標題: An Ultra-low-voltage CMOS VCO Using Parallel Capacitor for Phase Noise Reduction
作者: Lin, Chun-Yi
Rao, Pei-Zong
Chiu, Hsen-Hung
Chung, Shyh-Jong
傳播研究所
Institute of Communication Studies
公開日期: 2012
摘要: In this work, a 7.92 GHz ultra-low-voltage LC-tank voltage controlled oscillator (VCO) is introduced. The proposed LC-tank VCO adopts a NMOS cross-coupled topology and additional parallel capacitors for low voltage operation and phase noise reduction. The measured phase noise at 600 KHz frequency offset is -98 dBc/Hz and at 1 MHz offset is -108 dBc/Hz, respectively. The proposed VCO achieves a figure-of-merit (FOM) value of -187 dBc/Hz, drawing 0.87 mW from a 0.62V supply. The proposed circuit topology is designed for ultra wide-band (UWB) applications and implemented in TSMC 0.18 mu M CMOS technology.
URI: http://hdl.handle.net/11536/23142
ISBN: 978-1-934142-20-2
ISSN: 1559-9450
期刊: PROCEEDINGS OF PROGRESS IN ELECTROMAGNETICS RESEARCH SYMPOSIUM (PIERS 2012)
起始頁: 1256
結束頁: 1260
Appears in Collections:Conferences Paper