標題: A 2.4 GHz Low Phase Noise In-Phase Coupled Class-C Quadrature VCO in 0.18 mu m CMOS
作者: Wu, Chuan-Yi
Liao, Yu-Te
電機資訊學士班
Undergraduate Honors Program of Electrical Engineering and Computer Science
關鍵字: In-phase coupling;low phase noise;oscillator
公開日期: 1-十月-2015
摘要: This letter presents a 2.4 GHz Class-C QVCO using an in-phase coupling topology. The phase noise of the proposed QVCO is effectively reduced by using a lower gate biasing voltage at the cross-coupled pairs and an in-phase coupling technique. A complementary Class-C oscillator is employed to enhance the startup robustness over a temperature range from -25 degrees C to 100 degrees C. A quadrature oscillator, implemented in a 0.18 mu m CMOS process, achieves a phase noise lower than -130.7 dBc/Hz at 1 MHz offsets and a frequency tuning range from 2.23 to 2.57 GHz while only consuming 3 mW. The design attains a remarkable figure-of-merit of 193.7 dBc/Hz.
URI: http://dx.doi.org/10.1109/LMWC.2015.2463212
http://hdl.handle.net/11536/128256
ISSN: 1531-1309
DOI: 10.1109/LMWC.2015.2463212
期刊: IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS
Volume: 25
Issue: 10
起始頁: 675
結束頁: 677
顯示於類別:期刊論文