Title :
A Super-Harmonic Back-Gate Coupled Quadrature VCO in Standard CMOS Process
Author :
Wai Fung Chung ; Kwok Keung ; Cheng, Ming
Author_Institution :
Dept. of Electron. Eng., Chinese Univ. of Hong Kong, Hong Kong
Abstract :
A low-power, low-voltage CMOS quadrature voltage-controlled oscillator (QVCO) design based upon super- harmonic coupling is proposed. Quadrature phase outputs are obtained by second-harmonic signal injection via the back-gate input of the biasing transistors. Its advantages include low voltage operation (IV), low power consumption and high oscillation frequency. For demonstration, the measured performance of a fully integrated 5GHz QVCO circuit fabricated using 0.35-mum standard CMOS process is presented.
Keywords :
CMOS integrated circuits; voltage-controlled oscillators; CMOS quadrature voltage-controlled oscillator design; biasing transistors; frequency 5 GHz; quadrature phase outputs; second-harmonic signal injection; super-harmonic back-gate coupled quadrature VCO; CMOS process; CMOS technology; Coupling circuits; Design engineering; Energy consumption; Frequency; Injection-locked oscillators; Low voltage; Phase noise; Voltage-controlled oscillators; Back-gate coupling; complementary metal oxide semiconductor (CMOS); super-harmonic; voltage-controlled oscilator (VCO);
Conference_Titel :
Microwave Conference, 2007. APMC 2007. Asia-Pacific
Conference_Location :
Bangkok
Print_ISBN :
978-1-4244-0748-4
Electronic_ISBN :
978-1-4244-0749-1
DOI :
10.1109/APMC.2007.4555022
