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

fYear

2011

fDate

22-25 May 2011

Firstpage

267

Lastpage

269

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);

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Technology & Computational Electromagnetics (ICMTCE), 2011 IEEE International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-8556-7

Type

conf

DOI

10.1109/ICMTCE.2011.5915508

Filename

5915508