一种基于双工器的谐波有源负载牵引测试系统  

Harmonic Active Load Pull Measurement System Based on Diplexer

作　　者：郭庭铭 苏江涛[1] 刘军[1] 王飞 GUO Tingming;SU Jiangtao;LIU Jun;WANG Fei(Key Laboratory of RF Circuits and Systems,Ministry of Education,Hangzhou Dianzi University,Hangzhou Zhejiang 310018,China)

机构地区：[1]杭州电子科技大学射频电路与系统教育部重点实验室,浙江杭州310018

出　　处：《杭州电子科技大学学报（自然科学版）》2020年第6期6-12,共7页Journal of Hangzhou Dianzi University：Natural Sciences

基　　金：国家自然科学基金资助项目(61827806,61871161);浙江省自然科学基金资助项目(LZ17F010001)。

摘　　要：大信号有源负载牵引测试系统是评估微波毫米波功率器件的非线性特性的重要手段。介绍谐波有源负载牵引测试的基本原理及其测试系统的基本结构,并设计一种基于低损耗同向双工器的谐波有源负载牵引系统。在不使用低通滤波器的情况下,对基波和谐波信号进行分离,简化谐波有源负载牵引在片测试系统,使测试系统传输路径损耗减小。实验验证表明:基波与谐波的隔离度约为25 dB,能对器件的非线性特性进行精确测试,器件的最大效率误差值在0.05%以内。The large signal active load-pull measurement system is an important means to evaluate the nonlinear characteristics of microwave millimeter wave power devices.This paper introduces the basic principle of harmonic active load-pull measurement and the basic structure of the measurement system,and designs a harmonic active load-pull measurement system based on a low-loss isotropic duplexer.The fundamental wave and the harmonic signal are separated without using a low-pass filter,simplifying the on-wafer harmonic active load-pull measurement system,and reducing the transmission path loss of the measurement system.Experimental verification shows that the isolation between the fundamental wave and the harmonic is about 25 dB,which can accurately measure the nonlinear characteristics of the device,and the maximum efficiency error value of the device is within 0.05%.

关 键 词：同向双工器 有源负载牵引测试 射频功率器件 在片测试 

分 类 号：TN432[电子电信—微电子学与固体电子学]