{"title":"4×4元件超宽带双极化孔径耦合微带贴片天线阵列无芯片RFID","authors":"F. Babaeian, N. Karmakar","doi":"10.1109/RFM50841.2020.9344752","DOIUrl":null,"url":null,"abstract":"One of the crucial components in a chipless RFID system is an ultrawide-band (UWB) reader antenna. To have a reliable tag measurement in a chipless RFID system, having a reader antenna with desired specifications is required. Those specifications are UWB operating frequency, high return loss, a high gain, two dual-polarized ports, and a uniform radiation pattern in near-field and near far-field of the antenna. In this paper, a UWB dual-polarized 4×4 element antenna array with a uniform excitation is proposed for dual-polarized and cross-polar chipless RFID tag measurements. To design this antenna array, a modified aperture coupled microstrip patch antenna element is utilized. The back-lobe level in the radiation pattern is reduced by adding a metal back-reflector. The promising simulation and measurement results of the antenna array are presented. It shows that the operating frequency range of the antenna is from 4.4 GHz to 6.8 GHz, and a maximum gain of 21 dBi is yield.","PeriodicalId":138339,"journal":{"name":"2020 IEEE International RF and Microwave Conference (RFM)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2020-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"4×4 Element UWB Dual-Polarized Aperture Coupled Microstrip Patch Antenna Array for Chipless RFID\",\"authors\":\"F. Babaeian, N. Karmakar\",\"doi\":\"10.1109/RFM50841.2020.9344752\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"One of the crucial components in a chipless RFID system is an ultrawide-band (UWB) reader antenna. To have a reliable tag measurement in a chipless RFID system, having a reader antenna with desired specifications is required. Those specifications are UWB operating frequency, high return loss, a high gain, two dual-polarized ports, and a uniform radiation pattern in near-field and near far-field of the antenna. In this paper, a UWB dual-polarized 4×4 element antenna array with a uniform excitation is proposed for dual-polarized and cross-polar chipless RFID tag measurements. To design this antenna array, a modified aperture coupled microstrip patch antenna element is utilized. The back-lobe level in the radiation pattern is reduced by adding a metal back-reflector. The promising simulation and measurement results of the antenna array are presented. It shows that the operating frequency range of the antenna is from 4.4 GHz to 6.8 GHz, and a maximum gain of 21 dBi is yield.\",\"PeriodicalId\":138339,\"journal\":{\"name\":\"2020 IEEE International RF and Microwave Conference (RFM)\",\"volume\":\"30 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2020-12-14\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2020 IEEE International RF and Microwave Conference (RFM)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/RFM50841.2020.9344752\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2020 IEEE International RF and Microwave Conference (RFM)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/RFM50841.2020.9344752","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
4×4 Element UWB Dual-Polarized Aperture Coupled Microstrip Patch Antenna Array for Chipless RFID
One of the crucial components in a chipless RFID system is an ultrawide-band (UWB) reader antenna. To have a reliable tag measurement in a chipless RFID system, having a reader antenna with desired specifications is required. Those specifications are UWB operating frequency, high return loss, a high gain, two dual-polarized ports, and a uniform radiation pattern in near-field and near far-field of the antenna. In this paper, a UWB dual-polarized 4×4 element antenna array with a uniform excitation is proposed for dual-polarized and cross-polar chipless RFID tag measurements. To design this antenna array, a modified aperture coupled microstrip patch antenna element is utilized. The back-lobe level in the radiation pattern is reduced by adding a metal back-reflector. The promising simulation and measurement results of the antenna array are presented. It shows that the operating frequency range of the antenna is from 4.4 GHz to 6.8 GHz, and a maximum gain of 21 dBi is yield.
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