Title :
A tunable RF filter for multistandard GSM/UMTS/WiFi/LTE receiver
Author :
Othman, Ali ; Barrak, Rim ; Mabrouk, Mohamed
Author_Institution :
Higher Sch. of Commun. of Tunis (SUP´COM), Univ. of Carthage, Ariana, Tunisia
Abstract :
The tunable RF filters are considered as a promising solution which can be implemented in the front-end RF of Software Defined Radio (SDR) receivers to make them suitable for multistandard wireless applications in a cost-effective and power-efficient way. In this paper, a tunable RF filter based on Dual-Behaviour Resonators (DBR) topology and excited by varactors as tuning components is presented. This filter is designed to operate in next generation transceivers using GSM, UMTS, Wi-Fi and LTE wireless standards. Special attention will be paid to the varactor model and its impact on the filter performance. S parameters simulations show a good agreement with the standards specifications in terms of center frequencies and bandwidths.
Keywords :
3G mobile communication; Long Term Evolution; S-parameters; cellular radio; circuit tuning; next generation networks; radio transceivers; radiofrequency filters; software radio; varactors; wireless LAN; DBR topology; GSM receiver; LTE receiver; Long Term Evolution; S parameter; SDR receiver; UMTS receiver; WiFi receiver; dual-behaviour resonator; global system for mobile communications; multistandard wireless application; next generation transceiver; software defined radio; tunable RF filter; tuning component; universal mobile telecommunications system; varactor; Distributed Bragg reflectors; Radio frequency; Resonator filters; Standards; Topology; Tuning; Varactors; DBR topology; S parameters; SDR; Tunable filters; microstrip; multistandard; varactors;
Conference_Titel :
Microwave Symposium (MMS), 2014 14th Mediterranean
Print_ISBN :
978-1-4799-7390-3
DOI :
10.1109/MMS.2014.7088928
