Ku-band 지구국 중계기를 위한 12W SSPA에 관한 연구

• 영문명: A study on the 12 watt SSPA for earth transponder at ku-band
• 발행기관: 개인저작물
• 저자명: 조창환(Chang Hwan Cho) 연영호(Yong Ho Youn) 김교헌(Kye Hun Kim) 김상철(Sang Cheol Kim) 홍의석(Ui Seok Hong)
• 간행물 정보: 『개인저작물 - 공학』제18권 제1호, 130~133쪽, 전체 4쪽
• 주제분류: 공학 > 개인저작물
• 파일형태: PDF
• 발행일자: 1995.05.01

영문 초록

This paper presents the development of a SSPA operating at Ku-band(14-14.5GHz) in order to replace TWTA used in the terrestrial transponder of a satellite communication. The driving stage of SSPA　uses internally matched 2W, 4W, 8W FET and the power stage is coupled wite two internally matched 8W FET by branch-line combiner. The SSPA is fabricated with both the RF circui and the bias circuitry operating temperature compensation, regulation and sequence on a aluminum housing. The SSPA testing results implemented in this way show 24.8±1dB small-signal gain, 41dBm P1dB power, a typical two tone C/IM3, -33dBc with single carrier backed off 6dB from P1dB, and gain stability over temperature(-30~50) ±1dB.