New approach to design tunable RF filters using DBR topology for SDR receivers

Author

Othman, Ali ; Barrak, Rim ; Mabrouk, Mohamed

Author_Institution

Higher Sch. of Commun. of Tunis (Sup´Com), Univ. of Carthage, Tunis, Tunisia

fYear

2013

fDate

2-5 Sept. 2013

Firstpage

1

Lastpage

4

Abstract

Reconfigurable RF filter in Software Defined Radio (SDR) receivers is a promising solution to reduce analog circuit size especially in case of multi-standard radio context. In this paper, a new approach to design tunable RF filters using dual behavior resonators (DBR) topology is proposed. This design methodology is performed to design an electrical tunable filter able to switch between UMTS, WiFi and LTE reception bands. The designed filter is simulated using FR4 microstrip technology. S parameter simulation results show good agreement with standard specifications in terms of filter center frequencies, bandwidths and selectivity.

Keywords

3G mobile communication; Long Term Evolution; radio receivers; radiofrequency filters; resonators; software radio; wireless LAN; DBR topology; FR4 microstrip technology; LTE reception band; S parameter simulation; SDR receiver; UMTS reception band; WiFi reception band; analog circuit size reduction; dual behavior resonator topology; electrical tunable filter; multistandard radio context; reconfigurable RF filter; software defined radio; tunable RF filter; Band-pass filters; Distributed Bragg reflectors; Filtering algorithms; Microwave filters; Radio frequency; Resonator filters; Topology; SDR receivers; dual-behavior resonators; microstrip; tunable RF filters;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium (MMS), 2013 13th Mediterranean

Conference_Location

Saida

Type

conf

DOI

10.1109/MMS.2013.6663078

Filename

6663078