Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Design of Buffer amplifier for a small receiving antenna in broadband

소형 수신안테나용 광대역 Buffer amplifier 설계

  • Oh Hyun-Jong (Dept. of Electronics Graduate School, Kyungpook National University) ;
  • Kim Che-Young (Dept. of Electronics Graduate School, Kyungpook National University) ;
  • Lee Wu-Seong (Dept. of Electronics Graduate School, Kyungpook National University)
  • 오현종 (경북대학교 전자공학과 전자파연구실) ;
  • 김채영 (경북대학교 전자공학과 전자파연구실) ;
  • 이우성 (경북대학교 전자공학과 전자파연구실)
  • Published : 2004.06.01
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Abstract

Mobile phone antenna needs a small size and light weight for carrying and handling. In case of receiving a wide band TV signal, it would be difficult to obtain a good impedance matching between the antenna and the circuit due to a large capacitive reactance of antenna. Buffer amplifier was established on the teflon( ${\varepsilon}_r=3.38$, h=20mils) substrate by using GaAs FET( CPY30 ) and Silicon RF Transistor( BFP540 ) produced by Infineon and experimented.

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