상세정보
학술지
A 2-watt balanced power amplifier MMIC for Ku-band satellite communications
- 발행일
- 200408
- 출처
- Microwave and Optical Technology Letters, v.42 no.4, pp.342-344
- ISSN
- 0895-2477
- 출판사
- Wiley
- 협약과제
- 03MR3500, 능동 안테나용 다기능 MMIC 복합모듈 개발, 전순익
- 초록
- A Ku-band power amplifier MMIC has been developed using 0.25-μm GaAs pHEMT technology. To achieve small chip size and simple drain-bias connection, a bus-bar power combiner is used. Also, balanced-power amplifier topology is used to obtain good input/ output return losses. The small-signal gain is about 15 dB and the gain variation is less than 1 dB from 12 to 17 GHz. Good input/output return losses are achieved at less than -15 dB due to the balanced topology. P1dB of 32.6 dBm and PAE of 23.5% are achieved at 14 GHz. The effective chip area is 4.2×3.2 mm. Because the power amplifier is implemented using the balanced topology with the bus-bar power combiner, compact size, high output power, and good input/output return losses can be achieved simultaneously. © 2004 Wiley Periodicals, Inc.
- KSP 제안 키워드
- 17 GHz, 2 mm, Balanced power amplifier, Band Power, Bus-bar power combiner, Chip area, Compact size, GaAs pHemt, Gain variation, High output power, Ku-Band