Multihyperuniform Disorder and Its Application on Shared-Aperture Phased Antenna Arrays

The main design strategy for shared-aperture antenna arrays usually involves the stacking of patch arrays operating at different frequencies on a multilayer setup. This implies that a sophisticated feeding network needs to be designed for each stacked array and in several cases proper Frequency Selective Surfaces (FSS) need to be employed, which will be invisible for certain design frequencies and will alter the propagation characteristics of the radiated wave for other frequencies. These designs although promising are rather complex, difficult to be generalized and in most cases reach up to tri-band operation. Here, we formulate the mathematical model behind the generation of a multiple element aperiodic distribution, the multihyperuniform disordered, which has been found in several natural processes. We employ this type of disordered distribution in order to overcome the bandwidth limitations of periodic distributions and design shared aperture antenna arrays for ultra-wideband unidirectional emission applications which can be easily generalized to operate at desired operating frequencies.