{"title":"基于矩形环形天线的金属物体可调谐超高频RFID标签设计","authors":"Yun Jing Zhang, Peng Li, Hao Zeng, Mei Song Tong","doi":"10.1109/PIERS-Fall48861.2019.9021400","DOIUrl":null,"url":null,"abstract":"In this paper, a modified rectangular loop UHF RFID tag antenna mountable on metallic objects is proposed. We first investigate the impedance and gain of an electrically large loop antenna with and without a metal plate attached to its bottom, and give a typical loop tag antenna mountable on metal with a good performance. Based on the above analysis, a scheme of folding is presented to miniaturize the tag. In addition, utilizing the shorted ends formed by folding can tune the bandwidth to satisfy the global use. The total size is 70 mm × 34 mm × 1.6 mm. The measured maximum reading range is 3.5 m and 2.0 m among 902-928 MHz on metallic objects and in free space, respectively.","PeriodicalId":197451,"journal":{"name":"2019 Photonics & Electromagnetics Research Symposium - Fall (PIERS - Fall)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Design of a Tunable UHF RFID Tag Based on Rectangular Loop Antennas for Metallic Objects\",\"authors\":\"Yun Jing Zhang, Peng Li, Hao Zeng, Mei Song Tong\",\"doi\":\"10.1109/PIERS-Fall48861.2019.9021400\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this paper, a modified rectangular loop UHF RFID tag antenna mountable on metallic objects is proposed. We first investigate the impedance and gain of an electrically large loop antenna with and without a metal plate attached to its bottom, and give a typical loop tag antenna mountable on metal with a good performance. Based on the above analysis, a scheme of folding is presented to miniaturize the tag. In addition, utilizing the shorted ends formed by folding can tune the bandwidth to satisfy the global use. The total size is 70 mm × 34 mm × 1.6 mm. The measured maximum reading range is 3.5 m and 2.0 m among 902-928 MHz on metallic objects and in free space, respectively.\",\"PeriodicalId\":197451,\"journal\":{\"name\":\"2019 Photonics & Electromagnetics Research Symposium - Fall (PIERS - Fall)\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2019-12-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2019 Photonics & Electromagnetics Research Symposium - Fall (PIERS - Fall)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/PIERS-Fall48861.2019.9021400\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2019 Photonics & Electromagnetics Research Symposium - Fall (PIERS - Fall)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/PIERS-Fall48861.2019.9021400","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Design of a Tunable UHF RFID Tag Based on Rectangular Loop Antennas for Metallic Objects
In this paper, a modified rectangular loop UHF RFID tag antenna mountable on metallic objects is proposed. We first investigate the impedance and gain of an electrically large loop antenna with and without a metal plate attached to its bottom, and give a typical loop tag antenna mountable on metal with a good performance. Based on the above analysis, a scheme of folding is presented to miniaturize the tag. In addition, utilizing the shorted ends formed by folding can tune the bandwidth to satisfy the global use. The total size is 70 mm × 34 mm × 1.6 mm. The measured maximum reading range is 3.5 m and 2.0 m among 902-928 MHz on metallic objects and in free space, respectively.
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