V. V. Radchenko, A. Nosich, J. Daniel, S. Vinogradov
{"title":"Modeling of a slot-excited spherical-circular microstrip antenna","authors":"V. V. Radchenko, A. Nosich, J. Daniel, S. Vinogradov","doi":"10.1109/MMET.2000.888554","DOIUrl":null,"url":null,"abstract":"Conformal printed antennas are frequently used in mobile wireless communications and radar due to their low profile and light weight. In this paper, the problem of modeling of a spherical-disk conformal printed antenna is considered assuming excitation by a slot. The slot is modeled by a tangential magnetic dipole located at the surface of the metal sphere covered with dielectric. Previously, similar problems have been analyzed by the method-of-moments. However, the accuracy of these numerical approximations suffer if narrow resonances are present. We propose an exact mathematical method based on the analytical inversion of the free-space static problem for a spherical disk. This method is very stable and gives fast numerical solutions.","PeriodicalId":344401,"journal":{"name":"Conference Proceedings 2000 International Conference on Mathematical Methods in Electromagnetic Theory (Cat. No.00EX413)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2000-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Conference Proceedings 2000 International Conference on Mathematical Methods in Electromagnetic Theory (Cat. No.00EX413)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/MMET.2000.888554","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Conformal printed antennas are frequently used in mobile wireless communications and radar due to their low profile and light weight. In this paper, the problem of modeling of a spherical-disk conformal printed antenna is considered assuming excitation by a slot. The slot is modeled by a tangential magnetic dipole located at the surface of the metal sphere covered with dielectric. Previously, similar problems have been analyzed by the method-of-moments. However, the accuracy of these numerical approximations suffer if narrow resonances are present. We propose an exact mathematical method based on the analytical inversion of the free-space static problem for a spherical disk. This method is very stable and gives fast numerical solutions.