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Modified antipodal Vivaldi antenna for ultra-wideband communications
, J.V. George, M. Kanagasabai, L. Lawrance, B. Moorthy, D.B. Rajendran, M.G. Nabi Alsath
Published in Institution of Engineering and Technology
Volume: 10
Issue: 4
Pages: 401 - 405
In this study, a modified antipodal Vivaldi antenna (AVA) with low cross-polarisation is proposed for ultra-wideband communications. The bandwidth offered by conventional single petal AVA is enhanced by adding another petal. This dual petal antenna occupies a small volume of 60 × 60 × 0.8 mm3 and provides operating bandwidth from 2.4 GHz to frequencies > 14 GHz. The proposed antenna configuration provides low cross-polarisation level which is <-15 dB over the entire operational band. The designed antenna offers realised gain > 5 dB and an average group delay variation of 0.5 ns. The prototype antenna is fabricated and tested to validate the simulation results. © The Institution of Engineering and Technology.
About the journal
JournalIET Microwaves, Antennas and Propagation
PublisherInstitution of Engineering and Technology