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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 6371. Отображено 100.
05-01-2012 дата публикации

Output Impedance Compensation for Voltage Regulators

Номер: US20120001702A1
Автор: John W. Bau
Принадлежит: Individual

Method and circuit topology for an impedance compensation circuit (ICC), for compensating a DC voltage regulator circuit (RC). The ICC comprises individual components that are workable in combination with an inherent output impedance characteristic of the RC. The components are optimizable for providing a substantially uniform AC output impedance characteristic and impedance phase over a first defined frequency range and an operating idle current under a load, by creating a condition where a source impedance and a load impedance are complex conjugates. The source impedance is a series combination of the inherent output impedance characteristic of the RC and a first impedance due to a first portion of the individual components. The load impedance is a parallel combination of a second impedance due to a second portion of the individual components and the load, when the ICC is configured with the RC and the load.

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Номер записи: 1
19-01-2012 дата публикации

Impedance matching system and operating method thereof

Номер: US20120016611A1
Автор: Ju Young Song
Принадлежит: LG Innotek Co Ltd

An impedance matching system is provided. The impedance matching system includes an impedance matching apparatus and an impedance analysis apparatus. The impedance matching apparatus varies a capacitance value of a capacitor according to an applied voltage value, and matches an impedance according to the varied capacitance value. The impedance analysis apparatus supplies a voltage for varying the capacitance value to an impedance matching circuit, and determines an impedance value, changed according to the voltage value, to analyze characteristic of a capacitor included in the impedance matching apparatus.

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Номер записи: 2
26-01-2012 дата публикации

Dynamic impedance control for input/output buffers

Номер: US20120019282A1
Автор: Bruce Millar
Принадлежит: Mosaid Technologies Inc

A system and method of performing off chip drive (OCD) and on-die termination (ODT) are provided. A common pull-up network composed of transistors and a common pull-down network composed of transistors are employed to implement both of these functions. In drive mode, the pull-up network is configured to produce a calibrated drive impedance when an “on” output is to be generated, and the pull-up network is configured to produce a calibrated drive impedance when an “off” output is to be generated. In termination mode, the pull-up network and the pull-down network are configured to produce a calibrated pull-up resistance and pull-down resistance respectively such that together, they form a split termination.

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Номер записи: 3
01-03-2012 дата публикации

Adaptive Impedance Matching Module (AIMM) Control Architectures

Номер: US20120049975A1
Автор: Greg Mendolia, Heinz Bachmann, William E. McKinzie, III
Принадлежит: Paratek Microwave Inc

A system that incorporates teachings of the present disclosure can include, for example, determining at a port of a matching network reflection information from a signal sampled across at least one predetermined fixed-value reactance component, generating at least one control signal according to the reflection information, and tuning the matching network with the at least one control signal, where the matching network comprises one or more controllable variable reactive elements each with an independent control voltage. Additional embodiments are disclosed.

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Номер записи: 4
29-03-2012 дата публикации

Antenna matching circuit control device

Номер: US20120075159A1
Автор: Chia-Hao Chang, Kuo-Chu Liao, Meng-Huan Wu
Принадлежит: ASUSTeK Computer Inc

The antenna matching circuit control device with an antenna body includes a sensing module, a processing module, a power adjusting module and a frequency adjusting module. The sensing module senses an object that approaches the antenna body and outputs a sensing signal accordingly. The processing module is coupled to the sensing module and outputs a first control signal and a second control signal according to the sensing signal. The power adjusting module is coupled to the processing module and controls a power amplifier to couple with one of a plurality of first matching circuits according to the first control signal. The frequency adjusting module is coupled to the antenna body and the power adjusting module. The frequency adjusting module controls one of a plurality of second matching circuits to couple with one of the first matching circuits according to the second control signal.

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Номер записи: 5
10-05-2012 дата публикации

Matching segment circuit to which radio frequency is applied and radio frequency integrated devices using the matching segment circuit

Номер: US20120112850A1
Автор: Chul Soo Kim, Duck Hwan Kim, In Sang Song, Jea Shik Shin, Young Il Kim
Принадлежит: SAMSUNG ELECTRONICS CO LTD

Provided are a matching segment circuit, to which a radio frequency (RF) is applied, and an RF integrated device using the matching segment circuit. The matching segment circuit to which an RF is applied may include an input end connected to a first RF device, a parallel segment having a first capacitor and a first inductor connected in parallel, a second inductor connected to the parallel segment in series, and an output end connected to a second RF device. The first capacitor, the first inductor, and the second inductor may be configured so that an impedance of the first RF device and an impedance of the second RF device may match.

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Номер записи: 6
28-06-2012 дата публикации

Metamaterial power amplifier systems

Номер: US20120161867A1
Автор: Ajay Gummalla, Alexandre Dupuy, Maha Achour
Принадлежит: Hollinworth Fund LLC

Power amplifying systems and modules and components therein are designed based on CRLH structures, providing high efficiency and linearity.

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Номер записи: 7
28-06-2012 дата публикации

Apparatus for collecting wireless energy and wireless electronic label employing the apparatus

Номер: US20120163049A1
Автор: Hyung-Chul Kim, Min-geun SONG, Sung-Chan Jung, Youngoo Yang
Принадлежит: Samsung Techwin Co Ltd, Sungkyunkwan University Foundation For Corporate Collaboration

An apparatus for collecting wireless is provided. The apparatus includes an antenna and a collection circuit. The antenna generates an alternating current (AC) voltage from a radio wave. The collection circuit generates a direct current (DC) voltage corresponding to the AC voltage, determines whether the DC voltage is lower than a preset value, and changes an internal impedance of the collection circuit if it is determined that the DC voltage is lower than the preset voltage.

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Номер записи: 8
12-07-2012 дата публикации

Dynamic Impedance Matching with LNA

Номер: US20120178395A1
Автор: Ahmadreza Rofougaran, Maryam Rofougaran
Принадлежит: Broadcom Corp

Aspects of a method and system for LNA adjustment to compensate for dynamic impedance matching are provided. In this regard, an antenna matching network may be configured to maximize received signal strength for a determined frequency and an amplifier gain may be adjusted based on the maximized signal strength such that output levels of the amplifier are between specified limits. The antenna matching network may be programmatically controlled via one or more switching elements. The amplifier gain may be programmatically controlled via one or more bias points. The antenna matching network may be configured for a plurality of frequencies in a frequency band, such as an FM broadcast band, and a configuration for each frequency may be stored. Accordingly, when the receiver is tuned to a frequency, a corresponding configuration may be retrieved from memory.

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Номер записи: 9
30-08-2012 дата публикации

Wireless ic device and electronic apparatus

Номер: US20120217312A1
Автор: Ikuhei KIMURA, Mikiko Tanaka, Noboru Kato, Nobuo IKEMOTO, Satoshi Ishino, Takeshi Kataya, Yuya DOKAI
Принадлежит: Murata Manufacturing Co Ltd

A wireless IC device that is miniaturized, allows simple and low-cost mounting of a wireless IC, and eliminates the possibility of damage occurring to the wireless IC due to static electricity, and an electronic apparatus equipped with the wireless IC device, includes a wireless IC chip that processes transmission and reception signals, and a feeder circuit substrate that includes a resonant circuit having an inductance element. Feeder electrodes are provided on a surface of the feeder circuit substrate and are electromagnetically coupled to the resonant circuit. The feeder electrodes and are electromagnetically coupled to radiation plates and provided for a printed wiring board. The wireless IC chip is activated by a signal received by the radiation plates and a response signal from the wireless IC chip is radiated outward from the radiation plates.

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Номер записи: 10
01-11-2012 дата публикации

High-frequency signal transmission line

Номер: US20120274423A1
Автор: Noboru Kato
Принадлежит: Murata Manufacturing Co Ltd

A flexible high-frequency signal transmission line includes a dielectric body including laminated flexible dielectric layers. A signal line is provided in the dielectric body. A grounding conductor is arranged in the dielectric body to be opposed to the signal line via one of the dielectric layers. The grounding conductor is of a ladder structure including a plurality of openings and a plurality of bridges arranged alternately along the signal line. A characteristic impedance of the signal line changes between two adjacent ones of the plurality of bridges such that the characteristic impedance of the signal line rises from a minimum value to an intermediate value and to a maximum value and falls from the maximum value to the intermediate value and to the minimum value in this order.

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Номер записи: 11
29-11-2012 дата публикации

Balanced impedance method for differential signaling

Номер: US20120299618A1
Автор: Mark Sayuk, Ronald Kapusta
Принадлежит: Analog Devices Inc

A system and method for implementing a differential signaling driver with a common-mode voltage not equal to one half the power supply voltage using voltage-mode techniques. Embodiments of the present invention maintain balanced impedance at the signal output. In an embodiment, a driver may have multiple operating modes for each potential supply voltage or common-mode voltage. In an embodiment, each potential mode may involve configuring the driver by activating or deactivating switches or resistors in the driver and each potential mode may have different resistor values.

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Номер записи: 12
06-12-2012 дата публикации

Impedance-matching transformers for rf driven co2 gas discharge lasers

Номер: US20120307852A1
Автор: Frederick W. Hauer, Patrick T. Tracy
Принадлежит: Coherent Inc

In a CO 2 gas discharge laser energized by a radio frequency (RF) power source a transformer having selectively variable output impedance is used to match output impedance of the power source to the impedance of discharge electrodes of the laser. A similar transformer can be used to impose a selective variable phase-shift on the RF power from the source. The variable impedance transformer can also be used for impedance matching between amplifier stages in the power source.

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Номер записи: 13
31-01-2013 дата публикации

Discrete digital receiver with sample memory

Номер: US20130028351A1
Автор: Ahmadreza (Reza) Rofougaran, Hooman Darabi
Принадлежит: Broadcom Corp

A receiver includes a sample and hold module, sample memory, a discrete time filter module, and a conversion module. The sample and hold module is operable to sample and hold an inbound wireless signal to produce a frequency domain sample pulse train. The sample memory is operable to store sample pulses of the frequency domain sample pulse train to produce a stored sample pulse train. The discrete time filter module is operable to filter the stored sample pulse train to produce a filtered sample pulse. The conversion module is operable to convert the filtered sample pulse into an inbound baseband signal.

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Номер записи: 14
31-01-2013 дата публикации

Multiple input discrete digital receiver

Номер: US20130028363A1
Автор: Ahmadreza (Reza) Rofougaran, Hooman Darabi
Принадлежит: Broadcom Corp

A receiver includes a sample and hold module, a discrete time filter module, and a conversion module. The sample and hold module is operable to sample and hold a first inbound wireless signal and a second inbound wireless signal to produce a frequency domain sample pulse train. The discrete time filter module is operable to filter the frequency domain sample pulse train to produce a first filtered sample pulse corresponding to the first inbound wireless signal and to produce a second filtered sample pulse corresponding to the second inbound wireless signal. The conversion module is operable to convert the first filtered sample pulse into a first inbound baseband signal and to convert the second filtered sample pulse into a second inbound baseband signal.

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Номер записи: 15
25-04-2013 дата публикации

METHOD FOR DESIGNING AN ELECTRONIC CIRCUIT

Номер: US20130099874A1
Автор: BROMBERGER Christoph
Принадлежит:

An electronic circuit and method for designing an electronic circuit is provided that includes a first source element, a second source element, a first matching network, and a second matching network. The first matching network and the second matching network are designed by means of a method using the Poincaré distance, in which the second source element is designed to output a signal with a center frequency, in which the load has a load impedance, in which the second matching network has line-like series elements that carry the signal. The line-like series elements only have line impedances less than the load impedance or a sum of the electrical lengths of the line-like series elements, each of which has a line impedance greater than the load impedance, is less than one quarter of a wavelength associated with the signal. 4. The method according to claim 1 , wherein the first parameter is a mismatch between the transformed first source reflection factor and the first load reflection factor.5. The method according to claim 1 , wherein a predetermined mismatch between the transformed first source reflection factor and the first load reflection factor is a part of the first parameter as a boundary condition.9. The method according to claim 8 ,wherein the circuit has a first source element with a first source output and with a first source reflection factor,wherein the circuit has a second source element with a second source output and with a second source reflection factor,wherein the circuit has a load,wherein the circuit has a T-section with a first input, a second input, and an output,wherein the T-section has a first load reflection factor into the first input,wherein the T-section has a second load reflection factor into the second input,wherein the output of the T-section is connected to the load,wherein the circuit has a first matching network with a first connection and a second connection,wherein the second connection is connected to the first source output ...

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Номер записи: 16
09-05-2013 дата публикации

Wireless power transmission system and method based on impedance matching condition

Номер: US20130113298A1
Автор: Chang Wook YOON, Dong Zo Kim, Eun Seok Park, Jin Sung Choi, Keum Su SONG, Ki Young Kim, Nam Yun Kim, Sang Wook KWON, Young Ho Ryu, Yun Kwon Park
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A wireless power transmission system and a method based on an impedance matching condition are provided. A source device of the wireless power transmission system, includes a power converter configured to generate power. The source device further includes a resonator configured to transmit the power to a target device. A ratio of an input impedance of the resonator to an output impedance of the power converter is less than a reference value.

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Номер записи: 17
30-05-2013 дата публикации

TCCT MATCH CIRCUIT FOR PLASMA ETCH CHAMBERS

Номер: US20130135058A1
Автор: LONG Maolin, Marsh Ricky, Paterson Alex
Принадлежит:

A match circuit includes the following: a power input circuit coupled to an RF source; an inner coil input circuit coupled between the power input circuit and an input terminal of an inner coil, the inner coil input circuit including an inductor and a capacitor coupled in series to the inductor, the inductor connecting to the power input circuit, and the capacitor connecting to the input terminal of the inner coil, a first node being defined between the power input circuit and the inner coil input circuit; an inner coil output circuit coupled between an output terminal of the inner coil and ground, the inner coil output circuit defining a direct pass-through connection to ground; an outer coil input circuit coupled between the first node and an input terminal of an outer coil; and an outer coil output circuit coupled between an output terminal of the outer coil and ground. 1. A match circuit coupled between an RF source and a plasma chamber , the match circuit comprising:a power input circuit, the power input circuit coupled to an RF source;an inner coil input circuit coupled between the power input circuit and an input terminal of an inner coil, the inner coil input circuit including an inductor and a capacitor coupled in series to the inductor, the inductor connecting to the power input circuit, and the capacitor connecting to the input terminal of the inner coil, a first node being defined between the power input circuit and the inner coil input circuit;an inner coil output circuit coupled between an output terminal of the inner coil and ground, the inner coil output circuit defining a direct pass-through connection to ground;an outer coil input circuit coupled between the first node and an input terminal of an outer coil;an outer coil output circuit coupled between an output terminal of the outer coil and ground.2. The match circuit of claim 1 ,wherein the capacitor is a variable capacitor having a rating of between about 150 pF to about 1500 pF; andwherein the ...

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Номер записи: 18
20-06-2013 дата публикации

Bonding wire impedance matching circuit

Номер: US20130154760A1
Автор: Hyung Sung Tae, Jong Won Yu, Ki Jin Kim, Kwang Ho Ahn, Sang Hoon Park
Принадлежит: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

An impedance matching circuit is provided. The present impedance matching circuit is able to match impedance using a transformer which is arranged inside a dielectric substrate and arranged to overlap with a bonding pad area and an end of a transmission line, thereby enabling transmitting signals at a desired frequency with a minimum insertion loss without using a very thin transmission line which is several to dozens of μm wide or specially designed antennas in order to compensate for inductance. Thus, the present impedance matching circuit may be applied to various millimeter bands.

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Номер записи: 19
18-07-2013 дата публикации

MATCHING CIRCUIT SYSTEM

Номер: US20130181788A1
Автор: Wan Kuang-Lieh
Принадлежит: RICHWAVE TECHNOLOGY CORP.

A matching circuit system includes a first inductor, a first capacitor, a second inductor, a second capacitor, a third inductor, and a third capacitor. The first inductor has a first terminal and a second terminal. The first capacitor has a first terminal coupled to the first terminal of the first inductor, and a second terminal. The second inductor has a first terminal coupled to the second terminal of the first capacitor, and a second terminal coupled to ground. The second capacitor has a first terminal coupled to the first terminal of the first capacitor, and a second terminal. The third capacitor has a first terminal coupled to the second terminal of the second capacitor, and a second terminal. The third inductor has a first terminal coupled to the first terminal of the second capacitor, and a second terminal coupled to the second terminal of the second capacitor. 1. A matching circuit system , comprising:a first inductor having a first terminal;a first capacitor having a first terminal coupled to the first terminal of the first inductor, and a second terminal;a second inductor having a first terminal coupled to the second terminal of the first capacitor, and a second terminal coupled to ground;a second capacitor having a first terminal coupled to the first terminal of the first capacitor, and a second terminal;a third capacitor having a first terminal coupled to the second terminal of the second capacitor; anda third inductor having a first terminal coupled to the first terminal of the second capacitor, and a second terminal coupled to the second terminal of the second capacitor.2. The matching circuit system of claim 1 , further comprising:an output stage circuit having a first terminal coupled to the second terminal of the third capacitor, and a second terminal coupled to the ground.3. The matching circuit system of claim 1 , further comprising:an input stage circuit coupled to the second terminal of the first inductor.4. The matching circuit system of claim ...

