{"title":"一种腔背式超高频近场分段环形天线","authors":"Jin Shi, X. Qing, Zhi Ning Chen","doi":"10.1109/APCAP.2012.6333130","DOIUrl":null,"url":null,"abstract":"A cavity backed segmented loop antenna is proposed for ultra high frequency (UHF) near-field radio frequency identification (RFID) readers. The induced current along the cavity edges shows significant effect on the impedance matching and magnetic field distribution of the segmented loop antenna. A backed cavity with optimized dimensions enables the antenna generating stronger magnetic field so that the reading range is enhanced. The reading range of an antenna prototype with a cavity of optimized dimensions of 234 mm × 234 mm × 51 mm is increased by 7 mm compared to that of the segmented loop antenna without any cavity.","PeriodicalId":178493,"journal":{"name":"2012 IEEE Asia-Pacific Conference on Antennas and Propagation","volume":"8 7","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2012-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"A cavity backed UHF near-field segmented loop antenna\",\"authors\":\"Jin Shi, X. Qing, Zhi Ning Chen\",\"doi\":\"10.1109/APCAP.2012.6333130\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A cavity backed segmented loop antenna is proposed for ultra high frequency (UHF) near-field radio frequency identification (RFID) readers. The induced current along the cavity edges shows significant effect on the impedance matching and magnetic field distribution of the segmented loop antenna. A backed cavity with optimized dimensions enables the antenna generating stronger magnetic field so that the reading range is enhanced. The reading range of an antenna prototype with a cavity of optimized dimensions of 234 mm × 234 mm × 51 mm is increased by 7 mm compared to that of the segmented loop antenna without any cavity.\",\"PeriodicalId\":178493,\"journal\":{\"name\":\"2012 IEEE Asia-Pacific Conference on Antennas and Propagation\",\"volume\":\"8 7\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2012-10-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2012 IEEE Asia-Pacific Conference on Antennas and Propagation\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/APCAP.2012.6333130\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2012 IEEE Asia-Pacific Conference on Antennas and Propagation","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/APCAP.2012.6333130","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
摘要
提出了一种用于超高频(UHF)近场射频识别(RFID)阅读器的腔背分段环路天线。沿腔边的感应电流对分段环形天线的阻抗匹配和磁场分布有显著影响。优化尺寸的背腔使天线产生更强的磁场，从而提高了读取范围。优化尺寸为234 mm × 234 mm × 51 mm的空腔天线样机的读数范围比无空腔的分段环形天线增大了7 mm。
A cavity backed UHF near-field segmented loop antenna
A cavity backed segmented loop antenna is proposed for ultra high frequency (UHF) near-field radio frequency identification (RFID) readers. The induced current along the cavity edges shows significant effect on the impedance matching and magnetic field distribution of the segmented loop antenna. A backed cavity with optimized dimensions enables the antenna generating stronger magnetic field so that the reading range is enhanced. The reading range of an antenna prototype with a cavity of optimized dimensions of 234 mm × 234 mm × 51 mm is increased by 7 mm compared to that of the segmented loop antenna without any cavity.
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