상세정보
학술지
A 12-GHz Fully Integrated Cascode CMOS LC VCO With Q-Enhancement Circuit
- 발행일
- 200802
- 출처
- IEEE Microwave and Wireless Components Letters, v.18 no.2, pp.133-135
- ISSN
- 1531-1309
- 출판사
- IEEE
- 협약과제
- 08MC2200, 초고속 멀티미디어 전송 UWB 솔루션 개발, 최상성
- 초록
- A fully integrated complementary metal oxide semiconductor (CMOS) cascode LC voltage controlled oscillator (VCO) with Q-enhancement technique has been designed for high frequency and low phase noise. The symmetrical cascode architecture is implemented with negative conductance circuit for improving phase noise performance in 0.18 μm CMOS technology. The measured phase noise is -110.8 dBc/Hz at the offset frequency of 1 MHz. The tuning range of 630 MHz is achieved with the control voltage from 0.6 to 1.4 V. The VCO draws 4.5 mA in a differential core circuit from 1.8 V supply. © 2008 IEEE.
- 키워드
- Cascode, Complementary metal oxide semiconductor (CMOS), Negative conductance, Phase noise, Q-enhancement, Voltage controlled oscillator (VCO)
- KSP 제안 키워드
- CMOS Technology, Cascode CMOS, Complementary metal-oxide-semiconductor(CMOS), Core circuit, Fully integrated, High Frequency(HF), LC voltage controlled oscillator(LC-VCO), Low phase noise, Metal-oxide(MOX), Noise performance, Q-enhancement