Lianfu Zhao;Yongtao Ma;Weijia Meng;Kaixiang Peng;Kaihua Liu
{"title":"Bendable Folded-Patch Antenna With Resonant Ring Manufactured Based on Foam Support and PET Substrate for On-Metal UHF RFID","authors":"Lianfu Zhao;Yongtao Ma;Weijia Meng;Kaixiang Peng;Kaihua Liu","doi":"10.1109/JRFID.2023.3327939","DOIUrl":null,"url":null,"abstract":"A new flexible substrate UHF RFID tag on metal with a resonant ring and surface-etched slots that can be read at a long distance is proposed in this paper. The tag has a compact footprint of 50 mm \n<inline-formula> <tex-math>$\\times50$ </tex-math></inline-formula>\n mm \n<inline-formula> <tex-math>$\\times1.1$ </tex-math></inline-formula>\n mm (\n<inline-formula> <tex-math>$0.152\\,\\,\\lambda \\times 0.152\\,\\,\\lambda \\,\\,\\times 0.003\\,\\,\\lambda $ </tex-math></inline-formula>\n at 915 MHz). It consists of two rectangular patches with a closed resonant ring and 4 surface etching slots, a narrow inductive stub, and a square ground. With the above structure which can make the tag adjusts both the resistance and reactance of the chip. The antenna has 7 adjustable parameters and can also be resonated at different frequencies. In the simulation, the proposed tag reaches a high power transmission coefficient (99.99%), which is an almost perfect conjugate matching, and the tag can reach a long reading distance of about 11 m on the metal containers. Finally, the tag is fabricated on the flexible polyethylene terephthalate substrates and tested. With an EIRP (effective isotropic radiated power) of 4 W, the tag can be read at a long range of 7.29 meters on metal planes and 3.71 meters on curved metal surfaces.","PeriodicalId":73291,"journal":{"name":"IEEE journal of radio frequency identification","volume":null,"pages":null},"PeriodicalIF":2.3000,"publicationDate":"2023-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE journal of radio frequency identification","FirstCategoryId":"1085","ListUrlMain":"https://ieeexplore.ieee.org/document/10297304/","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
A new flexible substrate UHF RFID tag on metal with a resonant ring and surface-etched slots that can be read at a long distance is proposed in this paper. The tag has a compact footprint of 50 mm
$\times50$
mm
$\times1.1$
mm (
$0.152\,\,\lambda \times 0.152\,\,\lambda \,\,\times 0.003\,\,\lambda $
at 915 MHz). It consists of two rectangular patches with a closed resonant ring and 4 surface etching slots, a narrow inductive stub, and a square ground. With the above structure which can make the tag adjusts both the resistance and reactance of the chip. The antenna has 7 adjustable parameters and can also be resonated at different frequencies. In the simulation, the proposed tag reaches a high power transmission coefficient (99.99%), which is an almost perfect conjugate matching, and the tag can reach a long reading distance of about 11 m on the metal containers. Finally, the tag is fabricated on the flexible polyethylene terephthalate substrates and tested. With an EIRP (effective isotropic radiated power) of 4 W, the tag can be read at a long range of 7.29 meters on metal planes and 3.71 meters on curved metal surfaces.
本文提出了一种新型的金属柔性基板超高频射频标签,该标签具有谐振环和表面蚀刻槽,可以远距离读取。该标签的紧凑尺寸为50 mm $\times50$ mm $\times1.1$ mm ($0.152\,\,\lambda \乘以0.152\,\,\lambda \,\,\乘以0.003\,\,\lambda $在915 MHz)。它由两个矩形贴片,一个封闭的谐振环和4个表面蚀刻槽,一个窄的感应短段和一个方形地组成。利用上述结构,可以使标签同时调节芯片的电阻和电抗。天线有7个可调参数,也可以在不同的频率共振。在仿真中,所提出的标签达到了很高的功率传输系数(99.99%),几乎是完美的共轭匹配,标签在金属容器上的读取距离可以达到11 m左右。最后,在柔性聚对苯二甲酸乙二醇酯基板上制作标签并进行测试。EIRP(有效各向同性辐射功率)为4w,在金属平面上的读取距离为7.29米,在弯曲的金属表面上的读取距离为3.71米。