{"title":"Reconstruction of permittivity profiles in cylindrical objects illuminated by higher order modes","authors":"Mohammad Jaleel Akhtar, Abbas Omar","doi":"10.1109/MWSYM.2000.863545","DOIUrl":null,"url":null,"abstract":"An improved and accurate technique for the reconstruction of radially dependent permittivity profiles in cylindrical objects illuminated by higher order TE- and TM- cylindrical modes is presented. The technique is based on a general kind of integral transform of the measured frequency dependent reflection data and the recently suggested renormalization technique to obtain a unique solution of the corresponding inverse problem. A dummy time variable has been introduced to improve the overall reconstruction process. This variable has then been transformed into the spatial one via a simple integration routine. A number of reconstruction examples have been considered and a very good agreement has been found between the original and the reconstructed profiles even for very high values of permittivity.","PeriodicalId":149404,"journal":{"name":"2000 IEEE MTT-S International Microwave Symposium Digest (Cat. No.00CH37017)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2000-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2000 IEEE MTT-S International Microwave Symposium Digest (Cat. No.00CH37017)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/MWSYM.2000.863545","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
An improved and accurate technique for the reconstruction of radially dependent permittivity profiles in cylindrical objects illuminated by higher order TE- and TM- cylindrical modes is presented. The technique is based on a general kind of integral transform of the measured frequency dependent reflection data and the recently suggested renormalization technique to obtain a unique solution of the corresponding inverse problem. A dummy time variable has been introduced to improve the overall reconstruction process. This variable has then been transformed into the spatial one via a simple integration routine. A number of reconstruction examples have been considered and a very good agreement has been found between the original and the reconstructed profiles even for very high values of permittivity.
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