한국정보통신설비학회:학술대회논문집

Korea Institute of Information and Telecommunication Facilities Engineering (한국정보통신설비학회)
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Design of Tunable Image Rejection Filter

주파수 조절이 가능한 영상주파수 제거 여파기 구현

  • 하상훈 (중앙대학교 전자전기공학부) ;
  • 김형석 (중앙대학교 전자전기공학부) ;
  • 한형석 (경원대학교 전자전기정보공학부)
  • Published : 2006.08.01
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Abstract

In this paper, a tunable image rejection filter using two varactors is developed for mobile convergence. The filter is fabricated on a 0.25um substrate. ESD Pad is embedded to prevent damage caused by electrostatic discharge(ESD). Bias voltages are at WCDMA(2.1GHz). WiBro(2.3GHz), and WLAN(2.45) are 0.5V, 0.95V and 1.8V respectively. And the image rejection rations are more than 28dB at each band and insertion losses are less than 2dB at each band.

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