{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,27]],"date-time":"2026-02-27T15:40:05Z","timestamp":1772206805367,"version":"3.50.1"},"reference-count":42,"publisher":"MDPI AG","issue":"4","license":[{"start":{"date-parts":[[2021,2,22]],"date-time":"2021-02-22T00:00:00Z","timestamp":1613952000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100012166","name":"National Key Research and Development Program of China","doi-asserted-by":"publisher","award":["No. 257"],"award-info":[{"award-number":["No. 257"]}],"id":[{"id":"10.13039\/501100012166","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["No. 51572205"],"award-info":[{"award-number":["No. 51572205"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Equipment Pre-Research Joint Fund of EDD and MOE","award":["No. 614A02022262"],"award-info":[{"award-number":["No. 614A02022262"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>We propose a flexible anti-metal radio frequency identification (RFID) tag antenna based on a high-conductivity graphene assembly film (HCGAF). The HCGAF has a conductivity of 1.82 \u00d7 106 S m\u22121, a sheet resistance of 25 m\u03a9 and a thickness of 22 \u03bcm. The HCGAF is endowed with high conductivity comparable to metal materials and superb flexibility, which is suitable for making antennas for microwave frequencies. Through proper structural design, parameter optimization, semiautomatic manufacturing and experimental measurements, an HCGAF antenna could realize a realized gain of \u20137.3 dBi and a radiation efficiency of 80%, and the tag could achieve a 6.4 m read range at 915 MHz on a 20 \u00d7 20 cm2 flat copper plate. In the meantime, by utilizing flexible polyethylene (PE) foam, good conformality was obtained. The read ranges of the tags attached to curved copper plates with different bending radii were measured, as well as those of those attached to several daily objects. All the results demonstrate the excellent performance of the design, which is highly favorable for practical RFID anti-metal applications.<\/jats:p>","DOI":"10.3390\/s21041513","type":"journal-article","created":{"date-parts":[[2021,2,22]],"date-time":"2021-02-22T20:42:51Z","timestamp":1614026571000},"page":"1513","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":25,"title":["Flexible Anti-Metal RFID Tag Antenna Based on High-Conductivity Graphene Assembly Film"],"prefix":"10.3390","volume":"21","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8410-3853","authenticated-orcid":false,"given":"Bohan","family":"Zhang","sequence":"first","affiliation":[{"name":"Hubei Engineering Research Center of RF-Microwave Technology and Application, Wuhan University of Technology, Wuhan 430070, China"},{"name":"School of Information Engineering, Wuhan University of Technology, Wuhan 430070, China"}]},{"given":"Cheng","family":"Zhang","sequence":"additional","affiliation":[{"name":"Hubei Engineering Research Center of RF-Microwave Technology and Application, Wuhan University of Technology, Wuhan 430070, China"}]},{"given":"Yuchao","family":"Wang","sequence":"additional","affiliation":[{"name":"Hubei Engineering Research Center of RF-Microwave Technology and Application, Wuhan University of Technology, Wuhan 430070, China"}]},{"given":"Zhe","family":"Wang","sequence":"additional","affiliation":[{"name":"Hubei Engineering Research Center of RF-Microwave Technology and Application, Wuhan University of Technology, Wuhan 430070, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0982-6402","authenticated-orcid":false,"given":"Chengguo","family":"Liu","sequence":"additional","affiliation":[{"name":"Hubei Engineering Research Center of RF-Microwave Technology and Application, Wuhan University of Technology, Wuhan 430070, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0284-4990","authenticated-orcid":false,"given":"Daping","family":"He","sequence":"additional","affiliation":[{"name":"Hubei Engineering Research Center of RF-Microwave Technology and Application, Wuhan University of Technology, Wuhan 430070, China"},{"name":"State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China"}]},{"given":"Zhi P.","family":"Wu","sequence":"additional","affiliation":[{"name":"Hubei Engineering Research Center of RF-Microwave Technology and Application, Wuhan University of Technology, Wuhan 430070, China"},{"name":"School of Information Engineering, Wuhan University of Technology, Wuhan 430070, China"}]}],"member":"1968","published-online":{"date-parts":[[2021,2,22]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"8","DOI":"10.1109\/MP.2005.1549751","article-title":"The history of RFID","volume":"24","author":"Landt","year":"2005","journal-title":"IEEE Potentials"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"381","DOI":"10.1109\/JSAC.2005.861395","article-title":"RFID security and privacy: A research survey","volume":"24","author":"Juels","year":"2006","journal-title":"IEEE J. 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