Array configuration optimisation of dual-band controlled reception pattern antenna arrays for anisotropic ground platforms

Abstract

This study proposes a systematic optimisation process of array configurations for controlled reception pattern antenna arrays. The array consists of a single reference antenna at the centre and four auxiliary antennas at the outer perimeter and is mounted on an anisotropic ground platform with an inter-element spacing of about 0.3 lambda. Only the mounting angles are adjusted to find the optimum array configuration. The proposed process is evaluated by comparing its performance with the global optimum, a conventional array configuration and random array configurations. The results demonstrate that the proposed process achieves a radiation gain close to the global optimum, and no significant gain reductions are found in the auxiliary antennas.