The Journal of Korean Institute of Electromagnetic Engineering and Science (한국전자파학회논문지)

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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The Double Balance Mixer Design with the Characteristics of Low Intermodulation Distortion, and Wide Dynamic Range with Low LO-power using InGaP/GaAs HBT Process

InGaP/GaAs HBT공정을 이용하여 낮은 LO파워로 동작하고 낮은 IMD와 광대역 특성을 갖는 이중평형 믹서설계

  • S. H. Lee (RFIC Center Kwangwoon University) ;
  • S. S. Choi (RFIC Center Kwangwoon University) ;
  • J. Y. Lee (RFIC Center Kwangwoon University) ;
  • J. C. Lee (RFIC Center Kwangwoon University) ;
  • B. Lee (RFIC Center Kwangwoon University) ;
  • J. H. Kim (RFIC Center Kwangwoon University) ;
  • N. Y. Kim (RFIC Center Kwangwoon University) ;
  • Y. H. Lee (Knowledge＊ON Inc) ;
  • S. H. Jeon (Knowledge＊ON Inc)
  • Published : 2003.09.01
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Abstract

In this paper, the double balance mixer(DBM) for Ku-band LNB using InGaP/GaAs HBT process is suggested for the characteristics of low DC power consumption, low noise figure, low intermodulation distortion and wide dynamic range. The 5 dB conversion gain, 14 dB NF, bandwidth 17.9 GHz and 50.34 dBc IMD are obtained under RF input power of -23 dBm, with bias condition as 3 V and 16 mA. The linearity of InGaP/GaAs HBT, the broad band input matching scheme and the optimization of bias point result in the low IMD, the broad bandwidth and the low power consumption characteristics.

본 논문에서는 InCaP/GaAs HBT공정을 이용하여 낮은 DC 파워소모, 낮은 NF, 낮은 IMD 와 광대역 특성을 갖는 Ku-band LNB용 이중평형믹서를 설계하였다. 제작된 믹서는 3 V, 16 mA 의 U조건과 -23 dBm의 RF입력 조건하에서 5 dB의 변환이득, 14 dB의 NF, 17.9 GHz의 대역폭 그리고 50.34 dBc의 IMD특성을 얻었다. 낮은 IMD 특성, 광대역폭, 낮은 파워소모 특성은 InGaP/GaAs HBT의 선형성과 광대역 입력 정합기법과 바이어스 점의 최적화를 통해 얻을 수 있었다.

Keywords

References

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