Journal of The Institute of Information and Telecommunication Facilities Engineering (정보통신설비학회논문지)

Korea Institute of Information and Telecommunication Facilities Engineering (한국정보통신설비학회)
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A Design of Dual Band LNA for RFID Reader Using LC-tank Matching Circuit

LC-Tank 매칭 회로를 적용한 RFID 리더용 이중대역 저잡음 증폭기 설계

  • 이제광 (중앙대학교 전자전기공학부) ;
  • 고재형 (중앙대학교 전자전기공학부) ;
  • 김군태 (중앙대학교 전자전기공학부) ;
  • 김형석 (중앙대학교 전기공학부)
  • Received : 2010.10.11
  • Accepted : 2010.12.12
  • Published : 2010.12.31
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Abstract

In this paper, a dual band LNA (Low Noise Amplifier) with a LC-tank matching circuit is designed for 912MHz and 2.45GHz RFID reader. The operating frequency is decided by the LC-tank resonance. The simulated results demonstrate that S21 parameter is 11.683dB and 5.748dB at 912MHz and 2.45GHz, respectively, and the S11 are -10.796dB and -21.261dB, the S22 are -7.131dB and -14.877dB at the same frequencies. The measured NF (Noise Figure) is 0.471 and 1.726 at 912MHz and 2.45GHz, respectively.

Keywords

Acknowledgement

Supported by : 중앙대학교