A new circular subarray configuration using a modified genetic algorithm

Abstract

In recent times, digital beamforming with an analog-to-digital converter for a phased-array radar has attracted wide interest due to its stability and accuracy. Generally, to obtain a high gain, a phased array radar requires many antenna elements, which results in high cost and computing load. To mitigate these problems, subarraying, which divides the entire array elements into a few disjoint groups, is a good solution. In this paper, we propose a new design methodology for disjoint subarray configuration based on a modified Genetic algorithm and a new grouping rule to preserve the number of desired subarrays. The validity of the proposed algorithm is demonstrated through simulation.

Acknowledgment

This research was supported by the Agency for Defense Development (ADD), Korea and partially by Kwangwoon University on a sabbatical year in 2012.