1. Modified antipodal Vivaldi antenna for ultra-wideband communications.
- Author
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Natarajan, Rajesh, George, Jithila V., Kanagasabai, Malathi, Lawrance, Livya, Moorthy, Balaji, Rajendran, Dinesh Babu, and Nabi Alsath, Mohammed Gulam
- Subjects
ULTRA-wideband antennas ,ULTRA-wideband communication ,BANDWIDTHS ,PERMITTIVITY ,POLARIZATION (Electricity) - Abstract
In this study, a modified antipodal Vivaldi antenna (AVA) with low cross-polarisation is proposed for ultrawideband 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 mm
3 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. [ABSTRACT FROM AUTHOR]- Published
- 2016
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