Title :
Switched-Band Vivaldi Antenna
Author :
Hamid, M.R. ; Gardner, Peter ; Hall, Peter S. ; Ghanem, F.
Author_Institution :
Sch. of Electron., Electr., & Comput. Eng., Univ. of Birmingham, Birmingham, UK
fDate :
5/1/2011 12:00:00 AM
Abstract :
A novel Vivaldi antenna with added switched band functionality to operate in a wideband or narrowband mode is presented. The antenna reconfiguration is realized by inserting four pairs of switchable ring slots into the ground plane of the structure. A wide bandwidth mode from 1.0-3.2 GHz and three narrowband modes can be selected. A fully functional prototype with PIN diodes switches has been developed. Measured results shows good performance of the proposed designs. The antenna could be a suitable solution for a multimode application requiring wideband and frequency reconfigurable antennas, such as in military applications and cognitive radio.
Keywords :
broadband antennas; cognitive radio; p-i-n diodes; PIN diodes switch; antenna reconfiguration; cognitive radio; frequency 1 GHz to 3.2 GHz; ground plane; narrowband mode; switchable ring slot; switched band functionality; switched-band Vivaldi antenna; wideband mode; Broadband antennas; Narrowband; Resonant frequency; Shape; Slot antennas; Switches; Wideband; Antenna; Vivaldi; cognitive radio; reconfigurable; wideband;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2011.2122293
