发明申请
- 专利标题： High frequency power amplifier, transmitter and mobile communication terminal using the power amplifier
- 专利标题（中）： 高频功率放大器，发射器和移动通信终端使用功率放大器
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申请号： US11430172申请日： 2006-05-09
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公开(公告)号： US20060267688A1公开(公告)日： 2006-11-30
- 发明人: Tomonori Tanoue , Hidetoshi Matsumoto
- 申请人： Tomonori Tanoue , Hidetoshi Matsumoto
- 专利权人： Renesas Technology Corp.
- 当前专利权人： Renesas Technology Corp.
- 优先权： JP2005-138142 20050511
- 主分类号： H03G3/00
- IPC分类号： H03G3/00
摘要：
A high frequency power amplifier maintains an excellent linearity regardless of a fluctuation of a load impedance and is downsized. The high frequency power amplifier detects an AC voltage amplitude at an output terminal of a final amplification stage transistor, and suppresses an input signal amplitude of a power amplifier when the voltage amplitude exceeds a predetermined threshold value.