发明名称 |
Broadband variable gain amplifier with high linearity and variable gain characteristic |
摘要 |
A broadband variable gain amplifier with improved linearity and gain characteristic is provided. According to the present invention, the broadband variable gain amplifier comprises: an amplification unit for amplifying an input signal applied to an input terminal and outputting an amplified signal to an output terminal; and a gain control unit which is connected between the input and output terminals, and for controlling gain of said amplification unit, wherein said gain control unit comprises: a variable resistance unit whose resistance value is varied according to a control signal; and a broadband matching unit for proving an optimal impedance characteristic to the input terminal said amplification unit in a broad band, where in said variable gain resistance unit and said broadband matching unit is connected in parallel.
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申请公布号 |
US2003214357(A1) |
申请公布日期 |
2003.11.20 |
申请号 |
US20030438047 |
申请日期 |
2003.05.15 |
申请人 |
INTEGRANT TECHNOLOGIES INC. |
发明人 |
CHO YOUNGHO;KIM BO-EUN;KIM BONKEE |
分类号 |
H03G1/00;(IPC1-7):H03G3/30 |
主分类号 |
H03G1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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