{"title":"用于超高频RFID应用的低后瓣辐射介电负载端火槽天线","authors":"Ramiro A. Ramirez, T. Weller","doi":"10.1109/IWAT.2016.7434838","DOIUrl":null,"url":null,"abstract":"In this paper two end-fire constant width slot antennas built over an FR4 substrate are presented for UHF RFID tracking systems (902-928 MHz). The antennas are fed by a CPW to slot-line transition tuned to 915 MHz. Dielectric loading is implemented as a way to reduce the half-power beamwidth (HPBW); specifically, variations in the FR4 substrate thickness and additional loading material are used to achieve a 3 dB beamwidth of 75°, which is an improvement of 55° compared with the 130° HPBW when no loading is applied. Corrugated edges provide front-to-back ratio enhancement, achieving a ratio of 17.74 dB compared to 10.7 dB with no corrugation.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2016-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Dielectric-loaded end-fire slot antenna with low back-lobe radiation for UHF RFID applications\",\"authors\":\"Ramiro A. Ramirez, T. Weller\",\"doi\":\"10.1109/IWAT.2016.7434838\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this paper two end-fire constant width slot antennas built over an FR4 substrate are presented for UHF RFID tracking systems (902-928 MHz). The antennas are fed by a CPW to slot-line transition tuned to 915 MHz. Dielectric loading is implemented as a way to reduce the half-power beamwidth (HPBW); specifically, variations in the FR4 substrate thickness and additional loading material are used to achieve a 3 dB beamwidth of 75°, which is an improvement of 55° compared with the 130° HPBW when no loading is applied. Corrugated edges provide front-to-back ratio enhancement, achieving a ratio of 17.74 dB compared to 10.7 dB with no corrugation.\",\"PeriodicalId\":228233,\"journal\":{\"name\":\"2016 International Workshop on Antenna Technology (iWAT)\",\"volume\":\"29 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2016-02-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2016 International Workshop on Antenna Technology (iWAT)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/IWAT.2016.7434838\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2016 International Workshop on Antenna Technology (iWAT)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/IWAT.2016.7434838","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Dielectric-loaded end-fire slot antenna with low back-lobe radiation for UHF RFID applications
In this paper two end-fire constant width slot antennas built over an FR4 substrate are presented for UHF RFID tracking systems (902-928 MHz). The antennas are fed by a CPW to slot-line transition tuned to 915 MHz. Dielectric loading is implemented as a way to reduce the half-power beamwidth (HPBW); specifically, variations in the FR4 substrate thickness and additional loading material are used to achieve a 3 dB beamwidth of 75°, which is an improvement of 55° compared with the 130° HPBW when no loading is applied. Corrugated edges provide front-to-back ratio enhancement, achieving a ratio of 17.74 dB compared to 10.7 dB with no corrugation.
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