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Номер записи: 20
25-07-2013 дата публикации

IMPEDANCE CONVERTING CIRCUIT AND COMMUNICATION TERMINAL APPARATUS

Номер: US20130187824A1
Автор: ISHIZUKA Kenichi, KATO Noburo, UEKI Noriyuki
Принадлежит: MURATA MANUFACTURING CO., LTD.

An impedance converting circuit module includes a first matching circuit, a feeding-circuit-side matching circuit interposed between the first matching circuit and a feeding circuit, and an antenna-side matching circuit interposed between the first matching circuit and a radiating element. The feeding-circuit-side matching circuit performs impedance matching between a feeding port of the feeding circuit and the first matching circuit, and the antenna-side matching circuit performs impedance matching between a port of the radiating element and the first matching circuit. 1. An impedance converting circuit connected between a first high-frequency circuit and a second high-frequency circuit , the impedance converting circuit comprising:a first matching circuit including a first inductance element connected to the first high-frequency circuit, and a second inductance element connected to the second high-frequency circuit and coupled to the first inductance element; anda second matching circuit connected at least between the first matching circuit and the first high-frequency circuit or between the first matching circuit and the second high-frequency circuit, the second matching circuit including a reactance element including at least one of a capacitance element and an inductance element.2. The impedance converting circuit according to claim 1 , wherein the first high-frequency circuit is a feeding circuit claim 1 , and the second high-frequency circuit is a radiating element.3. The impedance converting circuit according to claim 1 , wherein the reactance element in the second matching circuit includes at least a capacitance element that defines a parallel resonant circuit together with the first inductance element or the second inductance element.4. The impedance converting circuit according to claim 3 , wherein the second matching circuit includes a first matching circuit element including a first capacitance element shunt-connected between the first matching circuit ...

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Номер записи: 21
25-07-2013 дата публикации

TUNABLE MATCHING NETWORK FOR ANTENNA SYSTEMS

Номер: US20130187828A1
Автор: Desclos Laurent, DUPUY Alexandre, YOON Chun-Su
Принадлежит: ETHERTRONICS, INC.

A communication system is provided, including an antenna, a matching network coupled to the antenna, a controller configured to control the matching network, and a look-up table coupled to the controller. The look-up table includes characterization data according to frequency bands and conditions. The controller is configured to refer to the look-up table to determine optimum impedance for a frequency band selected under a condition detected during a time interval, and adjust the matching network to provide the optimum impedance. 2. The communication system of claim 1 , whereinthe matching network comprises a plurality of first cells coupled to a plurality of switches, respectively, whereineach of the plurality of first cells comprises one or more components.3. The communication system of claim 2 , whereinthe controller is configured to adjust the matching network by turning on one or more of the plurality of switches to provide the optimum impedance for the frequency band and the condition, based on one or more of the plurality of first cells coupled respectively to the one or more of the plurality of switches that are turned on.4. The communication system of claim 2 , wherein the matching network further comprises:a plurality of second cells coupled to the plurality of switches, respectively, wherein each of the plurality of second cells comprises one or more components.5. The communication system of claim 4 , whereinthe controller is configured to adjust the matching network by turning on one or more of the plurality of switches to provide the optimum impedance for the band and the condition, based on one or more of the plurality of first cells coupled respectively to the one or more of the plurality of switches that are turned on and one or more of the plurality of second cells coupled respectively to the one or more of the plurality of switches that are turned on.6. The communication system of claim 2 , wherein the matching network further comprises:a third ...

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Номер записи: 22
01-08-2013 дата публикации

Filter circuit

Номер: US20130194142A1
Автор: Hiroshi Hara, Hitoshi Ebihara
Принадлежит: TAIYO YUDEN CO LTD

A filter circuit includes: a filter element having a first terminal connected to an antenna, a second terminal connected to a receiving circuit, and a third terminal connected to a transmission circuit; a first inductor, a second inductor, and a third inductor connected in series between the first terminal and the third terminal of the filter element; a fourth inductor that has one end connected to a connecting node connecting the first inductor and the second inductor and that has the other end grounded; and a fifth inductor that has one end connected to a connecting node connecting the second inductor and the third inductor and that has the other end grounded.

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Номер записи: 23
15-08-2013 дата публикации

IMPEDANCE MATCHING CIRCUIT, POWER AMPLIFIER AND MANUFACTURING METHOD FOR VARIABLE CAPACITOR

Номер: US20130207730A1
Автор: Kim Seong-il, LEE Jongmin, Min Byoung-Gue, MUN Jae Kyoung, Nam Eun Soo, Yoon Hyung Sup
Принадлежит: Electronics and Telecommunications Research Institute

Disclosed is an impedance matching circuit capable of wideband matching. The impedance matching circuit includes: a first variable inductor unit of which one end is connected to the first node and an inductance value varies; a second inductor unit connected between the first node and a second node and having a variable inductance value; a first variable capacitor unit of which one end is connected to the first node and a capacitance value varies; and a second variable capacitor unit of which one end is connected to the second node and a capacitance value varies, and the other end of the first variable capacitor unit and the other end of the second variable capacitor unit are connected to a ground voltage terminal to perform the impedance matching between a circuit connected to the other end of the first variable inductor unit and a circuit connected to the second node. 1. An impedance matching circuit , comprising:a first variable inductor unit of which one end is connected to the first node and an inductance value varies;a second inductor unit connected between the first node and a second node and having a variable inductance value;a first variable capacitor unit of which one end is connected to the first node and a capacitance value varies; anda second variable capacitor unit of which one end is connected to the second node and a capacitance value varies,wherein the other end of the first variable capacitor unit and the other end of the second variable capacitor unit are connected to a ground voltage terminal to perform the impedance matching between a circuit connected to the other end of the first variable inductor unit and a circuit connected to the second node.2. The impedance matching circuit of claim 1 , wherein:the first inductor variable inductor unit and the second variable inductor unit include wirebonds, andinductances of the first variable inductor unit and the second variable inductor unit are determined according to the number and the lengths of ...

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Номер записи: 24
15-08-2013 дата публикации

Digitally Tuned Capacitors with Tapered and Reconfigurable Quality Factors

Номер: US20130208396A1
Автор: Peter Bacon, Robert Broughton, Robert W. Greene, Shawn Bawell, Tero Tapio Ranta
Принадлежит: Peregrine Semiconductor Corp

The present disclosure describes tuning capacitors with tapered and reconfigurable quality factors. Digitally tuned capacitors (DTCs) that provide a variable quality factor (Q) while maintaining a constant or near constant capacitance as well as DTCs that provide one or more Q values in a tapered distribution while maintaining a constant or near constant capacitance are described. The present disclosure also describes DTCs that provide one or more capacitances in a tapered distribution and one or more Q values in a tapered distribution.

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Номер записи: 25
15-08-2013 дата публикации

Network for bone conduction transducers

Номер: US20130208935A1
Автор: Bo Hakansson
Принадлежит: Osseofon AB

An electrical network for driving electromagnetic bone conduction vibrator/transducer of variable reluctance type which is applied between the vibrator terminals and the power amplifier terminals so that the vibrator mechanical output is maximized in the mid and high frequencies.

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Номер записи: 26
29-08-2013 дата публикации

Mutually coupled matching network

Номер: US20130222060A1
Автор: Changhan Yun, Chengjie Zuo, Chi Shun Lo, Jonghae Kim, Matthew Michael Nowak, Prasad Srinivasa Siva Gudem, Thomas Andrew Myers, Wesley Nathaniel Allen
Принадлежит: Qualcomm Inc

An impedance matching circuit is disclosed. The impedance matching circuit includes two or more mutually coupled inductors. A total self inductance of the impedance matching circuit is less than a corresponding impedance matching circuit that includes inductors that are not mutually coupled. The two or more mutually coupled inductors may have known current ratios that match current ratios in the corresponding impedance matching circuit.

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Номер записи: 27
05-09-2013 дата публикации

Wireless power transmitter, wireless power receiver, and method of wirelessly receiving power

Номер: US20130229062A1
Автор: Su Ho Bae
Принадлежит: LG Innotek Co Ltd

Disclosed are a wireless power transmitter, a wireless power receiver, and a method of wirelessly receiving power. The wireless power receiver includes a receiving unit receiving the power from the wireless power transmitter using resonance, and a rectifying unit rectifying the power received therein from the receiving unit to supply the power to a load side. The rectifying unit changes an output impedance of the wireless power receiver in order to change an input current of the wireless power transmitter.

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Номер записи: 28
19-09-2013 дата публикации

ADAPTIVE MATCHING NETWORK

Номер: US20130241664A1
Автор: Bachmann Heinz, III William E., McKinzie, Mendolia Greg
Принадлежит: RESEARCH IN MOTION RF, INC.

A system that incorporates teachings of the present disclosure can include, for example, an apparatus having a matching network adapted to reduce a magnitude of a signal reflection at a port of the matching network. The matching network can have one or more controllable variable reactive elements. A controller can be adapted to determine reflection coefficient information from incident and reflected waves sampled at the port of the matching network, and follow at least one cycle of a coarse tune process for generating one or more control signals to tune one or more reactances of the one or more controllable variable reactive elements. Additional embodiments are disclosed. 1. An apparatus , comprising:a matching network that reduces a magnitude of a signal reflection at a port of the matching network responsive to one or more control signals supplied by a circuit,wherein the matching network comprises one or more variable reactive elements, andwherein the circuit determines reflection coefficient information from incident and reflected waves sampled at the port of the matching network, and initiates a tuning process by generating the one or more control signals to adjust one or more reactances of the one or more variable reactive elements.2. The apparatus of claim 1 , wherein a directional coupler samples the incident and reflected waves at the port.3. The apparatus of claim 1 , wherein the circuit determines the reflection coefficient information from samples provided by an analog to digital converter.4. The apparatus of claim 1 , wherein a look-up table is used to perform the tuning process.5. The apparatus of claim 1 , wherein the circuit determines new reflection coefficient information to initiate a subsequent tuning process.6. The apparatus of claim 5 , wherein the tuning process is initially a coarse tuning process claim 5 , and wherein when the new reflection coefficient information has achieved a desired value claim 5 , the tuning process transitions to a ...

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Номер записи: 29
19-09-2013 дата публикации

VARIABLE CAPACITOR, IMPEDANCE MATCHING DEVICE, MOBILE TERMINAL THEREOF AND METHOD FOR MATCHING IMPEDANCE

Номер: US20130241665A1
Автор: Kim Chang Wook
Принадлежит: LG INNOTEK CO., LTD.

Disclosed is an impedance matching device. Variable devices of the impedance matching device installed in a mobile terminal, such as a portable terminal, are configured to have a MEMS structure. The MEMS structure and other components are integrated as one package, so the manufacturing cost is reduced and the manufacturing efficiency is improved. 1. A variable capacitor comprising:a first electrode on a substrate;a second electrode connected to a spring fixed to the substrate to float above the first electrode;a fixed electrode spaced apart from a lateral side of the second electrode on the substrate; anda movable electrode interposed between the second electrode and the fixed electrode and connected to the second electrode to physically make contact with the fixed electrode as voltage is applied to the fixed electrode,wherein a gap between the first and second electrodes is adjusted by varying voltage applied to the first electrode.2. The variable capacitor of claim 1 , wherein a first insulating layer is formed on the first electrode to prevent an electric short between the first and second electrodes claim 1 , and a second insulating layer is formed on the fixed electrode to prevent an electric short between the fixed electrode and the movable electrode.3. The variable capacitor of claim 1 , wherein each of the fixed electrode and the movable electrode includes a pair of electrodes or four electrodes located at both sides of the second electrode.4. A variable capacitor comprising:a first electrode on a substrate;a second electrode spaced apart from the first electrode;a third electrode floating above the first and second electrodes;fourth electrodes connected to the third electrode through a spring structure; andfifth electrodes fixedly aligned in opposition to the fourth electrodes to vary a capacitance value by adjusting a gap between the first and second electrodes and the third electrode as voltage is applied to the fourth electrodes.5. The variable capacitor ...

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Номер записи: 30
19-09-2013 дата публикации

POWER DISTRIBUTING DUPLEXER SYSTEM

Номер: US20130241670A1
Автор: DARABI HOOMAN, Mikhemar Mohyee
Принадлежит: BROADCOM CORPORATION

A power distributing duplexer system is provided. In some aspects, the system includes a duplexer configured to couple an antenna to a transmitter and a receiver. The system also includes a balancing network coupled to the duplexer. The balancing network includes a network impedance. The balancing network is configured to adjust the network impedance to match an antenna impedance of the antenna. The balancing network includes a plurality of balancing network modules coupled to the duplexer. Each of the plurality of balancing network modules is configured to receive a portion of an output voltage from the duplexer. 1. A power distributing duplexer system , the system comprising:a duplexer configured to couple an antenna to a transmitter and a receiver; anda balancing network coupled to the duplexer, the balancing network having a network impedance,wherein the balancing network is configured to adjust the network impedance to match an antenna impedance of the antenna, andwherein the balancing network comprises a plurality of balancing network modules coupled to the duplexer, each of the plurality of balancing network modules being configured to receive a portion of an output voltage from the duplexer.2. The system of claim 1 , wherein the output voltage is at least 7.5 volts.3. The system of claim 1 , wherein each of the plurality of balancing network modules comprises a transformer configured to receive a corresponding portion of the output voltage.4. The system of claim 3 , wherein each of the plurality of transformers is configured to reduce a corresponding portion of the output voltage to generate a step-down voltage.5. The system of claim 3 , wherein the plurality of transformers are serially coupled to one another.6. The system of claim 3 , wherein each of the plurality of transformers is coupled to one or more balancing circuits.7. The system of claim 6 , wherein each of the one or more balancing circuits is configured to receive at least a portion of a ...

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Номер записи: 31
26-09-2013 дата публикации

ELECTRICAL FILTER STRUCTURE

Номер: US20130249650A1
Автор: Bianchi Giovanni
Принадлежит:

An electrical filter structure for forwarding an electrical signal from a first filter port to a second filter port in a frequency-selective manner includes a filter core structure having a working impedance, wherein the working impedance is different from a first characteristic port impedance of a first filter port, and also different from a second characteristic port impedance of a second filter port. The electrical filter structure also includes a first matching arrangement electrically coupled between the first filter port and the filter core structure and a second matching arrangement electrically coupled between the second filter port and the filter core structure. 1. An electrical filter for forwarding an electrical signal from a first port to a second port in a frequency-selective manner , the filter comprising:the first port comprising a first characteristic port impedance;the second port comprising a second characteristic port impedance;a filter core comprising a working impedance, wherein the working impedance is different from the first characteristic port impedance and from the second characteristic port impedance;a first matching circuit electrically coupled between the first port and the filter core, wherein the first matching circuit is configured to perform an impedance matching between the first characteristic port impedance and a characteristic impedance presented by the filter core to the first matching circuit; anda second matching circuit electrically coupled between the second port and the filter core, wherein the second matching circuit is configured to perform an impedance matching between the second characteristic port impedance and a characteristic impedance presented by the filter core to the second matching circuit.2. The filter according to claim 1 , wherein the working impedance of the filter core is smaller than the first characteristic port impedance; andwherein the working impedance of the filter core is smaller than the second ...

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Номер записи: 32
26-09-2013 дата публикации

Variable capacitor circuit

Номер: US20130249655A1
Автор: Jae Hyouck Choi
Принадлежит: Samsung Electro Mechanics Co Ltd

Disclosed herein is a variable capacitor circuit. The variable capacitor circuit which is composed of a plurality of capacitors and a switch transistor connected to each capacitor, and adjusts a capacitance value (C) in accordance with ON/OFF of the switch transistor, includes a unit cell in which at least one switching unit and at least one capacitor are alternately connected in series to each other, and a plurality of capacitor units to which at least one of the unit cells is connected in parallel, and thereby may adjust a difference in quality factors in accordance with a signal direction.

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Номер записи: 33
26-09-2013 дата публикации

FREQUENCY STABILIZATION CIRCUIT, ANTENNA DEVICE, AND COMMUNICATION TERMINAL APPARATUS

Номер: US20130249767A1
Автор: ISHIZUKA Kenichi, KATO Noboru
Принадлежит: MURATA MANUFACTURING CO., LTD.

