{"title":"An Alternative N-Port Characteristic-Mode Formulation for Lossy Structures","authors":"Hongwei Ren;Buyun Wang;Juan Chen;Sen Yan","doi":"10.1109/LAWP.2024.3509460","DOIUrl":null,"url":null,"abstract":"In this letter, a novel <italic>N</i>-port characteristic mode (CM) formulation is proposed. By developing the weighting matrix appropriately and solving the proposed generalized eigenvalue equation, the obtained eigenvalues possess significant physical interpretation. Most importantly, the contributions of the radiated, dissipated, and reactive powers can be separated by the obtained eigenvalues. Numerical results of several antennas in lossy environments validate that the proposed <italic>N</i>-port CM formulation not only reveals the resonant CMs within the considered frequency band but also further identifies the modal radiation efficiency of each CM.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 3","pages":"592-596"},"PeriodicalIF":3.7000,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Antennas and Wireless Propagation Letters","FirstCategoryId":"94","ListUrlMain":"https://ieeexplore.ieee.org/document/10772233/","RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
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Abstract
In this letter, a novel N-port characteristic mode (CM) formulation is proposed. By developing the weighting matrix appropriately and solving the proposed generalized eigenvalue equation, the obtained eigenvalues possess significant physical interpretation. Most importantly, the contributions of the radiated, dissipated, and reactive powers can be separated by the obtained eigenvalues. Numerical results of several antennas in lossy environments validate that the proposed N-port CM formulation not only reveals the resonant CMs within the considered frequency band but also further identifies the modal radiation efficiency of each CM.
期刊介绍：
IEEE Antennas and Wireless Propagation Letters (AWP Letters) is devoted to the rapid electronic publication of short manuscripts in the technical areas of Antennas and Wireless Propagation. These are areas of competence for the IEEE Antennas and Propagation Society (AP-S). AWPL aims to be one of the "fastest" journals among IEEE publications. This means that for papers that are eventually accepted, it is intended that an author may expect his or her paper to appear in IEEE Xplore, on average, around two months after submission.
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