{"title":"Numerical Evaluation of Absorber Reflectivity in an Artificial Waveguide","authors":"H. Pues, Y. Arien, F. Demming-Janssen, J. Dauwen","doi":"10.1109/EMCZUR.2009.4783477","DOIUrl":null,"url":null,"abstract":"The reflectivity of an absorber-lined wall in a shielded enclosure (considered as a metal-backed doubly-periodic absorber array) is calculated by simulating a one-port S-parameter measurement of a single absorber in an artificial waveguide. Compared to real measurements in waveguides or coaxial lines, a much larger frequency range is obtained. By properly taking into account the effect of higher-order modes, a distinction is made between specular and non-specular reflections. The method is applied to two types of hollow pyramidal absorbers to illustrate its usefulness.","PeriodicalId":192851,"journal":{"name":"2009 20th International Zurich Symposium on Electromagnetic Compatibility","volume":"31 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2009-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2009 20th International Zurich Symposium on Electromagnetic Compatibility","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/EMCZUR.2009.4783477","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 4
Abstract
The reflectivity of an absorber-lined wall in a shielded enclosure (considered as a metal-backed doubly-periodic absorber array) is calculated by simulating a one-port S-parameter measurement of a single absorber in an artificial waveguide. Compared to real measurements in waveguides or coaxial lines, a much larger frequency range is obtained. By properly taking into account the effect of higher-order modes, a distinction is made between specular and non-specular reflections. The method is applied to two types of hollow pyramidal absorbers to illustrate its usefulness.
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