Title :
Switchable UWB/multi-narrowband antenna for cognitive radio applications
Author :
Erfani, Elham ; Niroo-jazi, Mahmoud ; Denidni, Tayeb A.
Author_Institution :
Dept. of Electr. Eng., Urmia Univ., Urmia, Iran
Abstract :
A new integrated switchable UWB/multi-narrowband antenna is proposed for cognitive radio applications. This antenna consists of an elliptical CPW-fed slot as a sensing antenna, three λg/2 slots with microstrip feed as communicating radiator and a microstrip-to-CPW transition to integrate two structures. The reconfigurability is achieved by inserting PIN-diodes across the CPW feed line and the entrance of three slots. Depending on the DC-biased states of switches, the proposed antenna can be operated in the wideband or switchable narrow band states. The obtained simulation results are shown in this paper.
Keywords :
antenna feeds; cognitive radio; coplanar waveguides; microstrip antennas; microstrip transitions; multifrequency antennas; p-i-n diodes; ultra wideband antennas; CPW feed line; DC-biased switch states; PIN-diodes; cognitive radio application; communicating radiator; elliptical CPW-fed slot; integrated switchable UWB-multinarrowband antenna; microstrip feed; microstrip-to-CPW transition; sensing antenna; Coplanar waveguides; Microstrip; Microstrip antennas; Slot antennas; Switches; Ultra wideband antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4673-0461-0
DOI :
10.1109/APS.2012.6347975
