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학술대회 70/80GHz GaAs MMIC Receiver with 4th SHP Mixer
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김봉수, 변우진, 강민수, 김광선, 송명선
International Conference on Ubiquitous and Future Networks (ICUFN) 2013, pp.611-614
13PR1200, 모바일 빅뱅시대의 스펙트럼 슈퍼하이웨이 기술개발, 최재익
In this paper, the implementation of a 0.1 um GaAs pHEMT process MMIC LNA, a sub-harmonically pumped (SHP) mixer, and a single-chip receiver for 70/80 GHz point-to-point (PtP) communications are presented. In order to obtain high-gain performance and good flatness for a 15 GHz (71-86 GHz) wideband LNA, we use a 5-stage input/output ports transmission line matching method. In order to decrease package loss and cost, 2nd/4th SHP mixers were designed. From the measured results, the 5-stage LNA shows a gain of 23 dB and noise figure of 4.5 dB. The SHP mixer shows 2nd/4th conversion losses of 12/17 dB and an input P1dB of -1.5-+1.5 dBm. Finally, a single-chip receiver based on a 4th SHP mixer shows good gain results of 6 dB, a noise figure of 6 dB, and an Input P1dB of -21 dBm. © 2013 IEEE.
KSP 제안 키워드
15 GHz, 6 GHz, GaAs MMIC, GaAs pHemt, Line matching, Noise Figure(NF), Point-to-Point, Single-Chip, Transmission line, good flatness, high gain