{"title":"Compact Broadband Antennas with Series and Parallel Resonances","authors":"K. Noguchi, Fumiya Osaki, Taichi Hamabe","doi":"10.1109/APWC52648.2021.9539615","DOIUrl":null,"url":null,"abstract":"Multi-mode excitation with complementary resonance for radiation resonance is useful for broadbanding of electrically small antennas. Bandwidth of a small antenna with series resonance such as short dipole, small helical and meander line antennas can be expanded by using no-radiation parallel resonance. Another antenna type with parallel resonance like a microstrip antenna (MSA) is also able to get wideband characteristics using series resonance. We have studied compact broadband small antennas with multi-mode excitation and evaluated them in the view point of practical use. In the paper, we will show evaluation results of a miniaturizing factor, product of bandwidth and radiation efficiency ( Bη product), for practical inverted-L antenna (ILA) and MSA.","PeriodicalId":253455,"journal":{"name":"2021 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)","volume":"17 11 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2021-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2021 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/APWC52648.2021.9539615","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
Multi-mode excitation with complementary resonance for radiation resonance is useful for broadbanding of electrically small antennas. Bandwidth of a small antenna with series resonance such as short dipole, small helical and meander line antennas can be expanded by using no-radiation parallel resonance. Another antenna type with parallel resonance like a microstrip antenna (MSA) is also able to get wideband characteristics using series resonance. We have studied compact broadband small antennas with multi-mode excitation and evaluated them in the view point of practical use. In the paper, we will show evaluation results of a miniaturizing factor, product of bandwidth and radiation efficiency ( Bη product), for practical inverted-L antenna (ILA) and MSA.