发明申请
- 专利标题： High efficiency linear amplifier employing dynamically controlled back off
- 专利标题（中）： 采用动态控制回退的高效线性放大器
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申请号： US11081384申请日： 2005-03-16
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公开(公告)号： US20050242875A1公开(公告)日： 2005-11-03
- 发明人: Mark Gurvich , Ahmad Khanifar , Nikolai Maslennikov , Alexander Rabinovich
- 申请人： Mark Gurvich , Ahmad Khanifar , Nikolai Maslennikov , Alexander Rabinovich
- 主分类号： H03F1/02
- IPC分类号： H03F1/02 ; H03F1/32 ; H03G3/20 ; H03G3/30
摘要：
A high efficiency radio frequency (RF) power amplifier having dynamically controlled back off is disclosed. The RF input voltage is sampled by an adaptive analog signal processing circuit. The adaptive analog signal processing circuit controls the supply voltage to RF amplifier devices, such as LDMOS devices, which varies the efficiency or back off of the power amplifier. The variable supply voltage in turn varies peak power of the amplifier.
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