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公开(公告)号：US20220182015A1
公开(公告)日：2022-06-09
申请号：US17652536
申请日：2022-02-25
摘要： This application discloses a variable capacitor, a reflection-type phase shifter, and a semiconductor device, which relate to the technical field of electronics, so as to resolve the problem that a capacitance value of a variable capacitor is sensitive to changes in PVT. The variable capacitor includes: a first comb structure and a first set of fingers, where the first comb structure includes a plurality of comb teeth, the first set of fingers includes at least one finger, and the finger in the first set of fingers is disposed between at least two comb teeth of the first comb structure, without electrical contact; a second comb structure and a second set of fingers, where the second comb structure includes a plurality of comb teeth.
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公开(公告)号：US09065406B2
公开(公告)日：2015-06-23
申请号：US14141128
申请日：2013-12-26
发明人： Zhi Zhang , Xinrong Hu , Jin Rao , Yongli Wang , Xiaosheng Zhu , Rong Peng
CPC分类号： H03G1/0023 , H03G3/3036
摘要： A continuous variable gain amplifier includes an attenuator network, a boost network, a first amplifying network, and a second amplifying network, where the attenuator network generates first differential output signals according to an input signal and sends the first differential output signals to the first amplifying network and the second amplifying network; the first amplifying network and the second amplifying network receive one output of the first differential output signals each, and generate a first final output signal and a second final output signal respectively according to an externally input control voltage; and the boost network receives the first final output signal and the second final output signal, generates second differential output signals, and sends a first output and a second output of the second differential output signals to the first amplifying network and the second amplifying network, respectively.
摘要翻译： 连续可变增益放大器包括衰减器网络，升压网络，第一放大网络和第二放大网络，其中衰减器网络根据输入信号产生第一差分输出信号，并将第一差分输出信号发送到第一放大网络 网络和第二放大网络; 第一放大网络和第二放大网络分别接收第一差分输出信号的一个输出，并根据外部输入的控制电压产生第一最终输出信号和第二最终输出信号; 并且升压网络接收第一最终输出信号和第二最终输出信号，产生第二差分输出信号，并且将第二差分输出信号的第一输出和第二输出分别发送到第一放大网络和第二放大网络 。
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公开(公告)号：US11431311B2
公开(公告)日：2022-08-30
申请号：US17215447
申请日：2021-03-29
发明人： Cheng Yuan , Rong Peng , Qingyou Zheng
摘要： A variable gain amplifier and an electronic apparatus. The variable gain amplifier includes a first transconductance stage circuit and a second transconductance stage circuit, where the first transconductance stage circuit includes a first amplifying circuit and a second amplifying circuit, the second transconductance stage circuit includes a third amplifying circuit and a fourth amplifying circuit, the first amplifying circuit and the fourth amplifying circuit form a differential input pair, and the second amplifying circuit and the third amplifying circuit form a differential input pair, and where each amplifying circuit of the first amplifying circuit, the second amplifying circuit, the third amplifying circuit, and the fourth amplifying circuit includes a plurality of parallel transistors, and bias control of the plurality of transistors is independent of each other.
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公开(公告)号：US12057818B2
公开(公告)日：2024-08-06
申请号：US17652536
申请日：2022-02-25
CPC分类号： H03H7/20 , H01P1/15 , H01P1/18 , H03C7/025 , H03C2200/0008
摘要： This application discloses a variable capacitor, a reflection-type phase shifter, and a semiconductor device, which relate to the technical field of electronics, so as to resolve the problem that a capacitance value of a variable capacitor is sensitive to changes in PVT. The variable capacitor includes: a first comb structure and a first set of fingers, where the first comb structure includes a plurality of comb teeth, the first set of fingers includes at least one finger, and the finger in the first set of fingers is disposed between at least two comb teeth of the first comb structure, without electrical contact; a second comb structure and a second set of fingers, where the second comb structure includes a plurality of comb teeth.
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公开(公告)号：US11984915B2
公开(公告)日：2024-05-14
申请号：US17242525
申请日：2021-04-28
CPC分类号： H04B1/036
摘要： Example temperature compensation circuits and a phased array apparatus are described. One example temperature compensation circuit is applied to a signal processing path. The example temperature compensation circuit includes a temperature detection circuit, a temperature conversion circuit, and a passive variable attenuator. The passive variable attenuator is configured to be connected in series in the signal processing path. The temperature detection circuit is configured to generate a temperature signal and a reference signal, and output the temperature signal and the reference signal to the temperature conversion circuit. The temperature signal monotonically changes with a temperature of the signal processing path. The temperature conversion circuit is configured to generate a control signal based on the temperature signal and the reference signal. The passive variable attenuator is configured to adjust, under control of the control signal, an attenuation value of a signal processed by the signal processing path.
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公开(公告)号：US20210218379A1
公开(公告)日：2021-07-15
申请号：US17215447
申请日：2021-03-29
发明人： Cheng Yuan , Rong Peng , Qingyou Zheng
IPC分类号： H03G3/30 , H03F3/45 , H04B7/0413 , H04B1/00
摘要： A variable gain amplifier and an electronic apparatus. The variable gain amplifier includes a first transconductance stage circuit and a second transconductance stage circuit, where the first transconductance stage circuit includes a first amplifying circuit and a second amplifying circuit, the second transconductance stage circuit includes a third amplifying circuit and a fourth amplifying circuit, the first amplifying circuit and the fourth amplifying circuit form a differential input pair, and the second amplifying circuit and the third amplifying circuit form a differential input pair, and where each amplifying circuit of the first amplifying circuit, the second amplifying circuit, the third amplifying circuit, and the fourth amplifying circuit includes a plurality of parallel transistors, and bias control of the plurality of transistors is independent of each other.
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