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Electrical and electronic engineering, Communication engineering and systems
A compact ultrawideband (UWB) circularly polarized (CP) slot antenna is proposed with a methodology for automated reoptimization for packaging with proprietary devices. The slot structure employs a dual-feed with an integrated compact UWB phase shifter. The design process involves an advanced optimization algorithm and demonstrates the use of spline curves for generation of CP signals. These allow easy optimization, while preserving phase coherency across a wideband. The prototyped antennahas a CP bandwidth of 54% (from 3.2 to 6.1 GHz).
Ammann, M.J. et al. (2015) Design Method for Wideband Circularly Polarized Slot Antennas," in Antennas and Propagation, IEEE Transactions on , vol.63, no.10, pp.4271-4279, Oct. 2015 doi:10.1109/TAP.2015.2456954
Science Foundation Ireland and Irish Research Council