Journal of the Institute of Electronics Engineers of Korea TC (대한전자공학회논문지TC)

The Institute of Electronics and Information Engineers (대한전자공학회)
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High Conversion Gain Millimeter-wave Monolithic Subharmonic Mixer With Cascode Harmonic Generator

Cascode형 하모닉 발생기를 이용한 고변환이득 특성의 밀리미터파 단일칩 Subharmonic 믹서

  • An, Dan (Millimeterwave INnovation Technology research center(MINT), Dongguk Univ) ;
  • Kim, Sung-Chan (Millimeterwave INnovation Technology research center(MINT), Dongguk Univ) ;
  • Sul, Woo-Suk (Millimeterwave INnovation Technology research center(MINT), Dongguk Univ) ;
  • Han, Hyo-Jong (Millimeterwave INnovation Technology research center(MINT), Dongguk Univ) ;
  • Lee, Han-Shin (Millimeterwave INnovation Technology research center(MINT), Dongguk Univ) ;
  • Uhm, Won-Young (Millimeterwave INnovation Technology research center(MINT), Dongguk Univ) ;
  • Park, Hyung-Moo (Millimeterwave INnovation Technology research center(MINT), Dongguk Univ) ;
  • Kim, Sam-Dong (Millimeterwave INnovation Technology research center(MINT), Dongguk Univ) ;
  • Rhee, Jin-Koo (Millimeterwave INnovation Technology research center(MINT), Dongguk Univ)
  • 안단 (동국대학교 밀리미터파 신기술연구센터) ;
  • 김성찬 (동국대학교 밀리미터파 신기술연구센터) ;
  • 설우석 (동국대학교 밀리미터파 신기술연구센터) ;
  • 한효종 (동국대학교 밀리미터파 신기술연구센터) ;
  • 이한신 (동국대학교 밀리미터파 신기술연구센터) ;
  • 엄원영 (동국대학교 밀리미터파 신기술연구센터) ;
  • 박형무 (동국대학교 밀리미터파 신기술연구센터) ;
  • 김삼동 (동국대학교 밀리미터파 신기술연구센터) ;
  • 이진구 (동국대학교 밀리미터파 신기술연구센터)
  • Published : 2003.05.01
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Abstract

In this paper, we have presented millimeter-wave high conversion gain quadruple subharmonic mixers adopting the cascode harmonic generator The subharmonic mixers were successfully integrated by using 0.1 ${\mu}{\textrm}{m}$ GaAs pseudomorphic HEMTs(PHEMTs) and coplanar waveguide(CPW) structures. Measured output of 1st, 2nd and 4th harmonics of the fabricated cascode 4th harmonic generator are -21.42 dBm, -32.65 dBm and -13.45 dBm, respectively, for an input power of 10 dBm at 14.5 GHz. We showed that the highest conversion gain of 3.4 dB has obtained thus far at a LO power of 13 dBm from the fabricated subharmonic mixers. The millimeter-wave subharmonic mixer also ensure a high degree of isolation showing -53.6 dB in the LO-to-IF and -46.2 dB in the LO-to-RF, respectively, at a frequency of 14.5 GHz. The high conversion gain achieved in this work is the first report among the millimeter-wave subharmonic mixers.

본 논문에서는 cascode 하모닉 발생기를 이용하여 고변환이득 특성의 밀리미터파 subharmonic 믹서를 설계 및 제작하였다. 밀리미터파 subharmonic 믹서는 0.1 ㎛ GaAs PHEMT와 CPW 라이브러리를 이용하여 설계되었다. 설계된 cascode 하모닉 발생기의 출력 특성 측정결과, 14.5 GHz의 신호를 10 dBm 전력으로 인가하였을때, 1차, 2차 및 4차 하모닉 성분은 각각 -21.62 dBm, -32.65 dBm 및 -13.45 dBm의 결과를 얻어 가장 큰 4차 하모닉 성분을 얻었으며, 제작된 밀리미터파 subharmonic 믹서의 측정결과 14.5 GHz LO 신호를 13 dBm의 크기로 입력하였을 때 3.4 dB의 높은 변환이득 특성을 얻었다. 또한 -53.6 dB의 LO-to-IF, -46.2 dB의 우수한 LO-to-RF 격리 특성을 나타내었다. 제작된 밀리미터파 subharmonic 믹서는 기존에 발표된 밀리미터파 대역의 subharmonic 믹서에 비해 가장 높은 변환이득 특성을 나타내었다.

Keywords

References

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