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학술지 Stability Improvement of 60 GHz Narrowband Amplifier Using Microstrip Coupled Lines
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저자
장우진, 임종원, 안호균, 지홍구, 김해천
발행일
200912
출처
ETRI Journal, v.31 no.6, pp.741-748
ISSN
1225-6463
출판사
한국전자통신연구원 (ETRI)
DOI
https://dx.doi.org/10.4218/etrij.09.1209.0012
협약과제
09MR6700, 테라헤르츠대역 전파 환경 및 무선 전송 플랫폼 기술 연구, 정태진
초록
We present an analysis of microstrip coupled lines (MCLs) used to improve the stability of a 60 GHz narrowband amplifier. The circuit has a 4-stage structure implementing MCLs instead of metal-insulator-metal (MIM) capacitors for the unconditional stability of the amplifier and yield enhancement. The stability parameter, U, is used to compare the stability of MCLs with that of MIM capacitors. Experimental results show that MCLs are more stable than MIM capacitors with the same capacitances as MCLs because the parasitic parallel resistances of MCLs are lower than those of MIM capacitors. Moreover, the bandwidth of an amplifier using MCLs is narrower than one using MIM capacitors because the parasitic series inductances of MCLs are higher than those of MIM capacitors. Copyright © 2009 ETRI.
키워드
60 GHz amplifier, Microstrip coupled line, Millimeter-wave, Narrowband, Stability
KSP 제안 키워드
60 GHz, Microstrip Coupled Line, Stability parameter, Stage Structure, Unconditional stability, metal-insulator-metal (MIM) capacitor, millimeter wave(mmWave), stability improvement, yield enhancement