All-digital RF signal generation for software defined radio

Author

Frappé, Antoine ; Flament, Axel ; Stefanelli, Bruno ; Cathelin, Andreia ; Kaiser, Andreas

Author_Institution

Integrated Circuits Design Group, IEMN/ISEN, Lille

fYear

2008

fDate

10-11 July 2008

Firstpage

236

Lastpage

239

Abstract

Digital generation of radio-frequency signals is a key concept of software defined radios. This paper presents a digital transmitter chain including a very high-speed delta-sigma modulator. It comprises also baseband processing, sample rate conversion, digital upconverter and output stages (switching- mode amplifier and BAW filters). About 74 dB of ACLR (adjacent channel leakage ratio) is obtained on the 7.8 GS/s output of the delta-sigma modulator for the WCDMA standard.

Keywords

delta-sigma modulation; digital signals; signal generators; software radio; WCDMA; adjacent channel leakage ratio; all-digital RF signal generation; baseband processing; digital transmitter chain; digital upconverter; high-speed delta-sigma modulator; radio-frequency signals; sample rate conversion; software defined radio; Baseband; Delta modulation; Digital filters; Digital modulation; Multiaccess communication; Radio frequency; Radio transmitters; Radiofrequency amplifiers; Signal generators; Software radio;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems for Communications, 2008. ECCSC 2008. 4th European Conference on

Conference_Location

Bucharest

Print_ISBN

978-1-4244-2419-1

Electronic_ISBN

978-1-4244-2420-7

Type

conf

DOI

10.1109/ECCSC.2008.4611684

Filename

4611684