收稿日期: 2010-08-09
修回日期: 2010-11-18
网络出版日期: 2011-04-01
基金资助
国家自然科学基金一广东省联合基金重点项目(U0635004);国家自然科学基金资助项目(60571056);广东省自然科学基金重点项目(07118061)
A Broadband Antenna for the Application toMulti-Standard UHF RFID Tag
Received date: 2010-08-09
Revised date: 2010-11-18
Online published: 2011-04-01
Supported by
国家自然科学基金一广东省联合基金重点项目(U0635004);国家自然科学基金资助项目(60571056);广东省自然科学基金重点项目(07118061)
褚庆昕 曾锐华 . 一种适用于多标准的宽带RFID标签天线[J]. 华南理工大学学报(自然科学版), 2011 , 39(5) : 1 -5 . DOI: 10.3969/j.issn.1000-565X.2011.05.001
Proposed in this paper is a broadband antenna for the application to multi-standard UHF RFID ( RadioFrequency Identification) tag,which is composed of a dipole-like radiating body and a inductively-coupled feedingloop. The radiating body consists of two modified meandered dipole antennas different in length so as to form tworesonance points only slightly different in frequency. Thus,the antenna impedance,especially its imaginary part,keeps steady in the frequency range of 840 to 956 MHz,and good conjugate impedance matching to the RFID tagchip is obtained. The bandwidth of the antenna varies from 816 to 988 MHz,which is wide enough to cover theglobal ultrahigh-frequency RFID frequency range,so that the tags with the proposed antenna can be used globallywithout replicate design and the cost is greatly reduced. Finally,an antenna prototype is fabricated based on thesimulation model,with good accordance being found between the simulated and the measured results.
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