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Communication engineering and systems
A two antenna array is proposed for generating circular polarization for an ultra-wideband system. It consists of two orthogonal antipodal vivaldi antennas and a feed network which provides the appropriate phase and amplitude over the band of interest. The proposed structure is low cost and easy to manufacture, offering an axial-ratio bandwidth of 74%.
Narbudowicz, A. et al. (2012)Vivaldi Array for Generation of UWB Circular Polarization, IEEE International Symposium on Antennas and Propagation, Chicago, IL, USA, IEEE Antennas & Propagation Society, Paper 360.2, 08/07/2012, doi:10.1109/APS.2012.6348767