A frequency stabilization circuit includes a primary side circuit connected to a feeder circuit, and a secondary side circuit electromagnetically coupled to the primary side circuit. The primary side circuit is a series circuit including a first coiled conductor and a second coiled conductor, and the secondary side circuit is a series circuit including a third coiled conductor and a fourth coiled conductor. An antenna element is connected through a high pass filter to a first antenna connection portion set as a connection point of the first coiled conductor and the second coiled conductor. Additionally, the antenna element is connected through a low pass filter to a second antenna connection portion set as a connection point between the second coiled conductor and the fourth coiled conductor. 1. A frequency stabilization circuit comprising: a first reactance element connected to a feeder circuit; and', 'a second reactance element connected in series to the first reactance element;, 'a primary side circuit including a third reactance element electromagnetically coupled to the first reactance element; and', 'a fourth reactance element connected in series between the second reactance element and the third reactance element and electromagnetically coupled to the second reactance element;, 'a secondary side circuit includinga first antenna connection portion connected to a connection point of the first reactance element and the second reactance element, or to a connection point of the third reactance element and the fourth reactance element; anda second antenna connection portion connected to a connection point of the second reactance element and the fourth reactance element.2. The frequency stabilization circuit according to claim 1 , wherein the first antenna connection portion and the second antenna connection portion are terminals that are directly or indirectly connected to a shared antenna.3. The frequency stabilization circuit according to claim 1 , wherein the ...

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Номер записи: 34
03-10-2013 дата публикации

BALANCED IMPEDANCE METHOD FOR DIFFERENTIAL SIGNALING

Номер: US20130257488A1
Автор: KAPUSTA Ronald, SAYUK Mark
Принадлежит: ANALOG DEVICES, INC.

A system and method for implementing a differential signaling driver with a common-mode voltage not equal to one half the power supply voltage using voltage-mode techniques. Embodiments of the present invention maintain balanced impedance at the signal output. In an embodiment, a driver may have multiple operating modes for each potential supply voltage or common-mode voltage. In an embodiment, each potential mode may involve configuring the driver by activating or deactivating switches or resistors in the driver and each potential mode may have different resistor values. 1. A system comprising:a differential signaling driver having a plurality of variable resistors and a supply voltage, wherein the driver may be configured to develop a plurality of potential common-mode voltages such that at least one common-mode voltage deviates from one-half the supply voltage; anda controller to select one of the potential common-mode voltages and to set the variable resistors in accordance with the selected common-mode voltage.2. The system of wherein the controller activates at least a subset of the resistors in accordance with the selected common-mode voltage.3. The system of further comprising:a set of registers to store a plurality of resistor values;wherein each potential common-mode voltage corresponds to at least one of the plurality of resistor values and the controller sets the variable resistors in accordance with the value from the register corresponding to the selected common-mode voltage.4. The system of wherein the controller sets the variable resistors such that the driver has output terminals with balanced impedance.5. A system comprising:an analog source;an analog signal processor to convert an analog signal from the analog source into a digital signal and to transmit the digital signal using a voltage-mode differential signaling driver; anda digital signal processor to process the digital signal received from the voltage-mode differential signaling driver; ...

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Номер записи: 35
17-10-2013 дата публикации

Device Comprising a Controlled Matching Stage

Номер: US20130271234A1
Автор: Van Bezooijen Adrianus
Принадлежит:

A device includes a matching stage coupled between a first signal terminal and a second signal terminal. A signal path extends between the first signal terminal and the second terminal. An adjustable impedance element is connected to the signal path. A detection circuit is coupled to the signal path and configured to derive matching information. A control circuit is coupled between the detection circuit and the adjustable impedance element. The control circuit is configured to control the adjustable impedance element. 1. A device comprising a matching stage coupled between a first signal terminal and a second signal terminal , the matching stage comprising:a signal path between the first signal terminal and the second terminal;an adjustable impedance element connected to the signal path;a detection circuit coupled to the signal path and configured to derive matching information; anda control circuit coupled between the detection circuit and the adjustable impedance element, the control circuit configured to control the adjustable impedance element.2. The device according to claim 1 , wherein the adjustable impedance element comprises an adjustable capacitor and/or inductor.3. The device according to claim 1 , wherein the adjustable impedance element is an element of an impedance matching network.4. The device according to claim 1 , wherein the detecting circuit comprises circuit elements for measuring the impedance matching within the signal path.5. The device according to claim 1 , further comprising a storage medium with an executable program stored thereon claim 1 , wherein the program comprises an algorithm to adjust the impedance of the adjustable impedance element.6. The device according to claim 5 , wherein the algorithm adjusts the impedance element in small steps claim 5 , each small step being represented by one least significant bit.7. The device according to claim 1 , wherein the first terminal is connected to a power amplifier claim 1 , a switching ...

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Номер записи: 36
31-10-2013 дата публикации

VARIABLE CAPACITOR MODULE

Номер: US20130285761A1
Автор: Park Sang Wook
Принадлежит: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Disclosed herein is a variable capacitor module, including: a capacitor circuit part including a plurality of capacitor units connected in parallel with each other; and a switching circuit part including a plurality of switch units connected between the plurality of capacitor units, and varying a capacitance of the capacitor circuit part by selecting at least one capacitor unit according to operations of the switch units, and thus, an asymmetric phenomenon where the RF terminal has directivity by gate resistance of the switch can be removed. 1. A variable capacitor module , comprising:a capacitor circuit part including a plurality of capacitor units connected in parallel with each other; anda switching circuit part including a plurality of switch units connected between the plurality of capacitor units, and varying a capacitance of the capacitor circuit part by selecting at least one capacitor unit according to operations of the switch units.2. The variable capacitor module according to claim 1 , wherein the switch unit is connected between two electrodes included in two capacitor units selected from the plurality of capacitor units.3. The variable capacitor module according to claim 1 , wherein the switch unit includes:a first switch unit connected between two first electrodes included in two capacitor units selected from the plurality of capacitor units; anda second switch unit connected between two second electrodes included in two capacitor units selected from the plurality of capacitor units.4. The variable capacitor module according to claim 3 , wherein the first electrode is a positive (+) electrode included in the capacitor unit claim 3 , and the second electrode is a negative (−) electrode included in the capacitor unit.5. The variable capacitor module according to claim 1 , wherein the capacitor unit is composed of at least one capacitor.6. The variable capacitor module according to claim 5 , wherein claim 5 , when the capacitor unit is composed of two or ...

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Номер записи: 37
31-10-2013 дата публикации

VARIABLE CAPACITOR MODULE

Номер: US20130285762A1
Автор: Park Sang Wook
Принадлежит: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Disclosed herein is a variable capacitor module, including a variable capacitor circuit part including a first capacitor unit, a second capacitor unit connected in parallel with the first capacitor unit, and first and second switch units connected between the first and second capacitor units, and selecting at least one capacitor unit according to operations of the first and second switch units, wherein the variable capacitor circuit part is present in plural, and the plural variable capacitor parts are connected in parallel with each other, and thus, an asymmetric phenomenon where the RF terminal has directivity by gate resistance of the switch can be removed. 1. A variable capacitor module , comprising ,a variable capacitor circuit part including a first capacitor unit, a second capacitor unit connected in parallel with the first capacitor unit, and first and second switch units connected between the first and second capacitor units, and selecting at least one capacitor unit according to operations of the first and second switch units,wherein the variable capacitor circuit part is present in plural, and the plural variable capacitor parts are connected in parallel with each other.2. The variable capacitor module according to claim 1 , wherein the first switch unit is connected between first electrodes included in the first and second capacitor units claim 1 , and the second switch unit is connected between second electrodes included in the first and second capacitor units.3. The variable capacitor module according to claim 2 , wherein the first electrodes are positive (+) electrodes included in the first and second capacitor units; and the second electrodes are negative (−) electrodes included in the first and second capacitor units.4. The variable capacitor module according to claim 1 , wherein the first and second capacitor units each are composed of at least one capacitor.5. The variable capacitor module according to claim 4 , wherein claim 4 , when the ...

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Номер записи: 38
14-11-2013 дата публикации

HIGH-FREQUENCY SIGNAL TRANSMISSION LINE AND ELECTRONIC APPARATUS

Номер: US20130300515A1
Автор: KATO Noboru, Kurita Junichi, Sasaki Jun, SASAKI Satoshi, Tago Shigeru
Принадлежит:

An easily bendable high-frequency signal transmission line includes a dielectric body including a protection layer and dielectric sheets laminated on each other, a surface and an undersurface. A signal line is a linear conductor disposed in the dielectric body. A ground conductor is disposed in the dielectric body, faces the signal line via the dielectric sheet, and continuously extends along the signal line. A ground conductor is disposed in the dielectric body, faces the ground conductor via the signal line sandwiched therebetween, and includes a plurality of openings arranged along the signal line. The surface of the dielectric body on the side of the ground conductor with respect to the signal line is in contact with a battery pack. 1. (canceled)2. An electronic apparatus comprising a first article , a second article and a high-frequency signal transmission line , the high-frequency signal transmission line comprising:an element assembly formed of one or more insulating layers, the element assembly having a first main surface and a second main surface;a linear signal line disposed in the element assembly;a first ground conductor that is disposed in the element assembly, faces the signal line at a first distance, and continuously extends along the signal line, the first ground conductor being located near the first main surface with respect to the signal line; anda second ground conductor that is disposed in the element assembly, faces the signal line at a second distance smaller than the first distance, and has a plurality of openings arranged along the signal line, the second ground conductor being located near the second main surface with respect to the signal line;wherein a main surface of the high-frequency signal transmission line that is located near the first ground conductor with respect to the signal line contacts with the first article; andwherein a main surface of the high-frequency signal transmission line that is located near the second ground ...

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Номер записи: 39
14-11-2013 дата публикации

HIGH-FREQUENCY SIGNAL TRANSMISSION LINE AND ELECTRONIC APPARATUS

Номер: US20130300516A1
Автор: KATO Noboru, Kurita Junichi, Sasaki Jun, SASAKI Satoshi, Tago Shigeru
Принадлежит:

An easily bendable high-frequency signal transmission line includes a dielectric body including a protection layer and dielectric sheets laminated on each other, a surface and an undersurface. A signal line is a linear conductor disposed in the dielectric body. A ground conductor is disposed in the dielectric body, faces the signal line via the dielectric sheet, and continuously extends along the signal line. A ground conductor is disposed in the dielectric body, faces the ground conductor via the signal line sandwiched therebetween, and includes a plurality of openings arranged along the signal line. The surface of the dielectric body on the side of the ground conductor with respect to the signal line is in contact with a battery pack. 1. (canceled)2. A high-frequency signal transmission line comprising:an element assembly formed of one or more insulating layers, the element assembly having a first main surface and a second main surface;a linear signal line disposed in the element assembly;a first ground conductor that is disposed in the element assembly, faces the signal line, and continuously extends along the signal line, the first ground conductor being located near the first main surface with respect to the signal line; anda second ground conductor that is disposed in the element assembly, faces the first ground conductor via at least one of the one or more insulating layers, and has a plurality of openings arranged along the signal line, the second ground conductor being located near the second main surface with respect to the signal line;wherein the element assembly has a connection used for external connection, and a transmission line which a part of the first ground conductor extending along the signal line functions as;wherein the first main surface of the element assembly is a contact surface with a metal article; andwherein the first ground conductor is electrically connected to the metal article by connection between the transmission line and the metal ...

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Номер записи: 40
14-11-2013 дата публикации

Method and apparatus for transmitting and receiving high frequency

Номер: US20130303091A1
Автор: Byoung Hak Kim, Cheol-Ho Shin, Jae Young Kim, Jaehwan Kim, Mi Kyung Oh, Sangjae Lee, Sangsung Choi, Seung Sik LEE, Young Ae Jeon
Принадлежит: Electronics and Telecommunications Research Institute ETRI

A high frequency transmitting and receiving apparatus of a wireless communication system low-noise amplifies a signal that is received from a transmitting and receiving antenna through a low noise amplifier in a reception mode, and amplifies a signal be transmitted through a power amplifier in a transmission mode and transmits the signal through the transmitting and receiving antenna, and the high frequency transmitting and receiving apparatus is connected between the transmitting and receiving antenna and the low noise amplifier and turns on a switch in a reception mode and turns off the switch in a transmission mode, thereby separating transmitting and receiving signals.

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Номер записи: 41
05-12-2013 дата публикации

Dynamic Impedance Matching in Wireless Communications

Номер: US20130324066A1
Автор: Rofougaran Ahmadreza, Rofougaran Maryam
Принадлежит: BROADCOM CORPORATION

Aspects of a method and system for LNA adjustment to compensate for dynamic impedance matching are provided. In this regard, an antenna matching network may be configured to maximize received signal strength for a determined frequency and an amplifier gain may be adjusted based on the maximized signal strength such that output levels of the amplifier are between specified limits. The antenna matching network may be programmatically controlled via one or more switching elements. The amplifier gain may be programmatically controlled via one or more bias points. The antenna matching network may be configured for a plurality of frequencies in a frequency band, such as an FM broadcast band, and a configuration for each frequency may be stored. Accordingly, when the receiver is tuned to a frequency, a corresponding configuration may be retrieved from memory. 164-. (canceled)65. A system for signal processing , said system comprising:a receiver having one or more circuits, wherein for a selected frequency of a plurality of frequencies, said one or more circuits are configured to:adjust a configuration of an antenna matching network within said receiver to maximize a received signal strength at said selected frequency;store said configuration of said antenna matching network associated with said selected frequency in a memory of said system.66. The system of claim 65 , wherein said one or more circuits are further configured to adjust a gain of an amplifier within said receiver based on said selected frequency.67. The system of claim 66 , wherein said gain of said amplifier is held constant during said adjusting said configuration of said antenna matching network.68. The system of claim 65 , wherein said one or more circuits are configured to retrieve said configuration of said antenna matching network when tuning to said selected frequency.69. The system of claim 65 , wherein said antenna matching network comprises one or more variable capacitances.70. The system of claim ...

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Номер записи: 42
19-12-2013 дата публикации

Signal Transmitting Device and Phase Modulated Method for Transmitting via a Signal Transmitting Device

Номер: US20130336424A1
Автор: FELDTKELLER Martin
Принадлежит: INFINEON TECHNOLOGIES AG

A signal transmitting device and a method for transmitting via a signal transmitting device is disclosed. In one embodiment the transmitting device comprises a first resonant circuit with a resonant circuit inductance and a resonant circuit capacitance and a second resonant circuit with a resonant circuit inductance and a resonant circuit capacitance, a coupling element which couples the first resonant circuit to the second resonant circuit, a first excitation circuit, coupled to the first resonant circuit, and at least one further excitation circuit coupled to the second resonant circuit. 1. A circuit comprising:a first resonant circuit having a resonant circuit inductance and a resonant circuit capacitance, and a second resonant circuit having at least one a resonant circuit capacitance;a coupling element coupling the first resonant circuit to the second resonant circuit;a first excitation circuit coupled to the first resonant circuit, and at least one further excitation circuit being coupled to the second resonant circuit;a second excitation circuit coupled to the first and second resonant circuit;at least one first inductive component being coupled inductively to the resonant circuit capacitance of the first resonant circuit;at least one second inductive component being coupled inductively to the resonant circuit capacitance of the second resonant circuit,wherein the first excitation circuit and the second excitation circuit are configured to excite the first resonant circuit and the second resonant circuit into phase-shifted oscillations with a phase shift not equal to zero.2. The circuit of wherein the first excitation circuit and the further excitation circuit are configured to excite the first and second resonant circuit into antiphase oscillations.3. The circuit of claim 1 , further comprising:a first transformer having a primary winding and a secondary winding, with the primary winding of said first transformer forming the resonant circuit inductance of ...

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Номер записи: 43
26-12-2013 дата публикации

Transmission-Line Resistance Compression Networks And Related Techniques

Номер: US20130343107A1
Автор: Perreault David J.
Принадлежит: ETA DEVICES, INC.

A resistance compression network uses transmission line sections having asymmetric lengths to compress the resistance range of multiple loads. In some embodiments, the characteristic impedance of the transmission line sections is related to the geometric mean of the load resistance range. The resistance compression network may be used within, for example, an energy recovery system or in any other application where a reduction in the resistance range of multiple loads is desired. 1. A resistance compression network to shape an input impedance at a port for transferring energy to multiple loads at a first frequency , the resistance compression network comprising:a first transmission line segment having a first electrical length at the first frequency, the first transmission line segment having an output for coupling to a first load;a second transmission line segment having a second electrical length at the first frequency, the second electrical length being different from the first electrical length, the second transmission line segment having an output for coupling to a second load; anda compression port coupled to inputs of both the first and the second transmission line segments;wherein, over a set of operating conditions of interest, an equivalent resistance looking into the compression port at the first frequency varies over a first resistance range as equivalent resistances of the first and second loads vary over a second resistance range, wherein a range ratio associated with the first resistance range is less than a range ratio associated with the second resistance range, wherein the range ratio of a subject range is a ratio of a largest resistance value in the subject range to a smallest resistance value in the subject range.2. The resistance compression network of claim 1 , wherein:the first and second loads have input impedances that vary in substantially the same manner under similar conditions.3. The resistance compression network of claim 1 , wherein:the ...

