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학술지 A Small RFID Tag Antenna using Proximity-coupling to Identify Metallic Objects
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저자
최원규, 김정석, 배지훈, 최길영
발행일
200811
출처
Microwave and Optical Technology Letters, v.50 no.11, pp.2978-2981
ISSN
0895-2477
출판사
John Wiley & Sons
DOI
https://dx.doi.org/10.1002/mop.23831
협약과제
08MC4100, 개별물품 단위 응용을 위한 차세대 RFID 기술 개발, 채종석
초록
This article presents the design of a small- and low-profile radio frequency identification tag antenna in the UHF band that can be stuck to metallic objects. The designed tag antenna, which uses a ceramic material as an antenna substrate, consists of a radiating patch and microstrip lines for a proximity-coupled feeding structure. Impedance matching can be simply obtained between the antenna and tag chip without any matching network using the antenna structure. The return-loss bandwidth for S11 < 10 dB and radiation efficiency are about 9.5 MHz and 40% at 911 MHz, respectively. The read range is approximately from 3 to 3.5 m when the tag antenna is mounted on a metallic surface. © 2008 Wiley Periodicals, Inc.
키워드
Impedance matching, RFID, Tag antenna
KSP 제안 키워드
Antenna substrate, Feeding structure, Metallic surfaces, Microstrip Line, Passive radio frequency identification(RFID), Proximity-coupled, RFID Tag Antenna, Radiating Patch, Radiation Efficiency, Radio Frequency(RF), Read range