Passive Intermodulation Measurement:Challenges and Solutions

作     者：Zhanghua Cai Lie Liu Francesco de Paulis Yihong Qi Zhanghua Cai;Lie Liu;Francesco de Paulis;Yihong Qi

作者机构：General Test Systems Inc.Shenzhen 518000China College of Electrical and Information EngineeringHunan UniversityChangsha 410082China UAq EMC LaboratoryDepartment of Industrial and Information Engineering and EconomicsUniversity of L’AquilaL’Aquila 64100Italy 

出 版 物：《Engineering》 (工程（英文）)

年 卷 期：2022年第8卷第7期

页      面：181-191页

核心收录：

学科分类：080904[工学-电磁场与微波技术] 0810[工学-信息与通信工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080402[工学-测试计量技术及仪器] 0804[工学-仪器科学与技术] 081001[工学-通信与信息系统] 

主　　题：Passive intermodulation(PIM) PIM source location Anechoic chamber 

摘      要：In modern wireless communication systems,the signal-to-noise ratio(SNR)is one of the most important performance *** the other radio frequency(RF)performance of the components is well designed,passive intermodulation(PIM)interference may become an important factor limiting the system’s *** it is a base station,an indoor distributed antenna system,or a satellite system,there are stringent PIM level requirements to minimize interference and enhance network capacity in multicarrier *** for systems of high power and wide bandwidth such as 5G wireless communication,PIM interference is even more *** to the complexity and uncertainty of PIM,measurement is the most important means to study and evaluate the PIM performance of wireless communication *** this review,the current main PIM measurement methods recommended by International Electrotechnical Commission(IEC)and other standard organizations are introduced,and several key challenges in PIM measurement and their solutions(including the design of PIM tester,the location of the PIM sources,the design of compact PIM anechoic chambers,and the evaluation methods of PIM anechoic chambers)are *** challenges are of great significance to solve PIM problems that may arise during device characterization and verification in real wireless communication systems.