{"title":"一种改善微带天线圆极化特性的新设计方法","authors":"B. P. Kumar, C. Kumar, D. Guha","doi":"10.1109/INCAP.2018.8770932","DOIUrl":null,"url":null,"abstract":"Designing a circularly polarized (CP) microstrip patch on a thick substrate is a bit tricky. It is a challenge to achieve the overlap of the required impedance matching as well as axial ratio (AR) lower than 3 dB over a common band of frequencies. In this work, a new design approach has been presented. Some strategic engineering in the form of a pair of metallic stubs for a circular patch has been adopted. This provides a flexibility of varying the frequency corresponding to the best AR slightly without affecting the impedance matching bandwidth. Using this approach effective CP bandwidth of a conventional design is improved to 5%.","PeriodicalId":286769,"journal":{"name":"2018 IEEE Indian Conference on Antennas and Propogation (InCAP)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"A New Design Approach to Improve the Circular Polarization Characteristics of a Microstrip Antenna\",\"authors\":\"B. P. Kumar, C. Kumar, D. Guha\",\"doi\":\"10.1109/INCAP.2018.8770932\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Designing a circularly polarized (CP) microstrip patch on a thick substrate is a bit tricky. It is a challenge to achieve the overlap of the required impedance matching as well as axial ratio (AR) lower than 3 dB over a common band of frequencies. In this work, a new design approach has been presented. Some strategic engineering in the form of a pair of metallic stubs for a circular patch has been adopted. This provides a flexibility of varying the frequency corresponding to the best AR slightly without affecting the impedance matching bandwidth. Using this approach effective CP bandwidth of a conventional design is improved to 5%.\",\"PeriodicalId\":286769,\"journal\":{\"name\":\"2018 IEEE Indian Conference on Antennas and Propogation (InCAP)\",\"volume\":\"10 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2018-12-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2018 IEEE Indian Conference on Antennas and Propogation (InCAP)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/INCAP.2018.8770932\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2018 IEEE Indian Conference on Antennas and Propogation (InCAP)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/INCAP.2018.8770932","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A New Design Approach to Improve the Circular Polarization Characteristics of a Microstrip Antenna
Designing a circularly polarized (CP) microstrip patch on a thick substrate is a bit tricky. It is a challenge to achieve the overlap of the required impedance matching as well as axial ratio (AR) lower than 3 dB over a common band of frequencies. In this work, a new design approach has been presented. Some strategic engineering in the form of a pair of metallic stubs for a circular patch has been adopted. This provides a flexibility of varying the frequency corresponding to the best AR slightly without affecting the impedance matching bandwidth. Using this approach effective CP bandwidth of a conventional design is improved to 5%.