Zhurnal Radioelektroniki - Journal of Radio Electronics. eISSN 1684-1719. 2022. №5
Contents

Full text in Russian (pdf)

DOI: https://doi.org/10.30898/1684-1719.2022.5.5

Thinned linear antenna array synthesis

using genetic algorithm

while maintaining the initial half-power beamwidth

and low peak sidelobe level

A.S. Karasev, M.A. Stepanov

Novosibirsk State Technical University,
630079, Russia, Novosibirsk, Prospekt K. Marksa, 20

The paper was received April 27, 2022

Abstract. This paper proposes a genetic algorithm as an instrument for antenna array thinning. The algorithm with a deliberately chosen fitness function allows synthesizing thinned linear antenna arrays with low sidelobe level while maintaining the half-power beamwidth of a full linear array. Based on results from existing papers in this field and known approaches to antenna array thinning, a classification of thinning types is introduced. The optimal thinning type for a linear thinned antenna array is determined on the basis of a maximum attainable sidelobe level. The variation of main direction pattern characteristics, such as peak sidelobe level and half-power beamwidth, with respect to a thinning coefficient, are discussed for a number of amplitude tapers.

Key words: linear antenna array, thinned antenna array, genetic algorithm, thinning type, thinning coefficient.

Corresponding author: Karasev Aleksei Sergeevich, lexys30@gmail.com

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For citation:

Karasev A.S., Stepanov M.A. Thinned linear antenna array synthesis using genetic algorithm while maintaining the initial half-power beamwidth and low peak sidelobe level. Zhurnal radioelektroniki [Journal of Radio Electronics] [online]. 2022. №5. https://doi.org/10.30898/1684-1719.2022.5.5 (In Russian)