Wide-band receiver architecture with flexible blocker filtering techniques

Author

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

Author_Institution

ISEN, IEMN, Lille, France

fYear

2010

fDate

12-15 Dec. 2010

Firstpage

894

Lastpage

897

Abstract

Wide-band filterless RF front-ends are yet unpractical because of the stringent linearity requirements imposed by out-of-band blockers. A base-band to radio-frequency feedback receiver (BB-RF-FBRX) architecture is proposed in this paper, which reflects the base-band selectivity to the RF input. The aim of this architecture is to eliminate surface acoustic wave (SAW) filters between the antenna and the low noise amplifier (LNA). Two variants of BB-RF feedback are analyzed and explored by simulation. The most promising positive feed-back architecture should allow up to 19 dB rejection of out-of-band interferers.

Keywords

circuit feedback; low noise amplifiers; radio receivers; radiofrequency filters; BB-RF feedback; BB-RF-FBRX architecture; LNA; SAW filter elimination; antenna; baseband selectivity; baseband-to-radiofrequency feedback receiver; flexible blocker filtering techniques; low noise amplifier; out-of-band blockers; surface acoustic wave filter elimination; wideband receiver architecture; RF front-end; Software-Defined-Radio (SDR); linearity; out-of-band blockers; translational feed-back loop;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Circuits, and Systems (ICECS), 2010 17th IEEE International Conference on

Conference_Location

Athens

Print_ISBN

978-1-4244-8155-2

Type

conf

DOI

10.1109/ICECS.2010.5724656

Filename

5724656