Journal of the Korea Institute of Military Science and Technology (한국군사과학기술학회지)

The Korea Institute of Military Science and Technology (한국군사과학기술학회)
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Study on the Ku band Solid-State Power Amplifier(SSPA) through the 40 W-grade High Power MMIC Development and the Combination of High Power Modules

40 W급 고출력 MMIC 개발과 고출력 증폭기 모듈 결합을 통한 Ku 밴드 반도체형 송신기(SSPA) 개발에 관한 연구

  • Kyoungil Na (Missile Research Institute, Agency for Defense Development) ;
  • Jaewoong Park (R&D Defense div. Radar Amp Department, RFHIC Corporation) ;
  • Youngwan Lee (R&D SATCOM &MMIC Div. , RFHIC Corporation) ;
  • Hyeok Kim (R&D Defense div. Radar Amp Department, RFHIC Corporation) ;
  • Hyunchul Kang (Defense Business Div., RFHIC Corporation) ;
  • SoSu Kim (Missile Research Institute, Agency for Defense Development)
  • 나경일 (국방과학연구소 미사일연구원) ;
  • 박재웅 (RFHIC(주) 연구소 방산본부 RA실) ;
  • 이영완 (RFHIC(주) 연구소 SATCOM &MMIC 본부) ;
  • 김혁 (RFHIC(주) 연구소 방산본부 RA실) ;
  • 강현철 (RFHIC(주) 방산사업본부) ;
  • 김소수 (국방과학연구소 미사일연구원)
  • Received : 2023.02.07
  • Accepted : 2023.04.14
  • Published : 2023.06.05
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Abstract

In this paper, to substitute the existing TWTA(Travailing Wave Tube Amplifier) component in small radar system, we developed the Ku band SSPA(Solid-State Power Amplifier) based on the fabrication of power MMIC (Monolithic Microwave Integrated Circuit) chips. For the development of the 500 W SSPA, the 40 W-grade power MMIC was designed by ADS(Advanced Design System) at Keysight company with UMS GH015 library, and was processed by UMS foundry service. And 70 W main power modules were achieved the 2-way T-junction combiner method by using the 40 W-grade power MMICs. Finally, the 500 W SSPA was fabricated by the wave guide type power divider between the drive power amplifier and power modules, and power combiner with same type between power modules and output port. The electrical properties of this SSPA had 504 W output power, -58.11 dBc spurious, 1.74 °/us phase variation, and -143 dBm/Hz noise level.

Keywords

Acknowledgement

이 논문은 2021년 정부(방위사업청)의 재원으로 수행된 연구 결과임.

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