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Номер записи: 44
02-01-2014 дата публикации

TUNABLE CAPACITOR

Номер: US20140002208A1
Автор: CHO Youngho, Im Donggu, KIM Bonkee, KIM Bumkyum
Принадлежит: HiDeep Inc

Disclosed is a tunable capacitor. The tunable capacitor according to a first embodiment of the present invention includes: a first capacitor; and a switching transistor which switches on/off the connection of the first capacitor between the first terminal and the second terminal, wherein an on/off operation of the switching transistor is performed by a high signal H and a low signal L. The tunable capacitor according to a second embodiment of the present invention includes: a first capacitor; and a switching transistor which switches on/off the connection of the first capacitor between the first terminal and the second terminal, wherein an on/off operation of the switching transistor is performed by a high signal H and a low signal L, and wherein the tunable capacitor is integrated on one semiconductor die or on one module. 1. A tunable capacitor comprising:a first capacitor; and 'wherein an on/off operation of the switching transistor is performed by a high signal H and a low signal L.', 'a switching transistor which switches on/off the connection of the first capacitor between the first terminal and the second terminal,'}2. The tunable capacitor of claim 1 , wherein when the switching transistor is in an on-state claim 1 , a high signal H is applied to a gate terminal G claim 1 , and a low signal L is applied to a body terminal B claim 1 , a drain terminal D and a source terminal S claim 1 , and wherein when the switching transistor is in an off-state claim 1 , the low signal L is applied to the gate terminal G and the body terminal B claim 1 , and the high signal H is applied to the drain terminal D and the source terminal S.3. The tunable capacitor of claim 1 , wherein the switching transistor is a stacked transistor formed by connecting in series a plurality of transistors.4. The tunable capacitor of claim 1 , wherein a gate terminal G and a body terminal B of the switching transistor are connected in series to a resistance respectively.5. The tunable capacitor ...

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Номер записи: 45
16-01-2014 дата публикации

OVERCOMING MULTIPLE REFLECTIONS IN PACKAGES AND CONNECTORS AT HIGH SPEED BROADBAND SIGNAL ROUTING

Номер: US20140016686A1
Автор: BEN ARTSI Liav
Принадлежит:

Discussed herein is a semiconductor package and a method of overcoming multiple reflections while transmitting high speed broadband signals through the semiconductor package. The semiconductor package includes at least one trace having a first terminal that is configured to receive a broadband signal and a second terminal configured to output the broadband signal. The semiconductor package includes a stub which is positioned along a longitudinal length of the trace and is configured to reduce broadband reflections in the trace by causing multi-frequency reflections to destructively interfere with at least some broadband reflections in the trace that occur due to impedance discontinuities. The stub parameters such as stub length, stub impedance and the location of the stub along the trace can be determined to minimize signal degradation. 1. A circuit package comprising:at least one trace having a first terminal configured to receive a broadband signal and a second terminal configured to output the broadband signal; anda stub projecting from the trace and positioned at a predetermined location along a longitudinal length of the trace, the stub being configured to reduce reflections in the trace by causing multi-frequency reflections that destructively interfere with at least some broadband reflections to be added to signals transmitted along the trace and improve broad-band insertion loss/return loss.2. The circuit package of claim 1 , wherein the stub is configured to cause the multi-frequency reflections to destructively interfere with at least some claim 1 , but not all claim 1 , broadband reflections in the trace.3. The circuit package of claim 1 , wherein the trace has a trace impedance and wherein the stub is of a predetermined length and has a stub impedance claim 1 , the stub impedance being different than the trace impedance.4. The circuit package of claim 1 , wherein the trace is configured to carry broadband signals having a plurality of frequency ...

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Номер записи: 46
30-01-2014 дата публикации

TUNER TOPOLOGY FOR WIDE BANDWIDTH

Номер: US20140028521A1
Автор: Bauder Ruediger, Iversen Christian Rye
Принадлежит: RF MICRO DEVICES, INC.

Adjustable impedance tuning circuitry includes a first impedance matching terminal, a second impedance matching terminal, and a plurality of passive components adapted to match the impedance of the first impedance matching terminal and the second impedance matching terminal. The plurality of passive components includes one or more tunable components adapted to adjust the impedance of the adjustable impedance tuning circuitry to maintain an impedance match between the first impedance matching terminal and the second impedance matching terminal over a variety of operating conditions. Each of the one or more tunable components includes one or more switches adapted to selectively alter the impedance of the tunable component. The one or more switches are integrated onto a single semiconductor die in order to facilitate the performance of the adjustable impedance tuning circuitry over a wide bandwidth. 1. Adjustable impedance tuning circuitry comprising:a first impedance matching terminal and a second impedance matching terminal; and the plurality of passive components includes one or more tunable components;', 'the one or more tunable components include one or more tuning switches adapted to alter an impedance of the one or more tunable components; and', 'each of the one or more tuning switches are integrated onto a single semiconductor die., 'a plurality of passive components adapted to match an impedance at the first impedance matching terminal to an impedance at the second impedance matching terminal, wherein2. The adjustable impedance tuning circuitry of further comprising control circuitry coupled to the one or more tunable components and adapted to adjust the impedance of the one or more tunable components in order to match the impedance at the first impedance matching terminal to the impedance at the second impedance matching terminal.3. The adjustable impedance tuning circuitry of wherein the control circuitry is integrated onto the single semiconductor die with ...

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Номер записи: 47
13-02-2014 дата публикации

EFFICIENT LOOP ANTENNA SYSTEM AND METHOD

Номер: US20140043109A1
Автор: Lam Alan
Принадлежит: TANDY RADIO SHACK LIMITED

An antenna including a conductive loop having a first top surface portion, the conductive loop having a first edge portion interrupted by a gap defining a feed point, a conductive strip having a second top surface, the conductive loop lying in a plane defined by the second top surface, the conductive strip having a second edge portion extending between first and second opposing distal ends, the second edge portion being spaced from the first edge portion, and the second edge portion extending along the first edge portion at a substantially constant distance from the first edge portion, and wherein the conductive strip is electrically isolated from the conductive loop and is structurally configured and positioned relative to the conductive loop to adjust an input impedance of the conductive loop. 1. An antenna , comprising ,a conductive loop having a first top surface and a first bottom surface, the first top surface and the first bottom surface being separated by a first thickness, the conductive loop having a first edge portion interrupted by a gap defining a feed point, and the conductive loop being responsive to electromagnetic signals in a frequency band;a conductive strip having a second top surface and a second bottom surface, the second top surface and the second bottom surface being separated by a second thickness substantially similar to the first thickness, the conductive loop lying in a plane defined by the second top surface, the conductive strip having a first distal end and an opposing second distal end and a second edge portion extending between the first and second distal ends, the second edge portion being spaced from the first edge portion, and the second edge portion extending along the first edge portion at a substantially constant distance from the first edge portion; andwherein the conductive strip is electrically isolated from the conductive loop and is structurally configured and positioned relative to the conductive loop to adjust an input ...

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Номер записи: 48
06-03-2014 дата публикации

IMPEDANCE-MATCHING SWITCHING CIRCUIT, ANTENNA DEVICE, HIGH-FREQUENCY POWER AMPLIFYING DEVICE, AND COMMUNICATION TERMINAL APPARATUS

Номер: US20140062817A1
Автор: ISHIZUKA Kenichi, KATO Noboru, SHIROKI Koji, UEKI Noriyuki
Принадлежит: MURATA MANUFACTURING CO., LTD.

An antenna device includes an impedance-matching switching circuit connected to a feeding circuit, and a radiating element. The impedance-matching switching circuit matches the impedance of the radiating element as a second high frequency circuit element and the impedance of the feeding circuit as a first high frequency circuit element. The impedance-matching switching circuit includes a transformer matching circuit and a series active circuit. The transformer matching circuit matches the real parts of the impedance and matches the imaginary parts of the impedance in the series active circuit. Thus, impedance matching is performed over a wide frequency band at a point at which high frequency circuits or elements having different impedances are connected to each other. 1. (canceled)2. An impedance-matching switching circuit connected between a first high frequency circuit element and a second high frequency circuit element , the impedance-matching switching circuit comprising: a first circuit including a first inductance element; and', 'a second circuit including a second inductance element transformer-coupled to the first inductance element; and', 'a series active circuit connected to the transformer matching circuit in series and configured to select a desired reactance value among a plurality of reactance values; wherein, 'a transformer matching circuit includinga frequency characteristic of an impedance conversion ratio of the transformer matching circuit by transformer coupling between the first inductance element and the second inductance element is a characteristic having a tendency opposite to an impedance frequency characteristic of the second high frequency circuit element.3. The impedance-matching switching circuit according to claim 2 , wherein the second circuit includes a capacitance element connected in parallel to the second inductance element.4. The impedance-matching switching circuit according to claim 2 , wherein:the first circuit includes a first ...

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Номер записи: 49
06-03-2014 дата публикации

Chip card communication arrangement and chip card communication circuit

Номер: US20140065981A1
Автор: Matthias Emsenhuber, Richard Sbuell, Walter Kargl
Принадлежит: INFINEON TECHNOLOGIES AG

According to an embodiment, a chip card communication arrangement is provided comprising a matching network and a chip card communication circuit comprising at least one matching network terminal, a receiver coupled to the matching network via the at least one matching network terminal and an active transmitter coupled to the matching network via the at least one matching network terminal.

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Номер записи: 50
06-03-2014 дата публикации

Matching network for transmission circuitry

Номер: US20140065991A1
Автор: Christopher Harris, Raymond S. Pengelly
Принадлежит: Cree Inc

The present disclosure relates to transmission circuitry of a wireless communication device. The transmission circuitry includes power amplifier circuitry, an output matching network, and impedance control circuitry. The power amplifier circuitry amplifies a radio frequency (RF) input signal to provide an amplified RF output signal, which is passed through the output matching network and transmitted via one or more antennas. As the center frequency of the RF input signal and conditions of operating parameters change, the impedance control circuitry adjusts the values of one or more variable impedance elements of the output matching network in a desired fashion. The values of the variable impedance elements are adjusted such that the output matching network concurrently and dynamically presents the desired load impedances at the center frequency and at one or more harmonics of the RF input signal to achieve a given performance specification.

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Номер записи: 51
20-03-2014 дата публикации

Substrate integrated waveguide coupler

Номер: US20140077893A1
Автор: Chang Soo Kwak, Hong Yeol Lee, In Bok Yom, Jang Sup CHOI, Man Seok Uhm, So Hyeun YUN
Принадлежит: Electronics and Telecommunications Research Institute ETRI

Disclosed is a substrate integrated waveguide coupler. The substrate integrated waveguide coupler according to the present invention includes: a substrate; an upper conducting plate applied to an upper portion of the substrate; a lower conducting plate applied to a lower portion of the substrate; two peripheral via holes disposed parallel to each other on both sides of the substrate, respectively, and being of a pipeline type electrically connecting the upper conducting plate and the lower conducting plate to each other; and an inner via hole disposed between the two peripheral via holes, and having a center thereof separated by a preset distance and forming a short slot functioning to couple input signals.

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Номер записи: 52
03-04-2014 дата публикации

IMPEDANCE MATCHING CIRCUIT AND ANTENNA SYSTEM

Номер: US20140091980A1
Автор: IIZUKA Fumitaka, Nakamura Kentaro
Принадлежит:

An impedance matching circuit is connected to a first circuit block (impedance matching target circuit) that requires impedance matching and that has one terminal connected to a signal line and the other terminal connected to a ground, the impedance matching circuit having a second circuit block that has a first circuit and a second circuit connected in parallel. In the first circuit, a first capacitor having a variable capacitance and a first inductor having a first inductance are connected in series, and in the second circuit, a second inductor having a second inductance and a switch are connected are connected in series. The impedance matching circuit has one terminal connected to the signal line of the first circuit block and the other terminal connected to the ground of the first circuit block. 1. An impedance matching circuit for connection to a first circuit block that requires impedance matching , the first circuit block configured to have one terminal connected to a signal line and another terminal connected to a ground , the impedance matching circuit comprising:a second circuit block having a first circuit and a second circuit connected in parallel, the first circuit including a first capacitor having a variable capacitance and a first inductor having a first inductance connected in series, the second circuit including a second inductor having a second inductance and a switch connected in series,wherein one terminal of the impedance matching circuit is to be connected to the signal line of the first circuit block, and another terminal of the impedance matching circuit is to be connected to the ground of the first circuit block.2. The impedance matching circuit according to claim 1 , further comprising a control part that determines whether an input impedance of the first circuit block is inductive or capacitive and that turns the switch off when the input impedance is inductive and turns the switch on when the input impedance is capacitive claim 1 , the ...

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Номер записи: 53
10-04-2014 дата публикации

IMPEDANCE MATCHING DEVICE, LINEAR MOTION MODULE, AND RADIO FREQUENCY POWER SUPPLY DEVICE

Номер: US20140097912A1
Автор: Lee Wonoh
Принадлежит: PLASMART INC.

An impedance matching device includes a first variable capacitor connected to an RF power source and including a first shaft moving linearly, a first linear motion unit axially coupled to the first shaft of the first variable capacitor to provide linear motion, a first insulating joint connecting the first shaft to a first driving shaft of the first linear motion unit, and a first displacement sensor adapted to measure a movement distance of the first driving shaft of the first linear motion unit. 1. An impedance matching device comprising:a first variable capacitor connected to an RF power source and including a first shaft moving linearly;a first linear motion unit axially coupled to the first shaft of the first variable capacitor to provide linear motion;a first insulating joint connecting the first shaft to a first driving shaft of the first linear motion unit; anda first displacement sensor adapted to measure a movement distance of the first driving shaft of the first linear motion unit.2. The impedance matching device of claim 1 , further comprising:a second variable capacitor including a second shaft moving linearly;a second linear motion unit axially coupled to the second shaft of the second variable capacitor to provide linear motion;a second insulating joint connecting the second shaft to a second driving shaft of the second linear motion unit; anda second displacement sensor adapted to measure a movement distance of the second driving shaft of the second linear motion unit.3. The impedance matching device of claim 1 , wherein the first linear motion unit comprises:a coil bobbin coupled to the other end of the first driving shaft; anda first permanent magnet unit disposed to encircle the first driving shaft and provide linear motion to the coil bobbin.4. The impedance matching device of claim 3 , further comprising:a front-end flange coupled to a first electrode of the first variable capacitor;a back-end flange coupled to the first linear motion unit; ...

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Номер записи: 54
07-01-2021 дата публикации

ROOM-TEMPERATURE SEMICONDUCTOR MASER AND APPLICATIONS THEREOF

Номер: US20210003688A1
Автор: BU Shirong, CHEN Liu, FU Yang, NING Junsong, WANG Chenle, Wang Ruyi, WANG Zhanping, Zeng Cheng
Принадлежит:

A room-temperature semiconductor maser, including a first matching network, a second matching network, a heterojunction-containing transistor, and a resonant network. The output end of the first matching network is connected to the drain of the heterojunction-containing transistor. The input end of the second matching network is connected to the source of the heterojunction-containing transistor. The gate of the heterojunction-containing transistor is connected to the resonant network. The pumped microwaves are fed into the input end of the first matching network. 2. The semiconductor maser of claim 1 , wherein the heterojunction-containing transistor is a heterojunction bipolar transistor or a field effect transistor (FET).3. The semiconductor maser of claim 2 , wherein the FET is a metal-oxide semiconductor field effect transistor (MOSFET) or a high electron mobility transistor (HEMT).4. A passive frequency mixer claim 2 , comprising an LO filter and a first network matching the LO filter claim 2 , a band-pass filter and a second network matching the band-pass filter claim 2 , a heterojunction-containing transistor claim 2 , and a low-pass filter and a third network matching the low-pass filter claim 2 , wherein the LO filter and an output end of the first network are connected to a drain of the heterojunction-containing transistor; the low-pass filter and an input end of the third network are connected to a source of the heterojunction-containing transistor; and a gate of the heterojunction-containing transistor is connected to the band-pass filter and the second network.5. The passive frequency mixer of claim 4 , wherein the heterojunction-containing transistor is a heterojunction bipolar transistor or a field effect transistor.6. A method of manufacturing a radio-frequency microwave oscillator claim 1 , comprising applying the semiconductor maser of claim 1 , and controlling a resonant frequency of a resonant network in an oscillator according to an input power ...

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Номер записи: 55
05-01-2017 дата публикации

Impedance matching device, linear motion module, and radio frequency power supply device

Номер: US20170005635A1
Автор: Wonoh Lee
Принадлежит: Mks Korea Ltd

An impedance matching device includes a first variable capacitor connected to an RF power source and including a first shaft moving linearly, a first linear motion unit axially coupled to the first shaft of the first variable capacitor to provide linear motion, a first insulating joint connecting the first shaft to a first driving shaft of the first linear motion unit, and a first displacement sensor adapted to measure a movement distance of the first driving shaft of the first linear motion unit.

