Thue-Morse Code Implementation for the Design of a Concentric Hexagonal Ring Array

This work explores the performance improvement of a phased antenna array by modifying its topology. A non-conventional, quasiperiodic array configuration is proposed, where the radiating elements are arranged in a concentric hexagonal structure with an inter-ring spacing determined by a Thue-Morse sequence. The spacing between concentric hexagons is varied quasiperiodically to analyze its impact on key performance metrics, including half-power beamwidth, side lobe level, and directivity. The performance of the array is evaluated using MATLAB simulations, and the results demonstrate that this unconventional configuration can effectively enhance some key metrics for the antenna array.