Title :
A Multi-Mode Capable Receive Digital-Front-End for Cellular Terminal RFICs
Author :
Hueber, Gemot ; Stressed, G. ; Stuhlberger, Rainer ; Chabrak, Karim ; Maurer, Linus ; Hagelauer, Richard
Author_Institution :
Res. Inst. for Integrated Circuits, Johannes Kepler Univ., Linz
Abstract :
Developments aimed at the software-defined-radio (SDR) concept for cellular applications received increasing attention due to the necessity of multi-mode/multi-system capable terminals for next generation cellular communication systems. This paper describes highly reconfigurable digital front-end (DFE) enabling multi-mode capable RF receivers for cellular applications. Its main functionality includes sample-rate-conversion (SRC), channel filtering, dynamic range control, and signal conditioning for transmission via a digital interface between RFIC and baseband IC. The described partitioning shifts some of the functionality, normally located in the analog-front-end (channel filtering, gain control) and the baseband IC (matched filtering) to the digital-front-end. A receiver IC implementing the proposed concept has been fabricated in 0.13 mum RF-CMOS. The overall measurements have shown an EVM of 3.9 % for UMTS and 3.1 % for IS-95
Keywords :
3G mobile communication; CMOS digital integrated circuits; UHF integrated circuits; cellular radio; radio receivers; software radio; 0.13 micron; IS-95; RF CMOS; RF receivers; RFIC; UMTS; baseband integrated circuit; cellular terminal; channel filtering; digital interface; dynamic range control; gain control; matched filtering; multimode digital-front-end; next generation cellular communication; receiver integrated circuit; reconfigurable digital front-end; sample-rate conversion; signal conditioning; software defined radio; Analog integrated circuits; Application software; Baseband; Digital filters; Digital integrated circuits; Dynamic range; Filtering; Matched filters; Radio frequency; Radiofrequency integrated circuits;
Conference_Titel :
Microwave Symposium Digest, 2006. IEEE MTT-S International
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-9541-7
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2006.249773
