公开(公告)号：US06188279B1

公开(公告)日：2001-02-13

申请号：US09433128

申请日：1999-11-03

申请人： Cindy H. C. Yuen ,  Mark D. Adams ,  James A. Fuchs ,  Kirk G. Laursen ,  Steve S. Yang

发明人： Cindy H. C. Yuen ,  Mark D. Adams ,  James A. Fuchs ,  Kirk G. Laursen ,  Steve S. Yang

IPC分类号： H03F126

CPC分类号： H03F1/3252 ,  H03F1/3276

摘要： A broadband linearizer for use with a power amplifier. The broadband linearizer includes a preamplifier, a postamplifier and a broadband linearizer bridge coupled between the preamplifier and postamplifier. The linearizer bridge comprises a power divider for coupling power to linear and nonlinear arms, and a power combiner for combining outputs of the linear and nonlinear arms. The linear arm includes a first equalizer and a delay line, and the nonlinear arm includes a distortion generator and an attenuator. A second equalizer is coupled between the power combiner and the postamplifier. A control circuit controls settings of the preamplifier, the broadband linearizer bridge, and the postamplifier. The control circuit outputs voltage bias and constant current signals to control operation of the broadband linearizer. The broadband linearizer provides for independent, flexible gain and phase control that can mate with different kinds of power amplifiers, such as travelling wave tube amplifiers and solid state power amplifiers having various gain and phase performance.

摘要翻译： 用于功率放大器的宽带线性化电路。 宽带线性化器包括前置放大器，后置放大器和耦合在前置放大器和后置放大器之间的宽带线性化电路桥。 线性化电桥包括用于将功率耦合到线性和非线性臂的功率分配器和用于组合线性和非线性臂的输出的功率组合器。 线性臂包括第一均衡器和延迟线，非线性臂包括失真发生器和衰减器。 功率组合器和后置放大器之间耦合第二均衡器。 控制电路控制前置放大器，宽带线性化电路桥和后置放大器的设置。 控制电路输出电压偏置和恒流信号，以控制宽带线性化电路的工作。 宽带线性化电路提供独立，灵活的增益和相位控制，可以与不同种类的功率放大器匹配，如行波管放大器和具有各种增益和相位性能的固态功率放大器。

公开(公告)号：US5966049A

公开(公告)日：1999-10-12

申请号：US203257

申请日：1998-12-01

申请人： Cindy H. C. Yuen ,  Steve S. Yang ,  Mark D. Adams ,  Kirk G. Laursen

发明人： Cindy H. C. Yuen ,  Steve S. Yang ,  Mark D. Adams ,  Kirk G. Laursen

IPC分类号： H03F1/32 ,  H03F1/42 ,  H03F1/26 ,  H03F3/68

CPC分类号： H03F1/3276 ,  H03F1/3252

摘要： A broadband linearizer for use with a power amplifier. The broadband linearizer includes a broadband linearizer bridge, a preamplifier/attenuator, a post amplifier/attenuator, and a control circuit. The broadband linearizer bridge includes a power divider and a power combiner interconnected by linear and nonlinear arms. The linear arm has a phase shifter, a passive equalizer, and a first delay line that are serially coupled together. The nonlinear arm has a distortion generator, an attenuator and a second delay line that are serially coupled together. The control circuit controls respective settings of the broadband linearizer bridge, preamplifier/attenuator and post amplifier/attenuator. The control circuit provides bias circuitry and sends command and telemetry signals to control operation of the broadband linearizer. The broadband linearizer provides for independent, flexible gain and phase control that can mate with different kinds of power amplifiers having various gain and phase performance.

摘要翻译： 用于功率放大器的宽带线性化电路。 宽带线性化器包括宽带线性化电桥，前置放大器/衰减器，后置放大器/衰减器和控制电路。 宽带线性化电路桥包括功率分配器和通过线性和非线性臂互连的功率组合器。 线性臂具有串联连接在一起的移相器，无源均衡器和第一延迟线。 非线性臂具有串联耦合的失真发生器，衰减器和第二延迟线。 控制电路控制宽带线性化电路桥，前置放大器/衰减器和后置放大器/衰减器的各个设置。 控制电路提供偏置电路并发送命令和遥测信号以控制宽带线性化电路的工作。 宽带线性化电路提供独立，灵活的增益和相位控制，可以与具有各种增益和相位性能的不同种类的功率放大器配合使用。