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 |