发明授权
- 专利标题： Multi mode power amplifier and communication unit
- 专利标题（中）： 多模功率放大器和通信单元
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申请号： US849355申请日： 1997-10-08
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公开(公告)号： US6111459A公开(公告)日： 2000-08-29
- 发明人: Masaaki Nishijima , Taketo Kunihisa , Osamu Ishikawa
- 申请人： Masaaki Nishijima , Taketo Kunihisa , Osamu Ishikawa
- 申请人地址： JPX Osaka
- 专利权人： Matsushita Electric Industrial Co., Ltd.
- 当前专利权人： Matsushita Electric Industrial Co., Ltd.
- 当前专利权人地址： JPX Osaka
- 优先权： JPX7-253204 19950929; JPX8-004548 19960116
- 主分类号： H03F1/14
- IPC分类号： H03F1/14 ; H03F3/60 ; H03F3/68 ; H03F3/72 ; H03G3/30
摘要：
A power amplifier including: a first amplifier PA2 having an input terminal and an output terminal; a passive circuit PC3 having an input terminal and an output terminal; and a first switch SW2 having a single-pole terminal and two multi-throw terminals, one of the multi-throw terminals of the first switch SW2 being connected to the input terminal of the first amplifier PA2 and the other of the multi-throw terminals of the first switch SW2 being connected to the input terminal of the passive circuit PC3. This makes it possible to provide a power amplifier and a communication unit which can be operated with different frequencies, output powers or modulation types.
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