发明名称 |
High frequency power amplifier and wireless communication module |
摘要 |
The present invention provides a high frequency power amplifier of an open-loop type, which outputs a signal having a level corresponding to an output level required under control of a power supply voltage for each output power FET, based on a control signal for the output level. The high frequency power amplifier is provided with a bias voltage generating circuit which generates a gate bias voltage of each output power FET according to an output voltage of a power control circuit for controlling the power supply voltage for the output power FET, based on the control signal for the output level.
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申请公布号 |
US2003137347(A1) |
申请公布日期 |
2003.07.24 |
申请号 |
US20030337819 |
申请日期 |
2003.01.08 |
申请人 |
HITACHI, LTD. |
发明人 |
ARAI SATOSHI;SHIBUYA TSUYOSHI;SEKIGUCHI HITOSHI;MATSUDAIRA NOBUHIRO;FURUYA TOMIO;MARUYAMA MASASHI;OHYAMA YASUSHI |
分类号 |
H03F1/32;H03F3/213;H03G3/00;H03G3/30;H04B1/04;(IPC1-7):H03G3/20 |
主分类号 |
H03F1/32 |
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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