Design of 24 GHz UWB CMOS IR-UWB transmitter with on-chip balun

Author

Kjelgård, Kristian Gjertsen ; Lande, Tor Sverre

Author_Institution

Dept. of Inf., Univ. of Oslo, Oslo, Norway

fYear

2012

fDate

17-20 Sept. 2012

Firstpage

320

Lastpage

323

Abstract

This paper presents a Short Range Radar IR-UWB transmitter design in 90 nm CMOS with center frequency of 24 GHz and a tunable bandwidth (-10 dB) from 2 to 5 GHz. A balun is loading the single balanced Gilbert cell mixer, providing a single ended output. The Gilbert mixer transistor sizes are optimized for maximum V_p-p and distortion from phase imbalance and Group Delay Dispersion in the balun are mitigated using odd-even mode analysis and simulations. The LC-tank VCO LO has a center frequency of 23.9 GHz with -98 dBc/Hz @ 1 MHz phase noise.

Keywords

CMOS integrated circuits; microwave mixers; radio transmitters; ultra wideband communication; IR-UWB transmitter; UWB CMOS; center frequency; frequency 24 GHz; group delay dispersion; odd-even mode analysis; on-chip balun; phase imbalance; short range radar; single balanced Gilbert cell mixer; single ended output; wavelength 90 nm; Bandwidth; CMOS integrated circuits; Dispersion; Impedance matching; Mixers; Radio transmitters; Transistors; 24 GHz; Balun; CMOS; IR-UWB; SRR; radar;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultra-Wideband (ICUWB), 2012 IEEE International Conference on

Conference_Location

Syracuse, NY

ISSN

2162-6588

Print_ISBN

978-1-4577-2031-4

Type

conf

DOI

10.1109/ICUWB.2012.6340503

Filename

6340503