대한전자공학회:학술대회논문집 (Proceedings of the IEEK Conference)

대한전자공학회 (The Institute of Electronics and Information Engineers)
권호 표지

무선랜을 위한 5.25GHz 이미지 제거 저 잡음 증폭기 및 믹서 설계

5.25GHz Image Rejection Low Noise Amplifier and Mixer for Wireless LAN

  • 이준재 (고려대학교 전자컴퓨터 공학과) ;
  • 공동호 (고려대학교 전자컴퓨터 공학과) ;
  • 추성중 (고려대학교 전자컴퓨터 공학과) ;
  • 박정호 (고려대학교 전자컴퓨터 공학과)
  • Lee, Jun-Jae (Dept. of Electronics and Computer Engineering Korea University) ;
  • Kong, Dong-Ho (Dept. of Electronics and Computer Engineering Korea University) ;
  • Choo, Sung-Joong (Dept. of Electronics and Computer Engineering Korea University) ;
  • Park, Jung-Ho (Dept. of Electronics and Computer Engineering Korea University)
  • 발행 : 2005.11.26
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초록

This paper describes Low Noise Amplifier(LNA) and Single Balanced Mixer(SBM) with monolithic image rejection notch filter using 0.5um MESFET process. LNA, Notch filter, and SBM were integrated on a chip. This chip does not need off chip SAW filter, thereby reducing the overall cost and system volume. The LNA with Notch filter provides a gain of 15dB, noise figure of 1.2dB, and image rejection ratio of -74dB. The SBM has a conversion gain of 6dB.

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