Simultaneous sub-harmonic injection-locked mm-wave frequency generators for multi-band communications in CMOS

Author

Tam, Sai-Wang ; Socher, Eran ; Wong, Alden ; Wang, Yu ; Vu, Lan Duy ; Chang, Mau-Chung Frank

Author_Institution

California Univ., Los Angeles, CA

fYear

2008

fDate

June 17 2008-April 17 2008

Firstpage

131

Lastpage

134

Abstract

A technique for generating multiple mm-wave carrier frequencies is introduced, using simultaneous sub-harmonic injection locking of multiple VCOs to a single reference frequency. A prototype of 30 GHz and 50 GHz sub-harmonic injection-locked VCOs is realized in a 90 nm digital CMOS process and able to lock from 2^nd to 8^th harmonic of the reference frequency with locking range reaching 5.6 GHz. Simultaneous locking to the 3^rd and 5^th harmonics of a 10 GHz reference signal is also demonstrated.

Keywords

CMOS digital integrated circuits; field effect MIMIC; frequency synthesizers; injection locked oscillators; millimetre wave oscillators; radio equipment; voltage-controlled oscillators; CMOS; VCO; frequency 30 GHz; frequency 50 GHz; multiband communications; simultaneous subharmonic injection-locked mm-wave frequency generators; CMOS process; Communication switching; Frequency division multiaccess; Frequency synthesizers; Injection-locked oscillators; Power generation; Power transmission lines; Prototypes; Silicon; Voltage-controlled oscillators; CMOS; VCO; injection locking; mm-wave; subharmonic;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio Frequency Integrated Circuits Symposium, 2008. RFIC 2008. IEEE

Conference_Location

Atlanta, GA

ISSN

1529-2517

Print_ISBN

978-1-4244-1808-4

Electronic_ISBN

1529-2517

Type

conf

DOI

10.1109/RFIC.2008.4561402

Filename

4561402