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Номер записи: 56
05-01-2017 дата публикации

WAVE SEPARATOR

Номер: US20170005637A1
Автор: NAKAMURA Soichi
Принадлежит:

A wave separator includes an n number (n being a natural number of 3 or larger) of band pass filters having an n number or larger of mutually different pass bands, and a common terminal. For a first of the band pass filters that is one of a band pass filter having a center frequency of a pass band at a lowest side and a band pass filter having a center frequency of a pass band at a highest side and that has a larger or equal difference in a center frequency of a pass band from an adjacent band pass filter as compared with the other band pass filter satisfies a predetermined configuration for a second band pass filter having a pass band adjacent to the first band pass filter. 1. A wave separator comprising:an n number of band pass filters including an n number or larger of mutually different pass bands where n is a natural number of 3 or larger; anda common terminal commonly provided for the n number of band pass filters; whereinamong the n number of band pass filters, for a first band pass filter that is one of a band pass filter having a center frequency of a pass band at a lowest side and a band pass filter having a center frequency of a pass band at a highest side and that has a larger or equal difference in a center frequency of a pass band from an adjacent band pass filter as compared with the other band pass filter, when f(1) is a center frequency of a pass band and B(1) is a susceptance value with the center frequency viewed from the common terminal; andamong the n number of band pass filters, for a second band pass filter having a pass band adjacent to the first band pass filter, when f(2) is a center frequency of a pass band and B(2) is a susceptance value with the center frequency viewed from the common terminal;the first band pass filter satisfies one of a configuration (i) and a configuration (ii) for the second band pass filter as follows:(i) B(2)×{2×f(2)−f(1)}/f(1) Подробнее

Номер записи: 57
07-01-2016 дата публикации

Module

Номер: US20160006408A1
Автор: Ryuji Murata
Принадлежит: TAIYO YUDEN CO LTD

A module includes: a first duplexer including a common terminal coupled to a first terminal of a diplexer, the diplexer including an antenna terminal coupled to an antenna, the first terminal, and a second terminal; and a second duplexer including a common terminal coupled to the second terminal of the diplexer and having a passband different from a passband of the first duplexer, wherein a frequency at which a reactance component of an impedance is approximately zero and the impedance is less than a reference impedance is not located in a passband of the first duplexer, the impedance being an impedance when the second duplexer is viewed from a node at which the antenna terminal is divided into the first terminal and the second terminal in the diplexer.

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Номер записи: 58
03-01-2019 дата публикации

GUARD BOND WIRES IN AN INTEGRATED CIRCUIT PACKAGE

Номер: US20190006286A1
Автор: Cuoco Vittorio, Van Der Zanden Josephus, VOLKHINE Youri, Walesieniuk Anna, ZHU Yi
Принадлежит:

An integrated circuit package is provided. The integrated circuit package comprises a first and second guard bond wire. The first guard bond wire has a first and second end coupled to ground. The second guard bond wire has a first and second end coupled to ground. The integrated circuit package further comprises a die. The die is mounted between the first and second guard bond wires such that the first and second guard bond wires distort a magnetic field between at least an input terminal and an output terminal of the die. 1. An integrated circuit package , comprising:a first guard bond wire having a first and second end coupled to ground;a second guard bond wire having a first and second end coupled to ground;a die mounted between the first and second guard bond wires such that the first and second guard bond wires distort a magnetic field between at least an input terminal and an output terminal of the die, wherein the die has a surface area with a first side and a second side that is opposite to the first side and at least a portion of the first guard bond wire is aligned with the first side of the die and at least a portion of the second guard bond wire is aligned with the second side of the die; anda flange on which the die is mounted;wherein the at least a portion of the first guard bond wire is aligned with the first side such that the at least a portion of the first bond wire runs parallel to the first side of the die, and wherein the at least a portion of the second guard bond wire is aligned with the second side such that the at least a portion of the second guard bond wire runs parallel to the second side of the die,wherein the first and/or second end of the first guard bond wire is/are coupled to ground through a flange mounted first and/or second capacitor, respectively, and the first and/or second end of the second guard bond wire is/are coupled to ground through a flange mounted third and/or fourth capacitor, respectively.215-. (canceled)16. The ...

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Номер записи: 59
04-01-2018 дата публикации

IMPEDANCE MATCHING CIRCUIT FOR RADIO-FREQUENCY AMPLIFIER

Номер: US20180006626A1
Автор: LYALIN Aleksey A., MUHLMEYER Nicholas Quinn, Reisner Russ Alan, Sun Weimin
Принадлежит:

Impedance matching circuit for radio-frequency amplifier. In some embodiments, an impedance matching circuit can include a primary metal trace having a first end configured to be capable of being coupled to a voltage source for the power amplifier, and a second end configured to be capable of being coupled to an output of the power amplifier. The impedance matching circuit can further include a secondary metal trace having first end coupled to the second end of the primary metal trace, and a second end configured to be capable of being coupled to an output node. The impedance matching circuit can further include a capacitance implemented between the first and second ends of the secondary metal trace, and be configured to trap a harmonic associated with an amplified signal at the output of the power amplifier. 1. An impedance matching circuit for a power amplifier , comprising:a primary metal trace having a first end configured to be capable of being coupled to a voltage source for the power amplifier, and a second end configured to be capable of being coupled to an output of the power amplifier;a secondary metal trace having a first end coupled to the second end of the primary metal trace, and a second end configured to be capable of being coupled to an output node; anda capacitance implemented between the first and second ends of the secondary metal trace, the capacitance configured to trap a harmonic associated with an amplified signal at the output of the power amplifier.2. The impedance matching circuit of further comprising a harmonic trap circuit implemented between the output of the power amplifier and a ground.3. The impedance matching circuit of wherein the harmonic trap circuit includes a series combination of a capacitance and an inductance.4. The impedance matching circuit of wherein the capacitance and the inductance of the harmonic trap are configured to trap a second harmonic associated with the amplified signal.5. The impedance matching circuit of ...

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Номер записи: 60
04-01-2018 дата публикации

Method, System, and Apparatus for Resonator Circuits and Modulating Resonators

Номер: US20180006628A1
Автор: Burgener Mark L., Cable James S.
Принадлежит:

Embodiments of resonator circuits and modulating resonators and are described generally herein. One or more acoustic wave resonators may be coupled in series or parallel to generate tunable filters. One or more acoustic wave resonances may be modulated by one or more capacitors or tunable capacitors. One or more acoustic wave modules may also be switchable in a filter. Other embodiments may be described and claimed. 1. A filter module for providing a pass-band and a tunable rejection band , comprising:an acoustic wave resonator (AWR), the AWR having a resonant frequency (RFA) and an anti-resonant frequency (AFA); anda capacitor module coupled in parallel to the AWR, the capacitor module configured to modify the transduction of the electrical signal by the AWR.2. A filter module for providing a tunable pass-band and a tunable rejection band , comprising:an acoustic wave resonator (AWR), the AWR having a resonant frequency (RFA) and an anti-resonant frequency (AFA);a first capacitor module coupled in parallel to the AWR, the first capacitor module configured to modify the transduction of the electrical signal by the AWR; anda second capacitor module coupled in series to the AWR and the first capacitor module, the second capacitor module configured to modify the transduction of the electrical signal by the AWR.3. The filter module of claim 1 , wherein the capacitor modifies at least one of the AFA and RFA.4. The filter module of claim 2 , wherein the first capacitor module or the second capacitor module or a combination thereof modifies at least one of the RFA and AFA.5. The filter module of claim 1 , wherein the capacitor module is a variable capacitor.6. The filter module of claim 2 , wherein at least one of the first capacitor module and the second capacitor module are variable capacitors.7. A filter module for providing a switchable pass-band and a tunable rejection band claim 2 , the filter module comprising:an acoustic wave resonator (AWR), the AWR having a ...

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Номер записи: 61
03-01-2019 дата публикации

Generation And Synchronization Of Pulse-Width Modulated (PWM) Waveforms For Radio-Frequency Applications

Номер: US20190006995A1
Автор: Alexander Sergeev Jurkov, David J. Perreault
Принадлежит: Massachusetts Institute of Technology

Described are concepts, systems, circuits and techniques directed toward methods and apparatus for generating one or more pulse width modulated (PWM) waveforms with the ability to dynamically control pulse width and phase with respect to a reference signal.

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Номер записи: 62
03-01-2019 дата публикации

MULTILAYER ELECTRONIC COMPONENT

Номер: US20190007018A1
Автор: Ashida Yuta, HIRABAYASHI Noriyuki, Tomaki Shigemitsu
Принадлежит: TDK Corporation

A multilayer electronic component includes a multilayer stack, and a band elimination filter formed using the multilayer stack. The band elimination filter includes a first input/output end, a second input/output end, a connection path connecting the first and second input/output ends, and a resonator coupled to the connection path. The connection path includes an impedance transformer. The resonator includes a first conductor line constituting a first distributed constant line. The impedance transformer includes a second conductor line constituting a second distributed constant line, and a through hole line section connected in series to the second conductor line. 1. A multilayer electronic component comprising: a multilayer stack; and a band elimination filter formed using the multilayer stack , whereinthe multilayer stack includes a plurality of dielectric layers and a plurality of conductor layers stacked together, a first input/output end;', 'a second input/output end;', 'a connection path connecting the first input/output end and the second input/output end; and', 'a first resonator coupled to the connection path,, 'the band elimination filter includesthe connection path includes an impedance transformer,the first resonator includes a first conductor line constituting a first distributed constant line,the impedance transformer includes a second conductor line constituting a second distributed constant line, and a through hole line section connected in series to the second conductor line,each of the first and second conductor lines is formed of at least one of the plurality of conductor layers, andthe through hole line section includes at least one through hole provided in the multilayer stack.2. The multilayer electronic component according to claim 1 , wherein the band elimination filter further includes a capacitor for coupling the first resonator to the connection path.3. The multilayer electronic component according to claim 2 , whereinthe capacitor has a ...

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Номер записи: 63
03-01-2019 дата публикации

ELASTIC WAVE DEVICE

Номер: US20190007019A1
Автор: KAWASAKI Koichiro
Принадлежит:

An elastic wave device includes an impedance matching element, a switch that switches a connection state between a first switch terminal connected to the impedance matching element and second switch terminals, multiplexers connected to the second switch terminals, a substrate, and at least one inductor on the substrate and has an inductance smaller than an inductance of the impedance matching element. At least one of the second switch terminals and at least one of the multiplexers are connected with the first inductor interposed therebetween. 1. An elastic wave device comprising:an impedance matching element that includes a first end and a second end;a switch that includes a first switch terminal connected to the second end of the impedance matching element and a plurality of second switch terminals, and that switches a state of connection between the first switch terminal and the plurality of second switch terminals;a plurality of multiplexers that are connected to the plurality of second switch terminals respectively;a substrate; andat least one inductor that is provided on the substrate and has an inductance smaller than an inductance of the impedance matching element; whereinat least one of the plurality of second switch terminals and at least one of the plurality of multiplexers are connected with the at least one inductor interposed therebetween.2. The elastic wave device according to claim 1 , wherein the switch includes at least one capacitor that is connected between the first switch terminal and at least one of the plurality of multiplexers.3. An elastic wave device comprising:an impedance matching element that includes a first end and a second end;a switch that includes a first switch terminal connected to the second end of the impedance matching element and a plurality of second switch terminals, and that switches a state of connection between the first switch terminal and the plurality of second switch terminals; anda plurality of multiplexers that are ...

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Номер записи: 64
02-01-2020 дата публикации

High-frequency module and communication device

Номер: US20200007096A1
Автор: Terumichi KITA
Принадлежит: Murata Manufacturing Co Ltd

A high-frequency module ( 10 ) includes a filter unit ( 20 ) including a plurality of filters, a switch unit ( 30 ) that is connected to the filter unit ( 20 ) and that includes a switch configured to switch filters through which a high-frequency signal passes among the plurality of filters, an amplifying unit ( 50 ) configured to amplify the high-frequency signal passing through the filter unit ( 20 ), a matching unit ( 40 ) that is connected between the filter unit ( 20 ) and the amplifying unit ( 50 ) and that is configured to perform impedance matching of the amplifying unit ( 50 ), and a multilayer substrate ( 100 ) provided with the filter unit ( 20 ), the switch unit ( 30 ), the amplifying unit ( 50 ), and the matching unit ( 40 ).

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Номер записи: 65
03-01-2019 дата публикации

Devices and Methods for Improving Voltage Handling and/or Bi-Directionality of Stacks of Elements When Connected Between Terminals

Номер: US20190007042A1
Автор: Bawell Shawn, Brindle Christopher N., Englekirk Robert Mark, Greene Robert W., Ranta Tero Tapio
Принадлежит:

Devices and methods for improving voltage handling and/or bi-directionality of stacks of elements when connected between terminals are described. Such devices and method include use of symmetrical compensation capacitances, symmetrical series capacitors, or symmetrical sizing of the elements of the stack. 1. (canceled)2. An integrated circuit block comprising:a first node;a second node;a series arrangement of one or more capacitive elements; anda series arrangement of a plurality of switches, the one or more capacitive elements are in series with the plurality of switches;', 'a combination of the one or more capacitive elements and the plurality of switches is coupled between the first node and the second node;', 'the plurality of switches are configured to withstand a voltage greater than a voltage withstood by one switch;', 'the plurality of switches are configured to receive a control signal to enable or disable the switches and thereby adjusting the capacitance between the two nodes, and', 'one or more compensation capacitive elements are coupled across at least one switch of the plurality of switches., 'wherein3. The integrated circuit block of claim 3 , wherein the plurality of switches comprises:a set of switches, proceeding from a first switch closest to the first node and farthest from the second node to an n-th switch closest to the second node and farthest from the first node, wherein n is an integer larger than 1.4. The integrated circuit block of claim 3 , wherein n is smaller or equal to a number of switches of the plurality of switches.5. The integrated circuit block of claim 3 , wherein:the one or more compensation capacitive elements comprise a first set of compensation capacitive elements and whereina first compensation capacitive element of the first set of compensation capacitive elements is located in parallel with the first switch, a second compensation capacitive element of the first set of compensation capacitive elements is located in ...

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Номер записи: 66
02-01-2020 дата публикации

PROCESS-INVARIANT DELAY CELL

Номер: US20200007105A1
Автор: CHENG Haitao, Lu Ye, Qiao Dongjiang, Song Chao
Принадлежит:

An integrated circuit (IC) device includes a first resistive strip having an input terminal and an output terminal. The IC device further includes a second resistive strip having a terminal coupled to a voltage. The second resistive strip may be coplanar with the first resistive strip. The IC device further includes a capacitor formed by the first resistive strip and the second resistive strip. 1. An integrated circuit (IC) device comprising:a first resistive strip having an input terminal and an output terminal;a second resistive strip having a terminal coupled to a voltage, the second resistive strip being coplanar with the first resistive strip; anda capacitor formed by the first resistive strip and the second resistive strip.2. The IC device of claim 1 , wherein the first resistive strip and the second resistive strip comprise polysilicon.3. The IC device of claim 1 , wherein the second resistive strip includes portions substantially parallel to the first resistive strip.4. The IC device of claim 1 , wherein the first resistive strip is interdigitated with the second resistive strip.5. The IC device of claim 1 , wherein the first resistive strip and the second resistive strip are configured to be part of a delay cell or a filter.6. The IC device of claim 1 , wherein the first resistive strip and the second resistive strip are serpentine claim 1 , spiral claim 1 , octagonal claim 1 , and/or circular in shape.7. The IC device of claim 1 , wherein the first resistive strip comprises a first resistive material and the second resistive strip comprises a second resistive material that is different from the first resistive material.8. The IC device of claim 1 , wherein a width of the first resistive strip is substantially equal to a gap between the first resistive strip and the second resistive strip.9. The IC device of claim 8 , wherein the width of the first resistive strip is correlated to the gap between the first resistive strip and the second resistive strip such ...

