대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)

대한전기학회 (The Korean Institute of Electrical Engineers)
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초고주파용 대역 저잡음 증폭기에 관한 연구

A Study on the Broadband Microwave LNA(Low Noise Amplifier)

  • 이상원 (서울시립대학교 전자공학과) ;
  • 천창율 (서울시립대학교 전자공학과)
  • 발행 : 1995.11.18
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초록

Broadband Microwave Low Noise Amplifier(LNA) is designed. The matching method using the broadband BPF(BandPass Filter) is introduced in this paper. This method is that the filter having the same reflection coefficient of Microwave GaAs FET in the desired bandwidth is located on the input stage of FET. The Simulated results is obtained that the $S_{21}$ and noise figure in 2.5GHz$\sim$9GHz, band are 8.5dB $\pm$ 1.5dB, 2.5dB $\pm$ 0.3dB respectively.

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