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Switchable filtering in Vivaldi antenna

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4 Author(s)
Hamid, M.R. ; Electron. Electr. & Comput. Eng., Univ. of Birmingham, Birmingham, UK ; Hall, P.S. ; Gardner, P. ; Ghanem, F.

Presented is a new frequency switchable Vivaldi antenna that has a capability to operate in a wideband mode (1-3 GHz) and reconfigure to six different subbands of operations. The reconfiguration is realised by coupling and changing the effective electrical length of ring slots inserted in the structure by means of pin diode switches. To examine antenna performances, simulated and measured results are presented. Good impedance matches and radiation patterns have been achieved. The proposed antenna is suitable for wideband and multimode radio applications.

Published in:

Electronics Letters  (Volume:46 ,  Issue: 7 )