Reconfigurable wide-band receiver with positive feed-back translational loop

Author

Izquierdo, Christian ; Kaiser, Andreas ; Montaudon, Franck ; Cathelin, Philippe

Author_Institution

ST-Ericsson, Grenoble, France

fYear

2011

fDate

5-7 June 2011

Firstpage

1

Lastpage

4

Abstract

A wide-band receiver for multi-band multi-standard cellular applications with a positive feed-back translational loop is presented in this paper. This technique allows tunable RF filtering right on the input node of the LNA with the base-band filter selectivity. The architecture is highly reconfigurable both regarding the RF channel center frequency and the channel bandwidth. The 65nm CMOS prototype circuit achieves, when in WCDMA mode, attenuation of out-of-band interferers of 12dB at 20MHz frequency offset, improving the out-of-band IIP3 by 17dB. The packaged test-chip provides good performance over a very wide frequency range from 1.3GHz to 2.85GHz.

Keywords

CMOS integrated circuits; UHF filters; cellular radio; code division multiple access; low noise amplifiers; CMOS prototype circuit; LNA; RF filtering; WCDMA mode; base-band filter selectivity; frequency 1.3 GHz to 2.85 GHz; multiband multistandard cellular applications; positive feedback translational loop; reconfigurable wide-band receiver; size 65 nm; Gain; Impedance; Low pass filters; Mixers; Radio frequency; Receivers; RF filtering front-end; Translational loop; out-of-band blockers; positive feed-back; wide-band LNA;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio Frequency Integrated Circuits Symposium (RFIC), 2011 IEEE

Conference_Location

Baltimore, MD

ISSN

1529-2517

Print_ISBN

978-1-4244-8293-1

Electronic_ISBN

1529-2517

Type

conf

DOI

10.1109/RFIC.2011.5940616

Filename

5940616