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A Design of RFID Tag Antenna with High Sensitivity for Car Side Mirror

사이드 미러용 고감도 RFID 태그 안테나의 설계

  • Han, Seung-Mok (Graduate school of National Korea Maritime University) ;
  • Kim, Min-Seong (Graduate school of National Korea Maritime University) ;
  • Min, Kyeong-Sik (Department of Radio Science and Engineering, National Korea Maritime University)
  • 한승목 (한국해양대학교 전파공학과) ;
  • 김민성 (한국해양대학교 전파공학과) ;
  • 민경식 (한국해양대학교 전파공학과)
  • Published : 2008.12.31

Abstract

This paper presents a design of RFID(Radio Frequency Identification} tag antenna which has high sensitivity for car side mirror. A proposed tag antenna ($154\;mm{\times}66\;mm{\times}1;mm$) resonants at 900 MHz and has a wide bandwidth of 690 MHz($490\;MHz{\sim}1180\;MHz$). The measured gain and readable range of tag antenna are 5.8 dBd and 10 m, respectively. Radiation pattern and readable range of proposed tag antenna located on inside of a side mirror including a car body are measured at anechoic chamber. It has been confirmed that the readable range in the vicinity of $90^{\circ}$ has been expanded about 1.5 m by comparison with one of proposed tag antenna without of car body. Good performance of the proposed tag antenna was observed and proved by comparison of measured results of commercial tag antenna.

이 논문은 차량 사이드 미러용 고감도 RFID 태그 안테나의 설계에 대해 나타내었다 제안된 태그 안테나($154\;mm{\times}66\;mm{\times}1;mm$)는 900 MHz에서 공진하며 690 MHz($490\;MHz{\sim}1180\;MHz$)의 넓은 대역폭을 가진다. 태그 안테나의 측정된 이득과 인식거리는 각각 5.8 dBd와 10 m 이다. 차체를 포함한 사이드미러 내부에 위치한 제안된 태그 안테나의 방사패턴과 인식거리가 전파암실에서 측정되었다. $90^{\circ}$근방에서의 인식거리는 차체가 없는 제안된 안테나의 인식거리와의 비교로부터 약 1.5 m 확장된 것을 확인하였다. 제안된 태그안테나의 우수한 성능이 상용 태그안테나의 측정된 결과들과의 비교에 의해 관측되고 입증되었다.

Keywords

References

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