Vivaldi Antenna With Integrated Switchable Band Pass Resonator

MR Hamid, Peter Gardner, Peter Hall, F Ghanem

Research output: Contribution to journalArticle

73 Citations (Scopus)


A novel reconfigurable wideband to narrowband Vivaldi antenna is presented. A single pair of ring slot resonators is located in the Vivaldi to realize frequency reconfiguration, maintaining the original size unchanged. The proposed antenna is capable of switching six different narrow pass bands within a wide operating band of 1-3 GHz, offering added prefiltering functionality. A fully functional prototype has been developed. PIN diode switches were employed at specific locations in the resonator to change its effective electrical length, hence forming different filter configurations. Antenna performance obtained from simulation and measurement results shows good agreement, which verifies the proposed design concepts. The antenna is potentially suitable for applications requiring dynamic band switching such as cognitive radio.
Original languageEnglish
Pages (from-to)4008-4015
Number of pages8
JournalIEEE Transactions on Antennas and Propagation
Issue number11
Publication statusPublished - 1 Nov 2011


  • Antenna
  • cognitive radio
  • Vivaldi
  • wideband
  • reconfigurable


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