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Номер записи: 67
02-01-2020 дата публикации

MULTIFREQUENCY DEVICE, CONTROLLING AND/OR MONITORING DEVICE, ASSOCIATED MULTIFREQUENCY SYSTEM AND PIECE OF HOME-AUTOMATION EQUIPMENT

Номер: US20200007171A1
Автор: Ramus Michel, ROBIN Serge
Принадлежит:

This multifrequency device () is configured to be connected via at least two conductors () to an electricity supply grid (). This device comprises: at least one radiofrequency module () comprising at least one first and one second input/output port (), which ports are able to emit and/or receive radiofrequency signals at two different frequencies; and at least two matching circuits () that are configured to block the propagation of radiofrequency signals propagating over the conductors, each matching circuit comprising a plurality of terminals. One terminal () of each matching circuit is connected to the first conductor or to the second conductor. One terminal () of each matching circuit is connected to the first input/output port or to the second input/output port of the radiofrequency module. This device also comprises decoupling means (C, C) that are configured to stop the propagation of electrical supply signals between the conductors and between at least one conductor and an input/output port of the radiofrequency module. 1. Multifrequency device designed to be connected by at least first and second conductors to a power supply network , wherein the device comprises:at least one radio frequency module comprising at least a first and a second input/output port, wherein the first input/output port is able to transmit and/or receive radio frequency signals at a first frequency, while the second input/output port is able to transmit and/or receive radio frequency signals on a second frequency that is distinct from the first frequency, wherein a terminal of each tuning circuit is respectively connected to the first conductor or to the second conductor,', 'wherein a terminal of each tuning circuit is respectively connected to the first input/output port, or to the second input/output port of the radio frequency module,, 'at least first and second tuning circuits designed to block the propagation of radio frequency signals being propagated respectively on the first ...

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Номер записи: 68
20-01-2022 дата публикации

MATCHING NETWORK WITH TUNABLE NOTCH FILTER

Номер: US20220021365A1
Автор: MISHRA Chinmaya, VIGILANTE Marco
Принадлежит:

A filter circuit includes a matching network having resistive and capacitive elements, and a transformer in the matching network. The transformer includes a primary side and a secondary side, and has at least one interwinding capacitance coupled from an input on the primary side to a non-inverting output on the secondary side. 1. A filter circuit , comprising:a matching network having resistive and capacitive elements; anda transformer in the matching network, the transformer comprising a primary side and a secondary side, the transformer having at least one interwinding capacitance coupled from an input on the primary side to a non-inverting output on the secondary side.2. The filter circuit of claim 1 , wherein the filter circuit creates a notch response outside of a transmission band using an inductance provided only by an inductance of the transformer.3. The filter circuit of claim 1 , wherein the filter circuit is single-ended.4. The filter circuit of claim 1 , wherein the at least one interwinding capacitance has an adjustable capacitance configured to tune a frequency response of the filter circuit.5. The filter circuit of claim 4 , wherein the larger the capacitance of the at least one interwinding capacitance claim 4 , the lower a notch frequency of the filter circuit.6. The filter circuit of claim 1 , wherein the filter circuit is differential and the transformer comprises an additional interwinding capacitance coupled between a negative input node (input−) on the primary side and a corresponding negative output node (inverting output) on the secondary side.7. The filter circuit of claim 2 , wherein the notch response occurs at a millimeter wave (mmW) frequency.8. The filter circuit of claim 1 , wherein the filter circuit creates an adjustable notch response at one of a lower frequency side and a higher frequency side of a transmission band.9. The filter circuit of claim 8 , wherein the adjustable notch response is selectable to determine a channel ...

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Номер записи: 69
20-01-2022 дата публикации

Devices and Methods for Improving Voltage Handling and/or Bi-Directionality of Stacks of Elements When Connected Between Terminals

Номер: US20220021384A1
Автор: Bawell Shawn, Brindle Christopher N., Englekirk Robert Mark, Greene Robert W., Ranta Tero Tapio
Принадлежит:

Devices and methods for improving voltage handling and/or bi-directionality of stacks of elements when connected between terminals are described. Such devices and method include use of symmetrical compensation capacitances, symmetrical series capacitors, or symmetrical sizing of the elements of the stack. 1. (canceled)3. The integrated circuit block of claim 2 , wherein the one or more compensation capacitors are coupled to a source terminal of the at least one of the three or more FETs4. The integrated circuit block of claim 2 , wherein the compensation capacitors comprise metal-based capacitors.5. The integrated circuit block of claim 2 , wherein the one or more compensation capacitors comprise a first compensation capacitor coupled across drain and source terminals of a first FET of the three or more FETs and a second compensation capacitor coupled across drain and source terminals of a second FET of the three or more FETs.6. The integrated circuit block of claim 5 , wherein the first FET is a top FET in the series arrangement and wherein the first compensation capacitor has a capacitance value higher than the second compensation capacitor.7. The integrated circuit block of claim 5 , wherein the second FET is a bottom FET in the series arrangement and wherein the first compensation capacitor has a capacitance value lower than the second compensation capacitor.8. A digitally tuned capacitor (DTC) comprising a plurality of the integrated circuit blocks of claim 2 , wherein the plurality of the integrated circuit blocks are configured in parallel.10. The integrated circuit block of claim 9 , wherein the compensation capacitors are coupled to a source terminal of the at least one the two or more FETs.11. The integrated circuit block of claim 9 , wherein the compensation capacitors comprise metal-based capacitors.12. A digitally tuned capacitor (DTC) comprising a plurality of the integrated circuit blocks of claim 11 , wherein the plurality of the integrated circuit ...

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Номер записи: 70
03-01-2019 дата публикации

HIGH-FREQUENCY MODULE

Номер: US20190008032A1
Автор: UEJIMA Takanori
Принадлежит:

A high-frequency module includes a branching circuit element, a multilayer substrate, and a shield conductor. The branching circuit element includes transmission and receiving terminals and is disposed on a surface of the multilayer substrate. The shield conductor is disposed on the side of the surface of the multilayer substrate and covers the branching circuit element. The transmission and receiving terminals are disposed with respect to the shield conductor such that a signal in at least a portion of the frequency band of a first signal, which is transmitted from the transmission terminal, is cancelled by a second signal at the receiving terminal. 1. A high-frequency module comprising:a surface mount element including a first mounting terminal and a second mounting terminal;a multilayer substrate at which the surface mount element is disposed; anda shield conductor that is disposed on a side of a surface of the multilayer substrate, covers the surface mount element, and is spaced apart from the surface mount element; whereinwhen a high-frequency signal that passes through between the second mounting terminal and the first mounting terminal is defined as a first signal and a high-frequency signal that transmits from the second mounting terminal to the first mounting terminal via the shield conductor is defined as a second signal, the first mounting terminal and the second mounting terminal are disposed with respect to the shield conductor such that a signal in at least a portion of a frequency band of the first signal is canceled by the second signal at the first mounting terminal.2. The high-frequency module according to claim 1 , wherein claim 1 , when a phase of a signal in at least a portion of the frequency band of the first signal is defined as θand a phase of the second signal is defined as θ claim 1 , the first mounting terminal and the second mounting terminal are disposed with respect to the shield conductor such that a difference of the phases is ...

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Номер записи: 71
27-01-2022 дата публикации

Power Matching Method and Apparatus for Wireless Charging, and Wireless Charging Apparatus

Номер: US20220029461A1
Автор: Wan Shiming
Принадлежит:

Disclosed are a power matching method and apparatus for wireless charging, and a wireless charging apparatus. The method includes receiving first sensing information sensed from a transmitting coil of the wireless transmitter, wherein the transmitting coil includes at least one of a capacitor assembly with adjustable capacitance and an inductor assembly with adjustable inductance; detecting whether resonant frequency has changed according to the first sensing information; and adjusting at least one of capacitance of the capacitor assembly in the transmitting coil of the wireless transmitter and inductance of the inductor assembly in the transmitting coil in response to the resonant frequency changing to make transmitting power of the wireless transmitter be matched with receiving power of a wireless receiver in the wireless charging system, wherein the first sensing information comprises at least one of a first sensing voltage value and a first sensing current value. 1. A power matching apparatus for wireless charging , for a wireless transmitter , comprising:a transmitting coil, comprising at least one of a capacitor assembly with adjustable capacitance and an inductor assembly with adjustable inductance; anda controller electrically connected with the transmitting coil and being configured to receive first sensing information sensed from the transmitting coil, detect whether resonant frequency has changed according to the first sensing information, and adjust at least one of capacitance of the capacitor assembly with adjustable capacitance and inductance of the inductor assembly with adjustable inductance to make transmitting power of the wireless transmitter be matched with receiving power of a wireless receiver in response to the resonant frequency being changed, wherein the first sensing information comprises a first sensing voltage value or a first sensing current value.2. The apparatus as claimed in claim 1 , wherein the inductor assembly with adjustable ...

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Номер записи: 72
27-01-2022 дата публикации

Simulation Model Fitting for Radio Frequency Matching-Network Optimization

Номер: US20220029719A1
Автор: Guu Ting-Yu, Hung Yu-Kai, WU HSIN-HUNG
Принадлежит: Google LLC

This document describes systems and techniques to perform simulation model fitting for radio frequency (RF) matching-network optimization. Using a simulation tool, a simulation model of the RF interface circuitry is generated with matching component values. Port impedances of the simulation model are adjusted to match at least one or more simulated scattering parameters to at least one or more actual scattering parameter of a physical prototype of the RF interface circuitry assembled with the same matching component values. An optimal load-pull location for the RF interface circuitry is also determined. The simulation model is then used to identify a matching pair that corresponds to the optimal load-pull location. In this way, the described systems and techniques can reduce engineering time and improve the accuracy of the tuning process. 1. A method for optimization of a matching network of radio frequency (RF) circuitry , the method comprising:generating a simulation model for the RF circuitry, the RF circuitry having a first port and a second port, the simulation model having initial matching component values;generating, based on the initial matching component values, one or more simulated scattering parameter (S-parameter) measurements for the simulation model;determining one or more actual S-parameter measurements from an RF printed circuit board on which the RF circuitry is embodied with the initial matching component values;adjusting, based on differences between the simulated S-parameter measurements and the actual S-parameter measurements, a port impedance of at least one of the first port or the second port of the simulation model, the adjusting to provide a fitted simulation model for the RF circuitry;selecting an optimal load-pull location for one of the first port or the second port of the RF circuitry based on a measured load-pull location of an RF component to which the first port or the second port will be operably coupled; anddetermining, using the ...

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Номер записи: 73
12-01-2017 дата публикации

Liquid Crystal Inductor Enhanced with Magnetic Nanoparticles

Номер: US20170011835A1
Автор: Corey McKinney Thacker, Jarrod Douglas Fortinberry, John D. Williams, Larry Leon Savage, Preston Tyler Bushey
Принадлежит: Boeing Co

A method and apparatus for managing a magnetic permeability of a core. The apparatus comprises a core and a plurality of electrodes positioned relative to the core. The core comprises a plurality of liquid crystals and a plurality of magnetic nanoparticles. Changing a voltage applied to the plurality of electrodes changes a magnetic permeability of the core.

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Номер записи: 74
12-01-2017 дата публикации

ANTENNA MATCHING APPARATUS

Номер: US20170012599A1
Автор: IWANAGA Minoru
Принадлежит:

A high pass filter includes a first end connected to a first terminal and is a filter that transmits a signal in a first frequency band. A second terminal is connected to a second end of the high pass filter. A first switch includes a first end connected to the second end of the high pass filter. A third terminal is connected to a second end of the first switch. A low pass filter includes a first end connected to the first terminal and is a filter that transmits a signal in a second frequency band lower than the first frequency band. A fourth terminal is connected to a second end of the low pass filter. A second switch includes a first end connected to the second end of the low pass filter. A fifth terminal is connected to the second end of the second switch. 1. An antenna matching apparatus comprising:a first terminal;a high pass filter including a first end connected to the first terminal, and transmitting a signal in a first frequency band;a low pass filter including a first end connected to the first terminal, and transmitting a signal in a second frequency band lower than the first frequency band;a second terminal connected to a second end of the high pass filter;a first switch including a first end connected to the second end of the high pass filter;a third terminal connected to a second end of the first switch;a fourth terminal connected to a second end of the low pass filter;a second switch including a first end connected to the second end of the low pass filter; anda fifth terminal connected to a second end of the second switch.2. The antenna matching apparatus according to claim 1 , wherein a signal in the first frequency band is input into and output to the first terminal and claim 1 , simultaneously claim 1 , a signal in the second frequency band is input into and output to the first terminal.3. The antenna matching apparatus according to claim 1 , further comprising:a third switch including a first end connected to the second end of the second switch; ...

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Номер записи: 75
11-01-2018 дата публикации

COIL COMPONENT

Номер: US20180012700A1
Автор: Jang Su Bong, JUNG Min Ki, KIM Han, Lee Sang Jong
Принадлежит:

A coil component may include a body including a plurality of insulating layers having coil patterns disposed on the plurality of insulating layers. The coil pattern may include a coil portion, a leading portion disposed on one side of the insulating layer, and a connection portion connecting the coil portion and the leading portion, a pattern line of the coil portion may have an arc shape, and the connection portion may be formed in a tangent line direction of the coil portion from one end of the leading portion. 1. A coil component , comprising:a body including a plurality of insulating layers having coil patterns disposed on the plurality of insulating layers,wherein the coil pattern includes a coil portion, a leading portion disposed on one side of the insulating layer, and a connection portion connecting the coil portion and the leading portion,a pattern line of the coil portion has an arc shape, andthe connection portion is formed in a tangent line direction of the coil portion from one end of the leading portion.2. The coil component of claim 1 , wherein the pattern line of the coil portion has any one of circular claim 1 , oval claim 1 , and track shapes.3. The coil component of claim 1 , wherein the leading portion is formed on a lower portion of one side of the insulating layer and has an L-letter shape.4. The coil component of claim 1 , wherein the connection portion contacts an upper portion of the coil portion.5. The coil component of claim 1 , wherein the coil patterns are connected to each other by a via.6. The coil component of claim 5 , wherein the pattern line of the coil portion has a track shape claim 5 , andthe via is disposed in a straight section of the coil portion.7. The coil component of claim 1 , wherein the body has a top surface claim 1 , a bottom surface claim 1 , and an end surface connecting the top surface and the bottom surface claim 1 , andthe coil pattern is stacked in a direction perpendicular to the top surface and the bottom ...

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Номер записи: 76
14-01-2021 дата публикации

POWER ELECTRONICS FOR USE IN SMART CARDS AND OTHER APPLICATIONS

Номер: US20210012176A1
Автор: DIAZ Victor, FREITAS Vitor, LLOYD Alison
Принадлежит:

Disclosed herein is a mounting system for a near field RF communications chip. The system comprises: (i) a substrate for carrying electronic components, and for providing electrical interconnections therebetween; (ii) a chip coupling carried by the substrate for connecting a near field RF communications chip () to the mounting system; (iii) an auxiliary power provider (), separate from said near field RF communications chip, and adapted for providing electrical power output based on a received alternating electrical signal; (iv) an antenna coupling for connecting a near field RF communications antenna () to said mounting system; and (v) a splitter (), for splitting alternating electrical signals. 1. A mounting system for a near field RF communications chip , the system comprising:a substrate for carrying electronic components, and for providing electrical interconnections therebetween;a chip coupling carried by the substrate for connecting a near field RF communications chip to the mounting system;an auxiliary power provider, separate from said near field RF communications chip, and adapted for providing electrical power output based on a received alternating electrical signal; and,an antenna coupling for connecting a near field RF communications antenna to said mounting system; and a first port connected to the antenna coupling and having a first input impedance;', 'a second port connected to the first port and configured to provide a first part of the alternating electrical signal to the auxiliary power provider; and', 'a third port connected to the first port and configured to provide a second part of the alternating electrical signal to the chip coupling;, 'a splitter, for splitting alternating electrical signals, the splitter comprising the output impedance of the second port is maintained in the event of fluctuations in the output impedance of the third port; and', 'the output impedance of the third port is maintained in the event of fluctuations in the output ...

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Номер записи: 77
10-01-2019 дата публикации

RF IMPEDANCE MATCHING CIRCUIT AND SYSTEMS AND METHODS INCORPORATING SAME

Номер: US20190013185A1
Автор: Bhutta Imran Ahmed, Ulrich Michael Gilliam
Принадлежит:

In one embodiment, a semiconductor processing tool includes a plasma chamber and an impedance matching circuit. The matching circuit includes a first electronically variable capacitor having a first variable capacitance, a second electronically variable capacitor having a second variable capacitance, and a control circuit. The control circuit is configured to determine a variable impedance of the plasma chamber, determine a first capacitance value for the first electronically variable capacitor and a second capacitance value for the second electronically variable capacitor, and generate a control signal to alter at least one of the first variable capacitance and the second variable capacitance to the first capacitance value and the second capacitance value, respectively. An elapsed time between determining the variable impedance of the plasma chamber to when RF power reflected back to the RF source decreases is less than about 150 μsec. 1. A radio frequency (RF) impedance matching circuit comprising:an RF input configured to operably couple to an RF source;an RF output configured to operably couple to a plasma chamber;a first electronically variable capacitor having a first variable capacitance;a second electronically variable capacitor having a second variable capacitance; and determine a variable impedance of the plasma chamber;', 'determine a first capacitance value for the first electronically variable capacitor and a second capacitance value for the second electronically variable capacitor; and', 'generate a control signal to alter at least one of the first variable capacitance and the second variable capacitance to the first capacitance value and the second capacitance value, respectively;', 'wherein an elapsed time between determining the variable impedance of the plasma chamber to when RF power reflected back to the RF source decreases is less than about 150 μsec., 'a control circuit operably coupled to the first and second electronically variable capacitors ...

