first mixer, an optical reference, and a second mixer. The second loop path may include a photodiode, the first mixer, and the optical reference. The photodiode may provide a radio-frequency signal to the mixers. The optical reference may include an optical delay line or resonator and may reduce phase noise of optical signals used to self-injection lock the first and second lasers.

Electronic Device with Fully-Connected Photonic Antenna Array

An electronic device may include a fully-connected photonic phased antenna array having a set of antennas, each with an antenna resonating element coupled to a set of photodiodes. Optical modulators may receive different wireless data streams and may generate modulated signals. Optical paths may provide the modulated signals generated by each modulator to a different photodiode in each antenna. Sets of optical phase shifters may apply different sets of phase shifts for each of the modulated signals. Optical paths may provide the phase shifted signals to the photodiodes in the antennas. The photodiodes may produce currents that are superposed on the antenna resonating elements. Each antenna may be used to concurrently convey all of the wireless data streams. The phase shifts may configure the array to transmit signals that include the wireless data streams within different respective signal beams.

Electronic devices having electro-optical phase-locked loops

An electronic device may include wireless circuitry clocked using an electro-optical phase-locked loop (OPLL) having primary and secondary lasers. A frequency-locked loop (FLL) path and a phase-locked loop (PLL) path may couple an output of the secondary laser to its input. A photodiode may generate a photodiode signal based on the laser output. A digital-to-time converter (DTC) may generate a reference signal. The FLL path may coarsely tune the secondary laser based on the photodiode signal until the secondary laser is frequency locked. Then, the PLL path may finely tune the secondary laser based on the reference signal and the photodiode signal until the phase of the secondary laser is locked to the primary laser. The photodiode signal may be subsampled on the PLL path. This may allow the OPLL to generate optical local oscillator signals with minimal jitter and phase noise.

Electronic devices with high frequency reflective antenna arrays

An electronic device may include a photonics-based phased antenna array that conveys wireless signals at frequencies greater than 100 GHz. In a transmit mode, the array may transmit signals using the first and second optical signals. In a receive mode, the array may receive signals using the optical signals. In a passive mode, the array may reflect incident wireless signals as reflected signals. Photodiodes in the array may be controlled to exhibit output impedances that are mismatched with respect to input impedances of radiating elements in the array. Different mismatches can be used across the array or as a function of time to impart different phase and/or frequency shifts on the reflected signals. The phase shifts may be used to encode information into the reflected signals and/or to form a signal beam of the reflected signals.

Electronic Devices with High Frequency Reflective Antenna Arrays

An electronic device may include a photonics-based phased antenna array that conveys wireless signals at frequencies greater than 100 GHz. In a transmit mode, the array may transmit signals using the first and second optical signals. In a receive mode, the array may receive signals using the optical signals. In a passive mode, the array may reflect incident wireless signals as reflected signals. Photodiodes in the array may be controlled to exhibit output impedances that are mismatched with respect to input impedances of radiating elements in the array. Different mismatches can be used across the array or as a function of time to impart different phase and/or frequency shifts on the reflected signals. The phase shifts may be used to encode information into the reflected signals and/or to form a signal beam of the reflected signals.

Electronic devices with power boosting for high frequency communication

An electronic device (10) may include wireless circuitry (24) with light sources, a set of photodiodes (42), a resonating element (36), and a common gate amplifier, CGA (96). In a transmit mode, the photodiodes (42) may use optical local oscillators to generate equal portions of an antenna current amplified by the CGA (96) for transmission by the resonating element (36). In a receive mode, the resonating element (36) may generate an antenna current which is amplified by the amplifier (96) and passed to the photodiodes (42). Including multiple photodiodes coupled to the amplifier in a current sharing configuration may serve to boost power. The amplifier may exhibit a wide bandwidth, may perform impedance matching between the resonating element and the photodiodes, and may isolate the photodiodes from antenna mismatch. The antenna may be integrated into a phased antenna array to further boost power.

Electronic devices with power boosting for high frequency communication

An electronic device (10) may include wireless circuitry (24) with light sources, a set of photodiodes (42), a resonating element (36), and a common gate amplifier, CGA (96). In a transmit mode, the photodiodes (42) may use optical local oscillators to generate equal portions of an antenna current amplified by the CGA (96) for transmission by the resonating element (36). In a receive mode, the resonating element (36) may generate an antenna current which is amplified by the amplifier (96) and passed to the photodiodes (42). Including multiple photodiodes coupled to the amplifier in a current sharing configuration may serve to boost power. The amplifier may exhibit a wide bandwidth, may perform impedance matching between the resonating element and the photodiodes, and may isolate the photodiodes from antenna mismatch. The antenna may be integrated into a phased antenna array to further boost power.

