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Multi-objectives adaptive array synthesis using speedy-particle swarm method

Nik Abd. Malik, Nik Noordini and Esa, Mazlina and Syed Yusof, Sharifah Kamilah and Abdul Latiff, Nurul Mu'azzah (2015) Multi-objectives adaptive array synthesis using speedy-particle swarm method. Jurnal Teknologi, 77 (10). pp. 91-97. ISSN 2180-3722

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Official URL: http://dx.doi.org/10.11113/jt.v77.6291

Abstract

A method of computing the optimum element distance position of multi-objectives adaptive linear antenna arrays (MLAA) is developed by taking several objectives (eg. adaptive capability, beamwidth and minimum sidelobe level (SLL)) into consideration. In this paper, the recently invented algorithm, known as Speedy-Particle Swarm Optimization (SpPSO) algorithm is adopted to optimize the distance between the MLAA elements. Different numerical examples of 8- and 12-element MLAA are presented to validate and illustrate the capability of SpPSO for pattern synthesis with a prescribed adaptive angle, controllable beamwidth and minimum SLL. It was found that by employing SpPSO method, the results provide considerable improvement over the conventional array. It is observed that the maximum normalized SLL of -12.27 dB has been achieved by using SpPSO for 8-element MLAA. The proposed SpPSO-based LAA also able to achieve a beampattern with sufficiently low sidelobes for 12-element MLAA by having maximum SLL of -16.46 dB, a desired wider FNBW of 50° and main beam that is pointing to 20°.

Item Type:Article
Uncontrolled Keywords:linear array, particle swarm method
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:56150
Deposited By: Fazli Masari
Deposited On:16 Nov 2016 00:37
Last Modified:01 Nov 2017 04:16

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