Title: Antenna performance enhancement using inter-coupling effect reducing mechanisms

Authors: Gebrehiwet Gebrekrstos Lema

Addresses: School of Electrical and Computer Engineering, Mekelle University, Mekelle, 7000, Ethiopia

Abstract: Recently, thinning an antenna has resulted in attractive antenna radiation characteristics enhancement. Using a thinning antenna array, antenna performance can be enhanced because the inter-coupling effects of the array elements are reduced. Though the thinning both reduces the weight of the antenna and enhances the radiation characteristics, more antenna features can be enhanced using optimisation algorithms and inter-coupling reducing mechanisms. The purpose of this research is to enhance the antenna's performances by reducing SLL, increasing directivity, reducing power consumption, and increasing radiation pattern flexibility. The SLL attenuation mechanism is applied to further reduce the SLL in addition to the SLL reduction using the thinning and beamforming. Hence, in this paper, the three techniques (thinning, beamforming and SLL attenuation) are proposed to be integrated to enhance the antenna radiation characteristics. In general, the proposed combined method has resulted in much better SLL reduction, directivity improvement and power wastage reduction.

Keywords: antenna design; beam forming; antenna array; side lobe; directivity.

DOI: 10.1504/IJAACS.2024.142197

International Journal of Autonomous and Adaptive Communications Systems, 2024 Vol.17 No.5, pp.406 - 417

Accepted: 09 Nov 2022
Published online: 14 Oct 2024 *

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