Development of a Two-Stage High Gain D-Band MMIC Drive Amplifier Using $0.1{\mu}m$ Metamorphic HEMT Technology

$0.1{\mu}m$ Metamorphic HEMT를 이용한 고이득 D-Band MMIC 2단 구동증폭기 개발

  • 이복형 (삼성탈레스(주) H/W팀 H/W1 그룹) ;
  • 이진구 (동국대학교 전자공학과)
  • Published : 2008.12.25

Abstract

We report a high gain D-band(110 - 140 GHz) MMIC drive amplifier based on $0.1{\mu}m$ InGaAs/InAlAs/GaAs metamorphic HEMT technology. The amplifier shows an excellent $S_{21}$ gain characteristic greater than 10 dB in a millimeterwave frequency of 110 GHz, Also the amplifier has good reflection characteristics of a $S_{11}$ of -3.5 dB and a $S_{22}$ of -6.5 dB at 110 GHz, respectively The high performances of the MMIC drive amplifier is mainly attributed to the characteristics of the MHEMTs exhibiting a maximum transconductance of 760 mS/mm, a current gain cut-off frequency of 195 GHz and a maximum oscillation frequency of 391 GHz.

본 논문에서는 $0.1{\mu}m$ InGaAs/InAlAs/GaAs metamorphic HEMT기술을 기반으로 하여 D-Band(110 - 140 GHz) 대역에서 동작하는 MMIC 2단 구동 증폭기를 제작하였다. 제작된 구동 증폭기는 밀리미터파 대역인 110 GHz에서 10 dB 이상의 우수한 $S_{21}$ 이득 특성을 보였으며, 이때 반사 특성 또한 $S_{11}$ -3.5 dB와 $S_{22}$ -6.5 dB로 양호한 특성을 얻었다. 이러한 높은 성능의 MMIC 구동증폭기의 특성은 주로 MHEMT 성능에 기인한다. 본 논문에서 적용한 $0.1{\mu}m$ MHEMT는 760 mS/mm의 전달컨덕턴스 특성과 195 GHz의 차단주파수 391 GHz의 최대공진 주파수 특성을 갖는다.

Keywords

References

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