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학술지 E-band Low-noise Amplifier MMIC with Impedance-controllable Filter using SiGe 130-nm BiCMOS Technology
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저자
장우진, 이종민, 김성일, 이상흥, 강동민
발행일
202010
출처
ETRI Journal, v.42 no.5, pp.781-789
ISSN
1225-6463
출판사
한국전자통신연구원 (ETRI)
DOI
https://dx.doi.org/10.4218/etrij.2020-0118
협약과제
19DB1100, 거리해상도 개선을 위해 PLL을 적용한 1000 MHz 이상의 대역폭을 가지는 근접센서용 94 GHz 대역 SiGe 기반 Packaged Transceiver 칩 개발, 이상흥
초록
In this study, an E-band low-noise amplifier (LNA) monolithic microwave integrated circuit (MMIC) has been designed using silicon-germanium 130-nm bipolar complementary metal-oxide-semiconductor technology to suppress unwanted signal gain outside operating frequencies and improve the signal gain and noise figures at operating frequencies. The proposed impedance-controllable filter has series (Rs) and parallel (Rp) resistors instead of a conventional inductor-capacitor (L-C) filter without any resistor in an interstage matching circuit. Using the impedance-controllable filter instead of the conventional L-C filter, the unwanted high signal gains of the designed E-band LNA at frequencies of 54혻GHz to 57혻GHz are suppressed by 8혻dB to 12혻dB from 24혻dB to 26혻dB to 12혻dB to 18혻dB. The small-signal gain S21 at the operating frequencies of 70혻GHz to 95혻GHz are only decreased by 1.4혻dB to 2.4혻dB from 21.6혻dB to 25.4혻dB to 19.2혻dB to 24.0혻dB. The fabricated E-band LNA MMIC with the proposed filter has a measured S21 of 16혻dB to 21혻dB, input matching (S11) of ??14혻dB to ??5혻dB, and output matching (S22) of ??19혻dB to ??4혻dB at E-band operating frequencies of 70혻GHz to 95혻GHz.
키워드
E-band, impedance-controllable filter, low-noise amplifier, unwanted signal suppression
KSP 제안 키워드
BiCMOS Technology, Complementary metal-oxide-semiconductor(CMOS), E-band, High signal, Input matching, Metal-oxide(MOX), Microwave monolithic integrated circuits(MMIC), Semiconductor technology, Silicon-germanium(SiGe), Small signal gain, low noise amplifier(LNA)
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