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학술지 A 2-watt balanced power amplifier MMIC for Ku-band satellite communications
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저자
Jeong-Geun Kim, Hyun-Min Park, 김재영, 전순익, Songcheol Hong
발행일
200408
출처
Microwave and Optical Technology Letters, v.42 no.4, pp.342-344
ISSN
0895-2477
출판사
Wiley
DOI
https://dx.doi.org/10.1002/mop.20297
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.
키워드
Balanced power amplifier, Bus-bar power combiner, GaAs pHEMT, Kuband PA
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, Kuband PA