Electronic devices having electro-optical phase-locked loops

An electronic device may include wireless circuitry clocked using an electro-optical phase-locked loop (OPLL) having primary and secondary lasers. A frequency-locked loop (FLL) path and a phase-locked loop (PLL) path may couple an output of the secondary laser to its input. A photodiode may generate a photodiode signal based on the laser output. A digital-to-time converter (DTC) may generate a reference signal. The FLL path may coarsely tune the secondary laser based on the photodiode signal until the secondary laser is frequency locked. Then, the PLL path may finely tune the secondary laser based on the reference signal and the photodiode signal until the phase of the secondary laser is locked to the primary laser. The photodiode signal may be subsampled on the PLL path. This may allow the OPLL to generate optical local oscillator signals with minimal jitter and phase noise.

Electronic Devices with High Frequency Wireless Communication Capabilities

An electronic device may include an antenna that conveys wireless signals at frequencies greater than 100 GHz. The antenna may include a radiating element coupled to a uni-travelling-carrier photodiode (UTC PD). An optical path may illuminate the UTC PD using a first optical local oscillator (LO) signal and a second optical LO signal. An optical phase shift may be applied to the first optical LO signal. A Mach-Zehnder modulator (MZM) may be interposed on the optical path. During signal transmission, the MZM may modulate wireless data onto the second optical LO signal while control circuitry applies a first bias voltage to the UTC PD. During signal reception, the control circuitry may apply a second bias voltage to the UTC PD that configures the UTC PD to convert received wireless signals into intermediate frequency signals and/or optical signals.

Apparatus and a method for providing oscillator signals

An apparatus for providing oscillator signals includes a first digital-to-time converter module configured to generate a first oscillator signal based on a first adapted input signal, a second digital-to-time converter module configured to generate a second oscillator signal; and a first processing module configured to generate the first adapted input signal of the first digital-to-time converter module by adding noise to a first input signal.

Electronic devices with shared phase shifting for high frequency communication

An electronic device may include light sources that generate first and second optical signals. An array may include antennas arranged in rows and columns. First paths may be coupled to each row of the array and second paths may be coupled to each column of the array. First phase shifters may be disposed on the first paths and second phase shifters may be disposed on the second paths. The first phase shifters may apply respective phase shifts to the first optical signal to produce shifted signals for each row. The second phase shifters may apply respective phase shifts to the second optical signal to produce shifted signals for each column. Each antenna may convey wireless signals based on the shifted signals provided to its row and column. Sharing phase shifters in this way may allow the array to perform beam steering while minimizing the number of phase shifters.

Frequency generation and synchronization systems and methods

A clock generator can include a Fin Field Effect Transistor (FinFET) oscillator and a phased-locked loop (PLL). The FinFET oscillator can generate a FinFET signal. The PLL can generate an output clock signal based on a reference clock signal and the FinFET signal.

Frequency generation and synchronization systems and methods

A clock generator can include a Fin Field Effect Transistor (FinFET) oscillator and a phased-locked loop (PLL). The FinFET oscillator can generate a FinFET signal. The PLL can generate an output clock signal based on a reference clock signal and the FinFET signal.

Electronic devices with high frequency wireless communication capabilities

An electronic device may include an antenna that conveys wireless signals at frequencies greater than 100 GHz. The antenna may include a radiating element coupled to a uni-travelling-carrier photodiode (UTC PD). An optical path may illuminate the UTC PD using a first optical local oscillator (LO) signal and a second optical LO signal. An optical phase shift may be applied to the first optical LO signal. A Mach-Zehnder modulator (MZM) may be interposed on the optical path. During signal transmission, the MZM may modulate wireless data onto the second optical LO signal while control circuitry applies a first bias voltage to the UTC PD. During signal reception, the control circuitry may apply a second bias voltage to the UTC PD that configures the UTC PD to convert received wireless signals into intermediate frequency signals and/or optical signals.

Electronic Devices with High Frequency Wireless Communication Capabilities

An electronic device may include an antenna that conveys wireless signals at frequencies greater than 100 GHz. The antenna may include a radiating element coupled to a uni-travelling-carrier photodiode (UTC PD). An optical path may illuminate the UTC PD using a first optical local oscillator (LO) signal and a second optical LO signal. An optical phase shift may be applied to the first optical LO signal. A Mach-Zehnder modulator (MZM) may be interposed on the optical path. During signal transmission, the MZM may modulate wireless data onto the second optical LO signal while control circuitry applies a first bias voltage to the UTC PD. During signal reception, the control circuitry may apply a second bias voltage to the UTC PD that configures the UTC PD to convert received wireless signals into intermediate frequency signals and/or optical signals.

