High-linearity variable gain amplifier and electronic apparatus

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11431311
APP PUB NO 20210218379A1
SERIAL NO

17215447

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Abstract

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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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Patent Owner(s)

  • HUAWEI TECHNOLOGIES CO., LTD.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Peng, Rong Shanghai, CN 19 93
Yuan, Cheng Shanghai, CN 8 9
Zheng, Qingyou Shanghai, CN 1 0

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