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학술대회 Current Reuse Cross-Coupling CMOS VCO Using the CenterTapped Transformer in LC Tank for Digitally Controlled Oscillator
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저자
이영재, 현석봉, 김천수
발행일
200806
출처
Radio Frequency Integrated Circuits Symposium (RFIC) 2008, pp.549-552
DOI
https://dx.doi.org/10.1109/RFIC.2008.4561497
협약과제
07MH1300, 홈네트워크용 Cognitive 무선 시스템 개발, 김재영
초록
A current reuse cross-coupling transformer-based VCO with low phase noise and low power consumption was implemented in 0.13μm CMOS. The oscillation frequency was tuned from 46GHz to 6GHz (26% tuning range) using two different-sized varactor that adjusted fine and coarse tuning. The measured phase noise at 5.0GHz was -124dBc/Hz (1MHz offset) and maximum output power level was -5.5dBm. The 0.4×0.3mm2 core consumes very low power of 1.8mW for 1.2V and FOM has -196.2dB. © 2008 IEEE.
키워드
Coupling, Phase noise, Transformer, Varactor diode, Voltage controlled oscillator(VCO)
KSP 제안 키워드
CMOS VCO, Coupling transformer, Digitally controlled oscillator, LC tank, Low phase noise, Oscillation Frequency, Power Levels, Tuning Range, Varactor diode, Voltage controlled oscillator(VCO), coarse tuning