Multihyperuniform Shared Aperture Antenna Arrays for Multiband Unidirectional Emission Applications

Abstract

The multihyperuniform disordered distribution is an aperiodic distribution that was firstly identified on avian eye retina and is the reason behind their wideband and highly directive vision attributes. In particular, five different photoreceptor species are arranged in a disordered manner following a hyperuniform distribution which provides low side lobe levels and highly directive radiation patterns, while the overall photoreceptor distribution is hyperuniform as well, hence the term multihyperuniformity. Inspired by this, we are applying the concept in the field of shared-aperture antenna array design and to prove the concept, design a penta-band shared-aperture antenna array of circular patches operating in microwave frequencies. The proposed antenna array has low side levels over the whole frequency bandwidth and provides high peak realized gain values at the patches' resonant frequencies.