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Номер записи: 78
11-01-2018 дата публикации

Window Function Processing Module

Номер: US20180013410A1
Автор: LIANG YINGSI, WEN Ya-Nan, YANG Fu-Chiang
Принадлежит:

The present application provides a window function processing module including an integrating circuit, configured to receive an integrating input signal, the integrating circuit comprising an operational amplifier; an integrating capacitor, coupled to an output terminal and a first input terminal of the operational amplifier; and an adjustable impedance module, coupled between the first input terminal of the operational amplifier and an integrating input terminal of the integrating circuit, wherein the adjustable impedance module is controlled by at least one control signal to adjust an impedance value of the adjustable impedance module; and a control unit, coupled to the integrating circuit, configured to generate the at least one control signal according to a window function, to adjust the integration gain of the integrating circuit, such that the integrating output signal is related to an operation result of the integrating input signal and the window function. 1. A window function processing module , comprising: an operational amplifier;', 'an integrating capacitor, coupled to an output terminal and a first input terminal of the operational amplifier; and', 'an adjustable impedance module, coupled between the first input terminal of the operational amplifier and an integrating input terminal of the integrating circuit, wherein the adjustable impedance module is controlled by at least one control signal to adjust an impedance value of the adjustable impedance module, and the impedance value is related to an integration gain of the integrating circuit; and, 'an integrating circuit, configured to receive an integrating input signal to generate an integrating output signal, the integrating circuit comprisesa control unit, coupled to the integrating circuit, configured to generate the at least one control signal according to a window function, to adjust the integration gain of the integrating circuit, such that the integrating output signal is related to an operation ...

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Номер записи: 79
10-01-2019 дата публикации

MULTIPLEXER

Номер: US20190013793A1
Автор: TAKAMINE Yuichi
Принадлежит:

A multiplexer includes a common connection terminal on a first surface of a substrate and to be connected to an antenna element, and transmission-side and reception-side elastic wave filters of Band25 and Band66 mounted on a second surface of the substrate opposite the first surface, that are connected to the common connection terminal, and that have pass bands different from each other. The transmission-side elastic wave filter of Band66 is located nearest on the substrate to the common connection terminal among the elastic wave filters. 1. A multiplexer that transmits and receives high-frequency signals via an antenna element , the multiplexer comprising:a substrate including a first surface and a second surface opposite the first surface;a common connection terminal that is disposed on the first surface of the substrate and that is to be connected to the antenna element; andat least three elastic wave filters that are mounted on the second surface of the substrate, that are connected to the common connection terminal, and that have pass bands different from each other; whereina first elastic wave filter of the at least three elastic wave filters, which generates a spurious wave at a frequency that is included in a pass band of a second elastic wave filter that is at least one of the elastic wave filters that differs from the first elastic wave filter among the at least three elastic wave filters, is located nearest on the substrate to the common connection terminal among the at least three elastic wave filters.2. The multiplexer according to claim 1 , wherein the second elastic wave filter is located nearer on the substrate to the common connection terminal than at least one elastic wave other than the first elastic wave filter and the second elastic wave filter among the at least three elastic wave filters.3. The multiplexer according to claim 1 , whereinthe substrate includes a plurality of layers; anda wiring line connecting the first elastic wave filter and ...

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Номер записи: 80
09-01-2020 дата публикации

INDUCTOR

Номер: US20200013537A1
Автор: Hong Seung Hee, Jang Su Bong, JUNG Min Ki, Lee Sang Jong, Song Seung Jae
Принадлежит:

An inductor includes a body including a plurality of insulating layers and a plurality of coil patterns are disposed on each of the plurality of insulating layers, and first and second external electrodes disposed on an external surface of the body. The plurality of coil patterns are connected to each other by coil connecting portions and both end portions thereof are electrically connected to the first and second external electrodes through coil lead portions, respectively, to form a coil. The plurality of coil patterns include coil patterns disposed on an outer portion of the body and coil patterns disposed on an inner portion of the body, the coil patterns disposed on the inner portion of the body include first coil patterns electrically connected in parallel, and at least one of the first coil patterns includes an internal side portion having a shape different from shapes of remaining coil patterns. 1. An inductor comprising:a body including a plurality of insulating layers and a plurality of coil patterns disposed on each of the plurality of insulating layers; andfirst and second external electrodes disposed on an external surface of the body,wherein the plurality of coil patterns are connected to each other by coil connecting portions, and both end portions thereof are electrically connected to the first and second external electrodes through coil lead portions, respectively, to form a coil, and,the plurality of coil patterns include coil patterns disposed on an outer portion of the body and coil patterns disposed on an inner portion of the body, the coil patterns disposed on the inner portion of the body include first coil patterns electrically connected in parallel, and at least one of the first coil patterns includes an internal side portion having a shape different from shapes of remaining coil patterns.2. The inductor of claim 1 , wherein the first coil patterns electrically connected in parallel have corner portions having shapes different from each ...

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Номер записи: 81
14-01-2021 дата публикации

POWER AMPLIFIER WITH SHIELDED TRANSMISSION LINES

Номер: US20210013572A1
Автор: ZHU Ning
Принадлежит:

A power amplifier module includes a first phase shifter, a second phase shifter, and an electromagnetic shield. The first phase shifter includes a first transmission line assembly to shift a first amplified signal by a first phase angle. The second phase shifter includes a second transmission line assembly to shift a second amplified signal by a second phase angle. The electromagnetic shield is arranged to shield the first transmission line assembly from the second transmission line assembly. The power amplifier module may have, for example, Doherty amplifier configuration. 1. A power amplifier module , comprising:a first phase shifter configured to shift a first amplified signal by a first phase angle, wherein the first phase shifter includes a first transmission line assembly;a second phase shifter configured to shift a second amplified signal by a second phase angle that is different from the first phase angle, wherein the second phase shifter includes a second transmission line assembly; andan electromagnetic shield between the first and second phase shifters, wherein the electromagnetic shield is arranged to shield the first transmission line assembly from the second transmission line assembly.2. The power amplifier module of claim 1 , wherein the electromagnetic shield includes at least one vertical barrier claim 1 , the at least one vertical barrier including one or more dielectric layers interleaved between a plurality of metal layers claim 1 , the plurality of metal layers electrically connected to at least one of the first transmission line assembly and the second transmission line assembly and at least one of the plurality of metal layers includes or is connected to a ground layer.3. The power amplifier module of claim 2 , further comprising:a number of conductive vias extending through the one or more dielectric layers to connect a first one of the metal layers to a second one of the metal layers.4. The power amplifier module of claim 3 , wherein the ...

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Номер записи: 82
14-01-2021 дата публикации

System for transmitting/receiving wireless power and display apparatus comprising same system

Номер: US20210013744A1
Автор: Youngho Choi
Принадлежит: SAMSUNG ELECTRONICS CO LTD

Disclosed is a system for transmitting/receiving wireless power, the system includes a wireless power transmitter including an inverter that generates a first current using an input power source, a first resonant circuit to which the first current is applied to transmit a power signal, and a first controller that controls the inverter, and a wireless power receiver including a second resonant circuit that receives the power signal, an impedance varying unit that varies an impedance of the second resonant circuit, and a second controller that controls the impedance varying unit, wherein the first controller controls the inverter to spread a frequency spectrum of the power signal, and the second controller controls the impedance varying unit such that the second resonant circuit resonates with the power signal generated from the first resonant circuit of the wireless power transmitter. Additional various embodiments recognized through the specification are possible.

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Номер записи: 83
11-01-2018 дата публикации

Quasi-Resonant Plasma Voltage Generator

Номер: US20180014398A1
Автор: Buchanan Walter Riley, Forsee Grant William
Принадлежит:

Traditional plasma voltage generator circuits consist mainly of fly-back or pulse forming networks. These systems tend supply plasma generating pulses to plasma reactors at frequencies less than 30 kHz with most being less than 5 kHz. In addition these traditional plasma voltage generators are limited in the ability to adjust to dynamic reactor conditions, are energy inefficient and are limited in the amount of material ionized. An innovative drive system is presented herein that is energy efficient, can operate at frequencies below and well above 30 kHz, and can react to dynamic conditions in the plasma reactor allowing much greater flexibility and enhanced operating capabilities. 1. A method of generating a plasma voltage sufficient to initiate and sustain a plasma in a plasma reactor consisting of:a voltage supply capable of supplying a voltage to a transformer;a transformer consisting of at least one primary and one secondary winding; anda polarity sensitive device or circuit such as a blocking diode in series with the transformer and switch; anda switch capable of turning on and off and conducting current from the voltage supply and through the transformer and polarity sensitive device; anda phase detector capable of detecting a rising voltage on the switch side of the transformer; anda zero cross detection circuit; anda switch driver capable of turning on and off the switch as directed by the phase detector and zero cross detector; and2. The method of claim 1 , further comprising of a duty cycle controller capable of signaling the switch driver when to initiate and stop an operation cycle and control the number of on cycles and relaxation time.3. The method in claim 1 , further comprising an impedance matching network in parallel with claim 1 , in series parallel with claim 1 , or in series with the plasma reactor.4. The method of where the zero cross detector is replaced with a timing circuit to provide the turn off timing to the switch driver.5. The method ...

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Номер записи: 84
14-01-2021 дата публикации

On-Chip Harmonic Filtering For Radio Frequency (RF) Communications

Номер: US20210013857A1
Автор: Atalla Essam S., Elkholy Mohamed M., Sun Ruifeng
Принадлежит:

Systems and methods are disclosed for on-chip harmonic filtering for radio frequency (RF) communications. A filtering and matching circuit for an integrated circuit includes a first capacitance coupled in parallel with a first inductance, a second inductance coupled to the first inductance, and a variable second capacitance coupled between the first and second inductance. The variable second capacitance is controlled to provide filtering with respect to the RF signal as well as impedance matching with respect to a load coupled to the connection pad. For one embodiment, the variable second capacitance includes a coarse-tune variable capacitor circuit and a fine-tune variable capacitor circuit. The coarse-tuning controls impedance matching, and the fine tuning controls a notch for the filtering. The load can be an antenna for the RF communications. The integrated circuit can include a receive path, a transmit path, or both. 1. An integrated circuit , comprising:a circuit coupled between a first node and a connection pad for the integrated circuit, the circuit comprising:a first inductance coupled between the first node and a second node;a first capacitance coupled between the first node and the second node in parallel with the first inductance, wherein a total capacitance value between the first node and the second node is a non-variable capacitance value; 'a second inductance coupled between the second node and the connection pad; and', 'a variable second capacitance coupled between the second node and ground; and'}a controller coupled to control a capacitance amount for the variable second capacitance without controlling the first capacitance, to determine filtering with respect to a radio frequency (RF) signal passing through the circuit and to determine impedance matching with respect to a load coupled to the connection pad.2. The integrated circuit of claim 1 , wherein two separate inductor structures are used to provide the first inductance and the second ...

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Номер записи: 85
09-01-2020 дата публикации

HIGH FREQUENCY MODULE AND COMMUNICATION DEVICE

Номер: US20200014341A1
Автор: HONDA Akifumi
Принадлежит:

A high frequency module includes a first amplifier circuit, a second amplifier circuit, a first matching circuit connected to the first amplifier circuit, and a second matching circuit connected to the second amplifier circuit, wherein the first matching circuit and the second matching circuit are arranged adjacent to each another. The first matching circuit may be provided on an output side of the first amplifier circuit. 1. A high frequency module comprising:a first amplifier circuit;a second amplifier circuit;a first matching circuit connected to the first amplifier circuit; anda second matching circuit connected to the second amplifier circuit, whereinthe first matching circuit and the second matching circuit are arranged adjacent to each another.2. The high frequency module according to claim 1 , whereinthe first matching circuit is connected to an output port of the first amplifier circuit, andthe second matching circuit is connected to an output port of the second amplifier circuit.3. The high frequency module according to claim 1 , whereinthe first matching circuit includes a first element,the second matching circuit includes a second element, andthe first element and the second element are coupled by at least one of electrical coupling or magnetic coupling.4. The high frequency module according to claim 2 , whereinthe first matching circuit includes a first element,the second matching circuit includes a second element, andthe first element and the second element are coupled by at least one of electrical coupling or magnetic coupling.5. The high frequency module according to claim 3 , whereinthe first element is a first inductive element connected between an input port and an output port of the first matching circuit,the second element is a second inductive element connected between an input port and an output port of the second matching circuit, andthe first inductive element and the second inductive element are magnetically coupled.6. The high frequency ...

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Номер записи: 86
09-01-2020 дата публикации

MULTIPLEXER, HIGH-FREQUENCY FRONT END CIRCUIT, AND COMMUNICATION DEVICE

Номер: US20200014370A1
Автор: Kato Masanori, KIDO Syunsuke, MATSUBARA Hiroshi
Принадлежит:

A hybrid multiplexer includes a filter configured to allow a high-frequency signal of an HB to pass therethrough, and a filter configured to allow a high-frequency signal of an MB to pass therethrough, in which the filter includes a matching circuit, a first resonance circuit defined by one of an LPF and an HPF, and a second resonance circuit defined by the other of the LPF and the HPF, the LPF includes an inductor and a parallel arm resonator, the HPF includes a serial arm resonator and an inductor, and a resonant frequency of the parallel arm resonator and an anti-resonant frequency of the serial arm resonator are both located between a frequency at a low-band end of the HB and a frequency at a high-band end of the HB. 1. A multiplexer comprising:a common terminal;a first filter connected to the common terminal and configured to allow passing of a first frequency band;a second filter connected to the common terminal and configured to allow passing of a second frequency band which does not overlap with the first frequency band; wherein a matching circuit connected to the common terminal;', 'a first resonance circuit cascade connected to the matching circuit and defining one of a low pass filter and a high pass filter; and', 'a second resonance circuit cascade connected to the first resonance circuit and defining another of the low pass filter and the high pass filter;, 'the second filter includes a first inductor provided on a signal path connecting a first terminal and a second terminal of the second filter; and', 'a first parallel arm resonator that is an acoustic wave resonator connected between a node on the signal path and a ground;, 'the low pass filter includes a first serial arm resonator that is an acoustic wave resonator provided on the signal path; and', 'a second inductor connected between a node on the signal path and the ground; and, 'the high pass filter includesa resonant frequency of the first parallel arm resonator and an anti-resonant frequency ...

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Номер записи: 87
09-01-2020 дата публикации

Method and Apparatus for use in Digitally Tuning a Capacitor in an Integrated Circuit Device

Номер: US20200014382A1
Автор: Ranta Tero Tapio
Принадлежит:

A method and apparatus for use in a digitally tuning a capacitor in an integrated circuit device is described. A Digitally Tuned Capacitor DTC is described which facilitates digitally controlling capacitance applied between a first and second terminal. In some embodiments, the first terminal comprises an RF+ terminal and the second terminal comprises an RF− terminal. In accordance with some embodiments, the DTCs comprise a plurality of sub-circuits ordered in significance from least significant bit (LSB) to most significant bit (MSB) sub-circuits, wherein the plurality of significant bit sub-circuits are coupled together in parallel, and wherein each sub-circuit has a first node coupled to the first RF terminal, and a second node coupled to the second RF terminal. The DTCs further include an input means for receiving a digital control word, wherein the digital control word comprises bits that are similarly ordered in significance from an LSB to an MSB. 1. A module comprising at least one integrated circuit chip , wherein a first node;', 'a second node; and', 'a series arrangement of one or more capacitive elements and two or more switches coupled between the first node and the second node;, 'i) the at least one integrated circuit chip is incorporated into the module and includesii) the two or more switches are configured to withstand a voltage greater than a voltage withstood by one switch;iii) each of the two or more switches has a control node connectable to a control signal via a resistive element; andiv) the control signal is configured to enable or disable the two or more switches, thereby adjusting the capacitance between the first node and the second node.2. The module of claim 1 , wherein a capacitive element of the one or more capacitive elements connects a top switch of the two or more switches to the first node claim 1 , the top switch being the closest switch to the first node and the farthest switch from the second node.3. The module of claim 1 , ...

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Номер записи: 88
16-01-2020 дата публикации

Integrated ecg electrode and antenna radiator

Номер: US20200015701A1
Автор: Christos Kinezos Ioannou, Dennis Jacob McCray, Faton Tefiku, Kevin Li, Kyung Nim NOH, Lindsey Michelle Sunden, Man-Chi LIU, Peter W. Richards, Yonghua Wei
Принадлежит: Fitbit LLC

Multiple circuits in a computing device can share one or more conductive elements. The use of the conductive element can vary by circuit, such as an antenna radiator for a radio frequency (RF) circuit or an electrode for an electrocardiography (ECG) circuit. The circuitry sharing a conductive element can utilize signals obtained over different frequency ranges. Those ranges can be used to select decoupling circuitry, or elements, that can enable the respective circuits to obtain signals over a respective frequency range, excluding signals over one or more other frequency ranges corresponding to other circuitry sharing the circuit. Such an approach allows for concurrent independent operation of the circuitry sharing a conductive element.

