{"title":"Determination of Optimal Sample Length for Passive Intermodulation Measurements in Microstrip Lines with Non-Contact Connections","authors":"Musashi Shirakawa;Ryunosuke Murofushi;Nobuhiro Kuga;Eiji Hanayama","doi":"10.23919/comex.2024XBL0026","DOIUrl":null,"url":null,"abstract":"In the passive intermodulation (PIM) measurement of microstrip lines using non-contact planar connector, this letter presents a proper sample length for the 3rd-order PIM measurement due to closely frequency-spaced transmission waves. Our experimental study using nickel-plated samples as a distributed PIM source reveals that a spacing between non-contact connectors should be a quarter guided wavelength in order to suppress the effect of non-contact connectors on the PIM measurement results and maximize the observed reverse PIM. We also demonstrate a circuit-network simulation using the harmonic balance method, which agrees well with and validates the experiments.","PeriodicalId":54101,"journal":{"name":"IEICE Communications Express","volume":"13 6","pages":"210-213"},"PeriodicalIF":0.3000,"publicationDate":"2024-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10494929","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEICE Communications Express","FirstCategoryId":"1085","ListUrlMain":"https://ieeexplore.ieee.org/document/10494929/","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
In the passive intermodulation (PIM) measurement of microstrip lines using non-contact planar connector, this letter presents a proper sample length for the 3rd-order PIM measurement due to closely frequency-spaced transmission waves. Our experimental study using nickel-plated samples as a distributed PIM source reveals that a spacing between non-contact connectors should be a quarter guided wavelength in order to suppress the effect of non-contact connectors on the PIM measurement results and maximize the observed reverse PIM. We also demonstrate a circuit-network simulation using the harmonic balance method, which agrees well with and validates the experiments.
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