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公开(公告)号：US20220368294A1
公开(公告)日：2022-11-17
申请号：US17564734
申请日：2021-12-29
申请人： Qorvo US, Inc.
发明人： Nadim Khlat
摘要： A power amplifier circuit supporting phase correction in a radio frequency (RF) signal is disclosed. The power amplifier circuit includes a power amplifier configured to amplify an RF signal based on a modulated voltage. The power amplifier circuit also includes a phase correction circuit configured to generate a phase correction signal based on the modulated voltage to thereby cause a phase change in the RF signal before the RF signal is amplified by the power amplifier. As a result, the modulated voltage and the time-variant power envelope can be better aligned in time and/or phase at the power amplifier circuit to thereby improve efficiency and linearity of the power amplifier circuit.
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公开(公告)号：US20220311422A1
公开(公告)日：2022-09-29
申请号：US17552732
申请日：2021-12-16
发明人： Zongmin LIU , Zhiliang WANG , Wei LI , Xichao FAN , Junwei GUO , Feng QU , Biqi LI
IPC分类号： H03H11/16
摘要： The present disclosure provides a phase shifting device, a driving method thereof, and an antenna. The phase shifting device of the present disclosure includes: data lines, scan lines and phase shifting units. Each phase shifting unit includes: a switch sub-circuit and a phase shifter. Control terminals of the switch sub-circuits in a same row are coupled to a same scan line, first terminals of the switch sub-circuits in a same column are coupled to a same data line, and a second terminal of each switch sub-circuit is coupled to a phase shifter included in the phase shifting unit to which the switch sub-circuit belongs. Each switch sub-circuit is configured to transmit, in response to a switch control signal provided by the scan line, a data voltage signal provided by the data line to the phase shifter to drive the phase shifter.
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公开(公告)号：US20220200577A1
公开(公告)日：2022-06-23
申请号：US17455086
申请日：2021-11-16
发明人： Mostafa Azizi , Hassan Sarbishaei
摘要： Apparatus and methods for phase shifting are provided herein. In certain embodiments, a phase shifter includes a first port, a first controllable reflective load, a second port, a second controllable reflective load, and a pair of coupled lines that are electromagnetically coupled to one another. The pair of coupled lines includes a first conductive line between the first port and the first controllable reflective load and a second conductive line between the second controllable reflective load and the second port. At least one of the first controllable reflective load or the second controllable reflective load includes a switched transmission line load.
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公开(公告)号：US11309870B2
公开(公告)日：2022-04-19
申请号：US16945438
申请日：2020-07-31
发明人： Jongchang Kang , Ara Kurdoghlian , Mehran Mokhtari , Igal Bilik
摘要： The present application relates to a method and apparatus for implementing a radar array including a gate bias source for providing a first variable voltage, a back gate well control for providing a second variable voltage, and a field effect transistor having a drain, a source, a gate and a back gate well control, the field effect transistor being further configured to couple an alternating current radar signal between the drain and the source and to adjust a phase of the alternating current radar in response to first variable voltage applied to the gate and the second variable voltage applied to the back gate well control.
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公开(公告)号：US20210305969A1
公开(公告)日：2021-09-30
申请号：US17204290
申请日：2021-03-17
申请人： NXP USA, INC.
发明人： Dominique Delbecq , Julien Orlando
摘要： A phase rotator control circuit is provided. The phase rotator control circuit is coupled to a phase rotator core and includes a first set of transistors coupled to receive digital control signals. The first set of transistors is coupled to a second set of transistors configured and arranged to form a filtered current mirror. An output of the filtered current mirror is coupled to provide an analog phase control signal to the phase rotator core.
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106.发明申请公开(公告)号：US20210217900A1
公开(公告)日：2021-07-15
申请号：US17215716
申请日：2021-03-29
发明人： Yufeng WANG , Yuantao ZHOU , Wei WAN , Jiang QIN
IPC分类号： H01L29/868 , H01L29/06 , H03H11/16 , H01Q3/36
摘要： This application provides a semiconductor switch device and a preparation method thereof, and a solid-state phase shifter. The semiconductor switch device includes a second semiconductor layer, a first intrinsic layer, a first semiconductor layer, a second intrinsic layer, and a third semiconductor layer that are stacked in a sandwich structure. The first intrinsic layer is located between the second semiconductor layer and the first semiconductor layer, and the first intrinsic layer, the second semiconductor layer, and the first semiconductor layer form a first PIN diode. The second intrinsic layer is located between the third semiconductor layer and the first semiconductor layer, and the second intrinsic layer, the third semiconductor layer, and the first semiconductor layer form a second PIN diode. The first PIN diode and the second PIN diode are axisymmetrically disposed.
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公开(公告)号：US20210203307A1
公开(公告)日：2021-07-01
申请号：US16729282
申请日：2019-12-27
发明人： Zuo-Min TSAI
摘要： This invention discloses a power divider, a radio frequency transceiver and a multi-stage power divider, the power divider comprises a variable gain amplifier, a power dividing circuit, a power detection circuit and a comparison circuit. The variable gain amplifier comprises a first input terminal, a control terminal and a first output terminal, the first input terminal is configured to receive a first local oscillation signal, and the first output terminal outputs a variable output signal to the power dividing circuit. The power dividing circuit outputs a second local oscillation signal to a next stage power divider and outputs a third local oscillation signal to an up/down converter. The power detection circuit outputs a detection voltage. The comparison circuit receives a reference voltage and the detection voltage and compares the reference voltage with the detection voltage and outputs a bias voltage to the power terminal based on a comparison result.
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公开(公告)号：US10686408B2
公开(公告)日：2020-06-16
申请号：US16048541
申请日：2018-07-30
发明人： Xiaochuan Jiang
IPC分类号： H03F3/68 , H03F1/02 , H03F3/193 , H01P5/12 , H03H11/16 , H04B1/04 , H03F1/56 , H03F3/24 , H03F3/60 , H03F3/195
摘要： The present invention relates to a four-way Doherty amplifier. The invention further relates to a mobile telecommunications base station.The invention proposes a new Doherty combiner topology that allows peak efficiencies to be reached at deeper back-off levels than conventional Doherty combiners.
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公开(公告)号：US20200144993A1
公开(公告)日：2020-05-07
申请号：US16178303
申请日：2018-11-01
申请人： ANALOG DEVICES, INC.
发明人： Prabir Kumar Saha
摘要： The signal strength of a vector modulator based phase shifter can be increased enabling signals to be received or transmitted over larger distances than existing phase shifters by applying multiple weights to components of a signal. An input signal can be divided into orthogonal components that can be weighted and combined to generate an intermediate signal. A second intermediate signal can be generated by applying complementary weights to the orthogonal component signal. The two intermediate signals can be combined to obtain the phase shifted signal. By combining complementary weighted component signals, a phase shifted signal with improved signal to noise ratio and greater signal strength can be generated.
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110.发明授权公开(公告)号：US10396780B2
公开(公告)日：2019-08-27
申请号：US16058907
申请日：2018-08-08
申请人： pSemi Corporation
发明人： John Birkbeck
摘要： Designing phase shifters having small insertion loss and footprint for mm-wave applications is challenging. The disclosed methods and devices provide solutions to overcome such challenge. Devices based on limited ground coplanar waveguide structure are also disclosed wherein the 180° phase shift is created using through and changeover mm-wave switches.
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