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

The Institute of Electronics and Information Engineers (대한전자공학회)
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The low conversion loss and low LO power V-band MIMIC Up-mixer

낮은 LO 입력 및 변환손실 특성을 갖는 V-band MIMIC Up-mixer

  • Lee Sang Jin (Millimeter-wave INnovation Technology research center, Dongguk University) ;
  • Ko Du Hyun (Millimeter-wave INnovation Technology research center, Dongguk University) ;
  • Jin Jin Man (Millimeter-wave INnovation Technology research center, Dongguk University) ;
  • An Dan (Millimeter-wave INnovation Technology research center, Dongguk University) ;
  • Lee Mun Kyo (Millimeter-wave INnovation Technology research center, Dongguk University) ;
  • Cho Chang Shik (Millimeter-wave INnovation Technology research center, Dongguk University) ;
  • Lim Byeong Ok (Millimeter-wave INnovation Technology research center, Dongguk University) ;
  • Chae Yeon Sik (Millimeter-wave INnovation Technology research center, Dongguk University) ;
  • Park Hyung Moo (Millimeter-wave INnovation Technology research center, Dongguk University) ;
  • Rhee Jin Koo (Millimeter-wave INnovation Technology research center, Dongguk University)
  • 이상진 (동국대학교 밀리미터파 신기술 연구센터) ;
  • 고두현 (동국대학교 밀리미터파 신기술 연구센터) ;
  • 진진만 (동국대학교 밀리미터파 신기술 연구센터) ;
  • 안단 (동국대학교 밀리미터파 신기술 연구센터) ;
  • 이문교 (동국대학교 밀리미터파 신기술 연구센터) ;
  • 조창식 (동국대학교 밀리미터파 신기술 연구센터) ;
  • 임병옥 (동국대학교 밀리미터파 신기술 연구센터) ;
  • 채연식 (동국대학교 밀리미터파 신기술 연구센터) ;
  • 박형무 (동국대학교 밀리미터파 신기술 연구센터) ;
  • 이진구 (동국대학교 밀리미터파 신기술 연구센터)
  • Published : 2004.12.01
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Abstract

In this paper, we present MIMIC(Millimeter-wave Monolithic Integrated Circuit) up-mixer with low conversion loss and low LO power for the V-band transmitter applications. The up-mixer was successfully integrated by using 0.1 ㎛ GaAs pseudomorphic HEMTs(PHEMTs) and coplanar waveguide (CPW) structures. The circuit is designed to operate at RF frequencies of 60.4 GHz, IF frequencies of 2.4 GHz, and LO frequencies of 58 GHz. The fabricated MIMIC up-mixer size is 2.3 mmxl.6 mm. The measured results show that the low conversion loss of 1.25 dB when input signal is -10.25 dBm at LO power of 5.4 dBm. The LO to RF isolation is 13.2 dB at 58 GHz. The fabricated V-band up-mixer represents lower LO input power and conversion loss characteristics than previous reported millimeter-wave up-mixers.

본 논문에서는 낮은 LO 입력으로 저 변환손실 특성을 갖는 MIMIC(Millimeter-wave Monolithic Integrated Circuit) V-band up-mixer를 설계 및 제작하였다. Up-mixer는 0.1 ㎛ GaAs PHEMT와 coplanar waveguide (CPW) 전송라인을 사용하여 제작되었다. Up-mixer는 60.4 GHz의 RF 주파수, 2.4 GHz의 IF 주파수와 58 GHz의 LO 주파수에서 동작되도록 설계되었다. Up-mixer는 표준 MIMIC공정을 사용하여 제작되었으며 칩 크기는 2.3 mmxl.6 mm이다. 제작된 up-mixer의 측정결과 입력신호가 -10.25 dBm 이고 LO의 입력 전력이 5.4 dBm 일 때 1.25 dB의 양호한 변환손실 특성을 얻었다. 58 GHz에서 LO 와 RF의 격리특성은 -13.2 dB를 나타내었다. 제작된 V-band up-mixer는 기존에 발표된 밀리미터파 up-mixer에 비하여 낮은 LO 입력 전력과 양호한 변환손실 특성을 나타내었다.

Keywords

References

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