Jin Shi, Longlong Lin, X. Qing, Zhi Ning Chen, H. Tang, Li-Heng Zhou, H. Chu
{"title":"Electrically large dual-loop antenna for UHF near-field RFID readers","authors":"Jin Shi, Longlong Lin, X. Qing, Zhi Ning Chen, H. Tang, Li-Heng Zhou, H. Chu","doi":"10.1109/IWEM.2013.6888762","DOIUrl":null,"url":null,"abstract":"A dual-loop antenna is proposed to enlarge the interrogation zone of reader antennas used in near-field ultra high frequency (UHF) radio frequency identification (RFID) systems. The dual-loop antenna is composed of two segmented loos with one common side and a double-sided parallel-strip line feeding network. Each loop has a uniform and single direction flowing current itself. By providing reverse-direction flowing current to the two segmented loops, the strong and uniform magnetic field distribution over a large interrogation zone can be achieved. The prototype on FR4 printed borad (PCB) exhibits that the dual-loop antenna achieves the impedance matching over the frequency range from 790 to 1040 MHz and produces strong and uniform magnetic field distribution over an interrogation zone of 308 mm × 150 mm.","PeriodicalId":119627,"journal":{"name":"2013 IEEE International Workshop on Electromagnetics, Applications and Student Innovation Competition","volume":"44 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2013-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2013 IEEE International Workshop on Electromagnetics, Applications and Student Innovation Competition","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/IWEM.2013.6888762","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
Abstract
A dual-loop antenna is proposed to enlarge the interrogation zone of reader antennas used in near-field ultra high frequency (UHF) radio frequency identification (RFID) systems. The dual-loop antenna is composed of two segmented loos with one common side and a double-sided parallel-strip line feeding network. Each loop has a uniform and single direction flowing current itself. By providing reverse-direction flowing current to the two segmented loops, the strong and uniform magnetic field distribution over a large interrogation zone can be achieved. The prototype on FR4 printed borad (PCB) exhibits that the dual-loop antenna achieves the impedance matching over the frequency range from 790 to 1040 MHz and produces strong and uniform magnetic field distribution over an interrogation zone of 308 mm × 150 mm.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
