发明名称 |
AUTOMATIC GAIN CONTROL CIRCUIT AND LOW NOISE AMPLIFYING CIRCUIT |
摘要 |
By connecting an antenna damping circuit (4) and a bypass switch (5) in series and connecting the series circuit and an LNA (3) in parallel, it is possible to inhibit a generation of a signal path for connecting the bypass switch (5) to the LNA (3) in series in an operation of the LNA (3) and to prevent a noise factor of the LNA (3) from being deteriorated due to an on resistance of the bypass switch (5).
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申请公布号 |
US2009096527(A1) |
申请公布日期 |
2009.04.16 |
申请号 |
US20060298370 |
申请日期 |
2006.11.29 |
申请人 |
NIIGAT SEIMITSU CO., LTD. |
发明人 |
ISHIGURO KAZUHISA |
分类号 |
H03G3/30;H03F1/26;H03F3/16 |
主分类号 |
H03G3/30 |
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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