Title :
A 5-GHz low-phase-noise CMOS LC-VCO for China ETC applications
Author :
Guo, Chao ; Hu, Jun ; Zhu, Siheng ; Sun, Houjun ; Lv, Xin
Author_Institution :
Sch. of Inf. Sci. & Technol., Beijing Inst. of Technol., Beijing, China
Abstract :
A 5-GHz fully integrated for China ETC applications, low-phase-noise and wide-band LC voltage controlled oscillator is presented. Low-phase-noise has been achieved by using control line filtering technology and avoiding the tail current source. The circuit is implemented in the 0.18um TSMC CMOS process. The oscillator is tuned from 5.27 to 6.41 GHz with switched capacitors. This VCO consumes 5.6mA from a 1.8V supply and features a phase noise of -117 dBc/Hz at 1 MHz frequency offset.
Keywords :
CMOS analogue integrated circuits; low-power electronics; voltage-controlled oscillators; China ETC application; control line filtering technology; current 5.6 mA; frequency 1 MHz; frequency 5 GHz; frequency 5.27 GHz to 6.41 GHz; low-phase-noise CMOS LC-VCO; size 0.18 micron; switched capacitor; voltage 1.8 V; wide-band LC voltage controlled oscillator; CMOS integrated circuits; Capacitors; Phase noise; Semiconductor device measurement; Tuning; Voltage-controlled oscillators; complementary topology; phase noise; switched capacitors; voltage-controlled oscillator (VCO);
Conference_Titel :
Microwave Technology & Computational Electromagnetics (ICMTCE), 2011 IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-8556-7
DOI :
10.1109/ICMTCE.2011.5915508
