High-speed low-cost direct conversion digital receiver

Author

Gagne, J.-F. ; Gauthier, J. ; Ke Wu ; Bosisio, R.G.

Author_Institution

Dept. de Genie Electr. et Genie Inf., Ecole Polytech. de Montreal, Que., Canada

Volume

2

fYear

2001

fDate

20-24 May 2001

Firstpage

1093

Abstract

In this paper, an analog carrier recovery loop is proposed and developed to provide a complete direct conversion digital six-port receiver operating at microwave ISM frequency of 2.45 GHz. Results on data rate limitation are shown for QPSK signals up to data rates of 52 Mb/s. Parametric measurements in connection with CW, adjacent channel and co-channel interferences are presented for a data rate of 40 Mb/s. Finally, phase offset between the carrier and the reference signal, along with carrier frequency deviation performance are also presented for a rate of 40 Mb/s.

Keywords

UHF circuits; adjacent channel interference; cellular radio; cochannel interference; digital radio; quadrature phase shift keying; radio receivers; 2.45 GHz; 40 Mbit/s; 52 Mbit/s; QPSK signals; adjacent channel interference; analog carrier recovery loop; carrier frequency deviation performance; co-channel interference; co-channel interferences; data rate limitation; data rates; direct conversion digital receiver; microwave ISM frequency; phase offset; reference signal; six-port receiver; Circuits; Digital signal processing; Frequency conversion; Hardware; Pulse modulation; Pulse shaping methods; Quadrature phase shift keying; RF signals; Radio frequency; Signal generators;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 2001 IEEE MTT-S International

Conference_Location

Phoenix, AZ, USA

ISSN

0149-645X

Print_ISBN

0-7803-6538-0

Type

conf

DOI

10.1109/MWSYM.2001.967082

Filename

967082