Electronic Devices with Shared Phase Shifting for High Frequency Communication

An electronic device may include light sources that generate first and second optical signals. An array may include antennas arranged in rows and columns. First paths may be coupled to each row of the array and second paths may be coupled to each column of the array. First phase shifters may be disposed on the first paths and second phase shifters may be disposed on the second paths. The first phase shifters may apply respective phase shifts to the first optical signal to produce shifted signals for each row. The second phase shifters may apply respective phase shifts to the second optical signal to produce shifted signals for each column. Each antenna may convey wireless signals based on the shifted signals provided to its row and column. Sharing phase shifters in this way may allow the array to perform beam steering while minimizing the number of phase shifters.

Electronic devices with high frequency reflective antenna arrays

An electronic device may include a photonics-based phased antenna array that conveys wireless signals at frequencies greater than 100 GHz. In a transmit mode, the array may transmit signals using the first and second optical signals. In a receive mode, the array may receive signals using the optical signals. In a passive mode, the array may reflect incident wireless signals as reflected signals. Photodiodes in the array may be controlled to exhibit output impedances that are mismatched with respect to input impedances of radiating elements in the array. Different mismatches can be used across the array or as a function of time to impart different phase and/or frequency shifts on the reflected signals. The phase shifts may be used to encode information into the reflected signals and/or to form a signal beam of the reflected signals.

Receiver with photonic antenna array

An electronic device may include a receiver having a light source that provides an optical signal to an optical splitter. An optical combiner may be coupled to the optical splitter over a set of parallel optical paths. A phased antenna array may have a set of antennas disposed on the optical paths. Each antenna may include an optical modulator disposed on a respective one of the optical paths and an antenna resonating element coupled to the modulator. Incident radio-frequency signals may produce electrical signals on the antenna resonating elements. Optical phase shifters may provide optical phase shifts to the optical signal. The modulators may modulate the optical local oscillator signal using the electrical signals. The optical combiner may generate a combined signal by combining modulated optical signals from the optical paths. A demodulator may recover wireless data from the radio-frequency signals using the combined signal.

Electronic Device with Digital Frequency Discriminator for Wireless Communication

An electronic device may include wireless circuitry that conveys wireless signals and that is clocked using clocking circuitry. The clocking circuitry may include a signal source that generates a clock signal and a loop path coupled between the input and the output of the signal source. A digital frequency discriminator (DFD) may be disposed on the loop path. The DFD may include a digital delay and digital phase shifter coupled between an input converter and a digital mixer. The DFD may receive the clock signal and may generate a control signal indicative of phase noise of the clock signal. The DFD may feed the control signal back into the input of the signal source to mitigate the phase noise. The DFD may minimize phase noise of the signal source while minimizing space and power consumption on the device relative to analog frequency discriminators.

Apparatus and method for generating an oscillator signal

An apparatus comprises a mechanical resonator-based oscillator module generating a local oscillator signal with a frequency of more than 700 MHz. Further, the apparatus comprises a digital-to-time converter module generating a frequency adapted signal based on the local oscillator signal.

Direct digital frequency generation using time and amplitude

This application discusses, among other things, apparatus and methods for sharing a local oscillator between multiple wireless devices. In certain examples, an apparatus can include a central frequency synthesizer configured to provide a central oscillator signal having a first frequency, a first transmitter, the first transmitter including a first transmit digital-to-time converter (DTC) configured to receive the central oscillator signal and to provide a first transmitter signal having a second frequency, and a first receiver, the first receiver including a first receive DTC configured to receive the central oscillator signal and to provide a first receiver signal having a first receive frequency.

Apparatus and method for generating base band receive signals

An apparatus for generating base band receive signals includes a first analog-to-digital converter module generating a first digital high frequency receive signal at least by sampling a first analog high frequency receive signal, a first digital signal processing module generating a first base band receive signal based on the first digital high frequency receive signal, a second analog-to-digital converter module generating a second digital high frequency receive signal at least by sampling a second analog high frequency receive signal and a second digital signal processing module generating a second base band receive signal based on the second digital high frequency receive signal. The first analog high frequency receive signal comprises first payload data at a first receive channel associated with a first carrier frequency and the second analog high frequency receive signal comprises second payload data at a second receive channel associated with a second carrier frequency.