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Номер записи: 89
21-01-2016 дата публикации

WIRELESS POWER TRANSMISSION DEVICE

Номер: US20160020600A1
Автор: HOSOKAWA Yuichi, MAKITA Kazumasa, Mishina Koichi, Mori Masashi, Sakurai Yuichi, Urata Junetsu
Принадлежит: NEC TOKIN CORPORATION

A wireless power transmission device includes: a wireless power transmission unit, a power transmission circuit, a wireless communication unit, an interruption circuit, a communication circuit, and a control circuit. The power transmission circuit is connected to the wireless power transmission unit and wirelessly transmits power through the wireless power transmission unit to another party's device. The interruption circuit is connected to the wireless communication unit. The communication circuit is connected through the interruption circuit to the wireless communication unit and communicates with the other party's device via the wireless communication unit. The control circuit is connected to the power transmission circuit and the interruption circuit and, when the power is transmitted, controls the interruption circuit to interrupt between the wireless communication unit and the communication circuit on the basis of a power level transmitted by the power transmission circuit.

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Номер записи: 90
21-01-2016 дата публикации

Energy Harvesting System

Номер: US20160020631A1
Автор: Manova-Elssibony Asaf
Принадлежит:

A system is presented for harvesting electromagnetic energy propagating in surroundings. The system comprises an antenna unit, a harvesting unit, and an input signal adapting circuit. The antenna unit is configured for receiving external electromagnetic radiation from the surroundings and producing a corresponding electric output. The harvesting unit comprises at least one energy harvesting circuit each configured and operable for receiving signals indicative of the output of the antenna unit and generating and storing corresponding electric charge, the harvesting circuit comprising: a rectifying unit comprising a plurality of rectifiers each configured and operable to receive AC electric signals and generate corresponding DC electric power; and a charge collection unit configured and operable to receive the plurality of DC electric powers from said rectifying unit and converting and accumulating them into the electric charge presenting harvested energy. The input signal adapting circuit has an input connected to the antenna unit and an output connected to the rectifying unit, the input signal adapting circuit being configured and operable for adjusting a predetermined electrical property of the antenna unit and rectifying unit to thereby optimize receipt of the electric output of the antenna unit to the harvesting circuit. 1. A system for harvesting electromagnetic energy propagating in surroundings , said system comprising:an antenna unit configured for receiving external electromagnetic radiation from the surroundings and producing a corresponding electric output;a harvesting unit comprising at least one energy harvesting circuit each configured and operable for receiving signals indicative of the output of the antenna unit and generating and storing corresponding electric charge, the harvesting circuit comprising: a rectifying unit comprising a plurality of rectifiers each configured and operable to receive AC electric signals and generate corresponding DC ...

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Номер записи: 91
21-01-2016 дата публикации

Two-stage noise filter and electronic device including the same

Номер: US20160020745A1
Автор: Jin-Hyung Lee, Sung-Yong Joo
Принадлежит: SAMSUNG ELECTRONICS CO LTD

Disclosed are a two-stage noise filter, in which two filters are integrated, and an electronic device including the same. The two-stage noise filter includes a core configured to include a primary side and a secondary side opposite to the primary side; a first filter configured to include a first coil wound on the primary side of the core and a second coil wound on the secondary side of the core; a second filter configured to include a third coil wound on the primary side of the core in series with the first coil and a fourth coil wound on the secondary side of the core in series with the second coil; and an impedance balancer configured to keep a balance of impedance between the first and second filters.

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Номер записи: 92
17-04-2014 дата публикации

Impedance Matching Network with Improved Quality Factor and Method for Matching an Impedance

Номер: US20140104132A1
Автор: Anthony Thomas, Winfried Bakalski
Принадлежит: INFINEON TECHNOLOGIES AG

An impedance matching network comprises a first and a second signal terminal and a reference potential terminal. The network further comprises a first shunt branch between the first signal terminal and the reference potential terminal, the first shunt branch comprising a variable inductive element and a first capacitive element. The impedance matching network also comprises a second shunt branch between the second signal terminal and the reference potential terminal and comprising a second capacitive element. A series branch between the first signal terminal and the second signal terminal comprises a third capacitive element. Optionally, the first, second, and/or third capacitive element may be implemented as a variable capacitive element. The variable capacitive element comprises a plurality of transistors, wherein a combination of off-capacitances C off of the transistors provide an overall capacitance of the variable capacitive element as a function of at least two independent transistor control signals.

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Номер записи: 93
22-01-2015 дата публикации

Capacitors Adapted for Acoustic Resonance Cancellation

Номер: US20150022281A1
Автор: Kozyrev Andery, Martin James, Oakes James, Prudan Alexandr
Принадлежит:

An embodiment of the present invention provides a method, comprising reducing the losses due to electro-mechanical coupling and improving Q in a multilayered capacitor by placing a first capacitor layer adjacent at least one additional capacitor layer and sharing a common electrode in between the two such that the acoustic vibration of the first layer is coupled to an anti-phase acoustic vibration of the at least one additional layer. 1. A device comprising:a matching network including first and second voltage tunable capacitors, wherein the first voltage tunable capacitor has a first electrode, wherein the second voltage tunable capacitor has a second electrode, wherein the first and second electrodes are positioned in proximity to each other, and wherein the first and second voltage tunable capacitors share a common electrode; anda bias element coupled with the matching network, wherein the bias element applies a bias voltage to the first electrode of the first voltage tunable capacitor and to the second electrode of the second voltage tunable capacitor causing the first and second voltage tunable capacitors to vibrate in opposite phase to each other substantially cancelling first and second electro-mechanical vibrations generated by the first and second voltage tunable capacitors, andwherein the common electrode is unbiased.2. The device of claim 1 , wherein the common electrode is positioned opposite to the first and second electrodes.3. The device of claim 1 , wherein the first and second voltage tunable capacitors comprise a single tunable dielectric layer positioned between the common electrode and the first and second electrodes.4. The device of claim 3 , wherein the first and second electrodes are positioned along an outer surface of the single tunable dielectric layer.5. The device of claim 3 , wherein the single tunable dielectric layer comprises barium strontium titanate.6. The device of claim 1 , wherein the first and second voltage tunable capacitors ...

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Номер записи: 94
18-01-2018 дата публикации

PLUG CONNECTOR FOR TUNING CROSSTALK AND RETURN LOSS

Номер: US20180020539A1
Автор: Bottman Jeffrey S., Winston William F., WITTMANN-TODD Paul
Принадлежит:

A method and apparatus for tuning crosstalk and return loss are provided. In the method and apparatus, a filter tunes return loss caused by a first external terminal and a second external terminal to compensate for a capacitive load induced by sizes of and a proximity between the first and second external terminals. The filter decouples the tuning of the return loss from tuning a magnitude and a phase of a crosstalk between a first transmission line network and a second transmission line network such that the return loss is tuned with minimal impact on the crosstalk. 1. An apparatus , comprising:a printed circuit board;a plurality of external terminals at a first end of the printed circuit board; anda plurality of internal terminals at a second end of the printed circuit board, the printed circuit board including a filter coupled to a first external terminal and a second external terminal of the plurality of external terminals, the filter including a first inductor coupled between the first external terminal and a first side of a capacitor, and a second inductor coupled between the second external terminal and a second side of the capacitor, the filter being operative to tune return loss caused by the first and second external terminals and help compensate for a capacitive load induced by sizes of and a proximity between the first and second external terminals.2. The apparatus of claim 1 , wherein the printed circuit board further includes a first transmission line network including a first transmission line and a second transmission line claim 1 , the first transmission line being coupled between the first side of the capacitor and a first internal terminal and the second transmission line being coupled between the second side of the capacitor and a second internal terminal claim 1 , each of the first and second transmission lines being located on the printed circuit board within a distance of a second transmission line network to tune a magnitude of crosstalk ...

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Номер записи: 95
17-01-2019 дата публикации

Phase-Switched Impedance Modulation Amplifier

Номер: US20190020313A1
Автор: JURKOV Alexander Sergeev, Perreault David J.
Принадлежит:

Described is a phase-switched phase-switched, impedance modulation amplifier (PSIM). The PSIM has an input that can be coupled to a source and an output that can be coupled to a load. The PSIM includes one or more phase-switched reactive elements and a controller. The controller provides a control signal to each of the one or more phase-switched reactive elements. In response to one or more control signals provided thereto, each phase-switched reactive element provides a corresponding selected reactance value such that an impedance presented to an input or output port of an RF amplifier may be varied. 1an RF amplifier having an input port coupled to the input port of the RF amplifier system and having an output port; anda phase-switched tunable impedance network coupled between the output port of the RF amplifier and an output port of the RF amplifier system, the phase-switched tunable impedance network configured such that in response to input signal provided thereto, the phase-switched tunable impedance network varies an impedance thereof to modulate an impedance presented to the output port of the RF amplifier.. A radio frequency (RF) amplifier system having an input port and an output port, the RF amplifier system comprising: This application is a continuation of U.S. application Ser. No. 14/975,742 filed on Dec. 19, 2015 which is a continuation of and claims the benefit under 35 U.S.C. § 120 of U.S. application Ser. No. 14/974,563, filed on Dec. 18, 2015, now U.S. Pat. No. 9,755,576 and which claims the benefit under 35 U.S.C. § 119(e) of U.S. provisional application No. 62/094,144, filed on Dec. 19, 2014. Each of the above applications are hereby incorporated herein by reference in its entireties.Impedance matching networks are commonly used for maximizing power transfer within many radio frequency (RF) and microwave systems. For example, in RF transmitters, impedance matching networks might be used to provide an impedance match from an output impedance of an ...

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Номер записи: 96
17-01-2019 дата публикации

APPARATUS FOR MONITORING RADIO FREQUENCY SIGNALS

Номер: US20190020367A1
Автор: CONWAY NATHANIEL J., CRAWFORD ANTHONY J., FOLEY KURT M., GLASS DANIEL W., JOSEPH JOHN C., PETERS CHRISTOPHER N., TREMBLAY MASON
Принадлежит:

An apparatus for monitoring radio frequency (RF) signals is disclosed. The apparatus includes an RF splitter, a set of track-and-hold circuits, a set of analog-to-digital circuits (ADC) and a frequency tracking module. The RF splitter splits a set of incoming RF signals into multiple RF signal paths. Each of the track-and-hold circuits, which is clocked at a different frequency than others, samples the incoming RF signals from a respective one of the RF signal paths. Each of the ADCs receives the sampled data from a respective one of the track-and-hold circuits. Each of the ADCs is also clocked at same frequency as a corresponding one of the track-and-hold circuits. The frequency tracking module determines a frequency of the incoming RF signals. 1. An apparatus for monitoring radio frequency (RF) signals , said apparatus comprising:an RF splitter for splitting a set of incoming RF signals into a plurality of RF signal paths;a plurality of track-and-hold circuits coupled to respective RF signal paths, wherein said track-and-hold circuits are clocked at a different frequency;a plurality of analog-to-digital circuits (ADC) coupled to respective track-and-hold circuit, receiving sampled data from the track-and-hold circuit, wherein the respective ADC is clocked at a same frequency as the respective track-and-hold circuit; anda frequency tracking module for determining a frequency of said incoming RF signals.2. The apparatus of claim 1 , wherein said apparatus further includes an antenna array for receiving said incoming RF signals.3. The apparatus of claim 2 , wherein said apparatus further includes an automatic gain control module for controlling said incoming RF signals in order to prevent said apparatus from operating in saturation.4. The apparatus of claim 3 , wherein said apparatus further includes a filter module having a plurality of filters for filtering said incoming RF signals.5. The apparatus of claim 4 , wherein said filters are selectable by a user.6. The ...

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Номер записи: 97
25-01-2018 дата публикации

APPARATUS FOR MEASURING BIOIMPEDANCE AND ELECTRODE-SIDE BOARD THEREOF

Номер: US20180020945A1
Автор: Woo Jong Bum
Принадлежит: InBody Co., Ltd.

A bioimpedance measurement apparatus is provided. The bioimpedance measurement apparatus includes an electrode-side board that is configured to be connected to a current electrode in contact with a body and that includes a current source configured to apply a current to the current electrode. The electrode-side board may be connected via a cable to a board in which a processing circuit configured to process a signal acquired through the electrode-side board and/or a frequency signal generator configured to provide a predetermined frequency signal to the electrode-side board are located. 1. A bioimpedance measurement apparatus comprising:an electrode-side board configured to be connected to at least one electrode in contact with a body, the electrode-side board comprising a current source configured to apply a current to a current electrode among the at least one electrode.2. The bioimpedance measurement apparatus of claim 1 , further comprising:a current detection circuit configured to detect a current generated by the current source,wherein the current detection circuit is located in the electrode-side board.3. The bioimpedance measurement apparatus of claim 1 , whereinthe current source comprises a driver integrated circuit (IC) used to apply a current, andthe current source is further configured to generate a current that is to be applied to the current electrode in response to a frequency signal being received.4. The bioimpedance measurement apparatus of claim 1 , further comprising:a relay configured to be connected between the current electrode and the current source,wherein the relay is configured to be open when a current is not applied to the current electrode by the current source.5. The bioimpedance measurement apparatus of claim 1 , wherein the electrode-side board is connected to a board that comprises at least one of a processing circuit configured to process a signal acquired through the electrode-side board or a frequency signal generator configured ...

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Номер записи: 98
16-01-2020 дата публикации

LOW NOISE AMPLIFIER WITH IMPROVED ABSOLUTE MAXIMUM RATING PERFORMANCE

Номер: US20200021254A1
Автор: SHIM Hyun Chul, SHIN Hwa Hyeong
Принадлежит:

The present disclosure provides a low noise amplifier with improved absolute maximum rating performance. The low noise amplifier with improved absolute maximum rating performance includes at least one transistor utilized to amplify a input signal externally inputted through an input line of the low noise amplifier; a bias unit connected to the input line and configured to set a driving condition of the transistor; impedance matching unit configured to match an impedance of the low noise amplifier; a blocking capacitor connected to the input line and configured to block a direct current of the input signal; and a first diode unit connected to a first end of the transistor and a second end of the transistor. The first diode unit is configured to adjust a voltage between the first end of the transistor and the second end of the transistor under a first standard voltage. 1. A low noise amplifier with improved absolute maximum rating performance , comprising:at least one transistor utilized to amplify a input signal externally input through an input line of the low noise amplifier;a bias unit connected to the input line and configured to set a driving condition of the transistor;impedance matching unit configured to match an impedance of the low noise amplifier;a blocking capacitor connected to the input line and configured to block a direct current of the input signal; anda first diode unit connected to a first end of the transistor and a second end of the transistor, the first diode unit configured to adjust a voltage between the first end of the transistor and the second end of the transistor under a first standard voltage.2. The low noise amplifier with improved absolute maximum rating performance according to claim 1 , wherein the transistor is a field-effect transistor; the first standard voltage is a maximum rating voltage between the first end of the transistor and the second end of the transistor; the first diode unit comprises two diodes arranged back-to-back.3 ...

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Номер записи: 99
16-01-2020 дата публикации

RESONANT RETUNABLE ANTENNA

Номер: US20200021264A1
Автор: Fedosov Dmitriy Vitalyevich
Принадлежит:

The invention relates to the antenna technology used generally for providing a communication in the mines, in particular to the small resonant retunable antennas intended for providing an induction communication too. The technical effect is a possibility to adjust smoothly an operation frequency of the antenna within the wide radio wave range and, as a consequence, a possibility to compensate an effect of the outer objects having a capacity and switch the antenna to the other transceiving frequency channels. 1. Antenna with matching device , the said antenna comprising a matching device in the form of a transformer consisting of a primary and secondary windings; a transmitting vibrator in the form of 2D- or 3D-conducting body , the said vibrator being connected to the secondary winding and located in the magnetic field of the matching transformer , characterized in that , proximal to the secondary winding of the transformer , there are a mobile capacity component coupled galvanically to the transformer in any point and a mechanism for manual or automatic moving the capacity component with respect to the secondary winding and fixing it in the selected position.2. Antenna of claim 1 , characterized in that the vibrator connected to the secondary winding of the transformer is combined with the capacity component and is moved along the axis of the secondary solenoid.3. Antenna of claim 1 , characterized in that the primary and secondary windings are divided into the several sections which are connected via a relay. The present invention relates to the antenna technology and can be used in the small-sized medium wave transceiving techniques for providing a mobile communication and induction communication, and as an individual antenna provided for installing on the stationary and mobile communication objects that is very actual in the mines and pits where the small-sized antennas are required.It is currently known that the dimensions of the efficient modern hectometre ...

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Номер записи: 100