An Ultrawideband (35:1) Shared-Aperture Antenna Array With Multihyperuniform Disorder

This paper is aimed at studying the concept of multihyperuniformity and applying it to the design of shared-aperture antenna arrays for ultra-wideband, broadside unidirectional emission. In this study, we present our work on the design of multiple frequency helical antenna arrays within a shared-aperture configuration, incorporating multihyperuniform disorder. The array consists of seven different intercalated helical subarrays and is optimized to cover a 35 : 1 continuous bandwidth at 0.4 – 14 GHz. We provide comprehensive details regarding the fabrication process and present measurement results. Our work provides a new alternative to existing solutions of antenna array designs and has wider applicability in electromagnetics. The proposed methodology extends the limitations for the realization of multi-band antenna arrays, surpassing the previously reported designs that operated in a maximum of three frequency bands, by incorporating naturally optimized disordered distributions.