Title :
Reconfigurable Vivaldi antenna with tunable stop bands
Author :
Hamid, M.R. ; Gardner, P. ; Hall, P.S. ; Ghanem, F.
Author_Institution :
Electron. Electr. & Comput. Eng., Univ. of Birmingham, Birmingham, UK
Abstract :
A novel Vivaldi antenna is presented with tunable stop bands. A microstrip line resonator is coupled to the tapered slot, with three varactors used for tuning. The stop band can be tuned between 2 GHz and 7 GHz, to give a very wide tuning ratio, of 3.5:1. Good agreements between simulated and measured results are observed, which verify the design concepts.
Keywords :
UHF antennas; microstrip antennas; microstrip lines; microstrip resonators; slot antennas; varactors; frequency 2 GHz to 7 GHz; microstrip line resonator; reconfigurable Vivaldi antenna; tapered slot; tunable stop bands; varactors; Microstrip resonators; Resonant frequency; Varactors; Vivaldi antennas; Wideband; Vivaldi antenna; band rejection; cognitive radio; tunable; wideband antenna;
Conference_Titel :
Antenna Technology (iWAT), 2011 International Workshop on
Conference_Location :
Hong Kong
Print_ISBN :
978-1-4244-9133-9
DOI :
10.1109/IWAT.2011.5752361
