微波功率放大器AM-PM转移系数测试方法研究  

Study on Test of AM-PM Transfer Coefficient of Spatial Microwave Amplifier

作　　者：李新雷[1] 张进仓 秦臻 高妍[1] 林卓 张琳 LI Xinlei;ZHANG Jincang;QIN Zhen;GAO Yan;LIN Zhuo;ZHANG Lin(China Academy of Space Technology(Xi’an ),Xi’an 710000,China)

机构地区：[1]中国空间技术研究院西安分院,西安710000

出　　处：《空间电子技术》2019年第2期1-4,共4页Space Electronic Technology

摘　　要：针对星载微波功率放大器AM-PM转移系数指标缺乏考核方法的问题,文章根据多载波非线性工作原理,通过输入放大器双载波信号、调整输入信号幅度变化、分析输出信号相位变化情况的测试方法,设计了通过矢网进行测试的方案。根据方案所搭建的测试系统,完成了放大器的测试验证,测试精度可达0.1(deg/dB)。研究结果表明,文章给出的这种AM-PM转移系数测试方法,是有效、可行、实用的,为全面评估国产化星载微波功率放大器提供了具体的测试方法。In order to solve the problem that the spaceborne microwave power amplifier AM-PM transfer coefficient index lacks the assessment method,this paper is base on the principle of multicarrier nonlinear oparation.By Adjusting the amplitude of the iuput Dual-carrier signal,analysis of the change of the output signal phase,based on this methods it designed the scheme for testing through the vector network analyzer.According to the test system built by the scheme,the test verification of the amplifier is completed .Test accuracy up to 0.1(deg/dB). The research sesults show that the AM-PM transfer coefficient test method given in the paper is effective,feasible and practical, and it provides a specific test method for comprehensive evaluation of localized spaceborne microwave power amplifiers.

关 键 词：放大器 AM-PM 转移系数 测试 

分 类 号：V474[航空宇航科学与技术—飞行器设计]