20W集群通信功率放大器设计  

Design of 20W Power-Amplifier for Trunked Radio Communication

作　　者：庄东曙 陈文华 张岭 宗明 

机构地区：[1]南京熊猫汉达科技有限公司开发部

出　　处：《通信与广播电视》2009年第2期1-8,共8页Communication & Audio and Video

摘　　要：为了提高集群通信性能，扩大集群调度的网络覆盖，设计出应用于移动式或固定式的集群信道机功率放大器。该功放工作在851～866MHz波段，典型增益（Gain）29dB，采用功率回退、温度补偿、增益调节、功率和VSWR检测等技术，具有增益平坦度小，增益调节便捷、稳定性高等特点。In order to improve the performance and network coverage of trunked radio communication, A power-amplifier for trunked radio is designed for moving and fixing trunked radio communication. The frequency range of the amplifier is 851 - 866MHz and the typical gain is 20dB. The amplifier adopts technologies including power back, temperature compensation, gain adjustment, power and VSWR detection and so on, which has the characteristic of low gain waving, high linearity, convenience of gain adjustment and high stability etc.

关 键 词：集群功率放大器 增益 电路匹配 微带耦合器 谐波滤波器 三阶互调 

分 类 号：TN722.75[电子电信—电路与系统] TN722