发明授权
- 专利标题： Power amplifier circuit for multi-frequencies and multi-modes and method for operating the same
- 专利标题（中）： 功率放大电路用于多频多模和方法操作
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申请号： US12023002申请日： 2008-01-30
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公开(公告)号： US07876159B2公开(公告)日： 2011-01-25
- 发明人: Shih-Ming Wang , Cheng-Chung Chen , Yu-Cheng Hsu , Chung-Chi Lai
- 申请人： Shih-Ming Wang , Cheng-Chung Chen , Yu-Cheng Hsu , Chung-Chi Lai
- 申请人地址： TW Hsinchu
- 专利权人： Industrial Technology Research Institute
- 当前专利权人： Industrial Technology Research Institute
- 当前专利权人地址： TW Hsinchu
- 代理机构： Jianq Chyun IP Office
- 优先权： TW96130330A 20070816
- 主分类号： H03F3/68
- IPC分类号： H03F3/68
摘要：
A multi-frequency and multi-mode power amplifier is provided. The amplifier has a carrier power amplifier and a peaking power amplifier. The carrier power amplifier receives a first signal and outputs a first amplified signal, in which a first transistor size adjusting unit is included to adjust an equivalent transistor size based on a mode indication signal. The peaking power amplifier receives a second signal and outputs a second amplified signal, in which a second transistor size adjusting unit is included to adjust an equivalent transistor size based on the mode indication signal.
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