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

fYear

2007

fDate

11-14 Dec. 2007

Firstpage

1

Lastpage

4

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);

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/APMC.2007.4555022

Filename

4555022