An FM demodulator operating across 2–10GHz IF

Author

Visweswaran, Akshay ; Long, John R. ; Galatro, L. ; Spirito, M. ; Staszewski, Robert Bogdan

Author_Institution

Electron. Res. Lab., Tech. Univ. Delft, Delft, Netherlands

fYear

2013

fDate

2-4 June 2013

Firstpage

213

Lastpage

216

Abstract

An FM demodulator operating across 8GHz IF bandwidth for application in low-power, wideband heterodyne receivers is presented. A 4-stage ring oscillator is frequency modulated by a wideband input. Locking to 1/4th the input frequency, it divides the FM deviation by four, thereby reducing the energy required for wideband demodulation to 0.75nJ/bit. Autocorrelation of the quadrature-phased outputs using a new low-power folded CMOS mixer is capable of detecting FM up to 400Mb/s over 2-10GHz IF. The inductorless 65nm CMOS prototype circuit occupies 0.17mm² and dissipates 3mW from 1.2V.

Keywords

CMOS logic circuits; demodulators; low-power electronics; radio receivers; 4-stage ring oscillator; CMOS prototype circuit; FM demodulator; IF bandwidth; autocorrelation; frequency 2 GHz to 10 GHz; low-power folded CMOS mixer; low-power receivers; power 3 mW; quadrature-phased outputs; size 65 nm; voltage 1.2 V; wideband demodulation; wideband heterodyne receivers; CMOS integrated circuits; Demodulation; Frequency shift keying; Mixers; Receivers; Wideband; FM demodulator; FM deviation; auto-correlation; injection locking; low-power; wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio Frequency Integrated Circuits Symposium (RFIC), 2013 IEEE

Conference_Location

Seattle, WA

ISSN

1529-2517

Print_ISBN

978-1-4673-6059-3

Type

conf

DOI

10.1109/RFIC.2013.6569564

Filename

6569564