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41.发明申请公开(公告)号：US20080032634A1
公开(公告)日：2008-02-07
申请号：US11771130
申请日：2007-06-29
CPC分类号： H03G3/004 , H03F1/34 , H03F3/19 , H03F3/24 , H04B2001/0433
摘要： A system for controlling the power output of a power amplifier includes a power amplifier through which a transmit signal having an amplitude-modulated (AM) component and a phase-modulated (PM) component is passed and amplified, the power amplifier comprising a forward path, a feedback signal comprising a portion of the output of the power amplifier, a first control loop configured to receive the feedback signal and configured to apply an amplitude modulated (AM) signal to the power amplifier and configured to control the gain of the power amplifier, a second control loop configured to receive the feedback signal and configured to correct for offsets in the forward path and to linearize the first control loop; and a third control loop configured to receive the feedback signal and configured to control the phase of the PM component of the transmit signal.
摘要翻译： 用于控制功率放大器的功率输出的系统包括：功率放大器，具有幅度调制（AM）分量和相位调制（PM）分量的发射信号通过该功率放大器通过并放大，所述功率放大器包括前向路径 ，包括功率放大器的输出的一部分的反馈信号;第一控制回路，被配置为接收反馈信号并被配置为将幅度调制（AM）信号施加到功率放大器并且被配置为控制功率放大器的增益 第二控制回路，被配置为接收所述反馈信号并被配置为校正所述正向通路中的偏移并且使所述第一控制回路线性化; 以及第三控制回路，被配置为接收所述反馈信号并被配置为控制所述发射信号的PM分量的相位。
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公开(公告)号：US06930556B2
公开(公告)日：2005-08-16
申请号：US10397475
申请日：2003-03-26
IPC分类号： H03F3/60
CPC分类号： H03F3/604
摘要： A system for amplifying a signal is provided. The system includes a wave guide and an active loop amplifier disposed in the wave guide. The active loop amplifier receives the signal and generates a magnetic field in response to the signal, such as one that couples to the propagating mode of the wave guide.
摘要翻译： 提供一种放大信号的系统。 该系统包括布置在波导中的波导和主动回路放大器。 有源环路放大器接收该信号并且响应于耦合到波导的传播模式的信号产生磁场。
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