V. L. Parvathi, Anil Rajput, R. B. Raut, Biswajeet Mukherjee
{"title":"Wideband Circularly Polarized Conformal Dielectric Resonator Antenna for High Gain Applications","authors":"V. L. Parvathi, Anil Rajput, R. B. Raut, Biswajeet Mukherjee","doi":"10.1002/mop.70120","DOIUrl":null,"url":null,"abstract":"<div>\n \n <p>A compact and circularly polarized convex dielectric resonator antenna (CDRA) is investigated in this communication. Eigenmode method is used to analyze electromagnetic field propagation and resonant frequency of the antenna. Benefits of conformal structure over a planar surface are mentioned. A pair of vertical slots are introduced on the ground plane to produce orthogonal degenerate modes. Finally, the proposed curved DRA provides a fractional impedance bandwidth of 22%, axial ratio bandwidth of 11.27% and a stable gain of more than 5 dBi over the desired passband with a peak gain of 7 dBi. To validate the simulated results, a prototype is fabricated and measured.</p>\n </div>","PeriodicalId":18562,"journal":{"name":"Microwave and Optical Technology Letters","volume":"67 1","pages":""},"PeriodicalIF":1.2000,"publicationDate":"2025-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Microwave and Optical Technology Letters","FirstCategoryId":"5","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/mop.70120","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
A compact and circularly polarized convex dielectric resonator antenna (CDRA) is investigated in this communication. Eigenmode method is used to analyze electromagnetic field propagation and resonant frequency of the antenna. Benefits of conformal structure over a planar surface are mentioned. A pair of vertical slots are introduced on the ground plane to produce orthogonal degenerate modes. Finally, the proposed curved DRA provides a fractional impedance bandwidth of 22%, axial ratio bandwidth of 11.27% and a stable gain of more than 5 dBi over the desired passband with a peak gain of 7 dBi. To validate the simulated results, a prototype is fabricated and measured.
期刊介绍：
Microwave and Optical Technology Letters provides quick publication (3 to 6 month turnaround) of the most recent findings and achievements in high frequency technology, from RF to optical spectrum. The journal publishes original short papers and letters on theoretical, applied, and system results in the following areas.
- RF, Microwave, and Millimeter Waves
- Antennas and Propagation
- Submillimeter-Wave and Infrared Technology
- Optical Engineering
All papers are subject to peer review before publication
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