대한전기학회논문지:전기물성ㆍ응용부문C (The Transactions of the Korean Institute of Electrical Engineers C)

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

Ku-Band 위성통신용 LNB 수신단의 2단 저잡음 증폭기 설계에 관한 연구

A Study on Design of Two-Stage LNA for Ku-Band LNB Receiving Block

  • 김형석 (중앙대 공대 전자전기공학과) ;
  • 곽용수 (중앙대 공대 전자전기공학과)
  • 발행 : 2006.02.01
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초록

In this paper, a low noise amplifier(LNA) in a receiver of a low noise block down converter (LNB) for direct broadcasting service(DBS) is implemented using GaAs HEMT. The LNA is designed for the bandwidth of 11.7 GHz-12.2 GHz. The two-stage LNA consists of a input matching circuit, a output matching circuit, DC-blocks and RF-chokes. Experimental results of the LNA show the noise figure less than 1.4 dB, the gain greater than 23 dB and the flatness of 1 dB in the bandwidth of 11.7 to 12.2 GHz.

키워드

참고문헌

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