An Optimal Design of Super-Directive Dipole Linear Antenna Array Using Gravitational Search Algorithm and Large Perfect Reflecting Surface

Title:An Optimal Design of Super-Directive Dipole Linear Antenna Array Using Gravitational Search Algorithm and Large Perfect Reflecting Surface

Volume: 11 Issue: 2

Author(s): Saumendra Kumar Mohanty*Biswa Binayak Mangaraj

Affiliation:

• Department of ECE, Siksha `O` Anusandhan University, Bhubaneswar,India

Keywords: Gravitational search algorithm, multi-objective optimization, method of moment, perfectly reflecting surface, super-directive.

Abstract: Background: This article presents a 12-element Dipole Linear Array Antenna (DLAA) optimization using Gravitational Search Algorithm (GSA) to find optimal design parameters such as lengths corresponding to each dipole and spacing corresponding to separation between two neighbor dipoles.

Methods: GSA optimizes the design parameters to offer the desired performance parameters such as high Directivity (DR), high Front to Back Ratio (FBR), high Front-to-Maximum-Side-Lobe-Level (FSL), and low Half-Power-Beam-Width (HBW) using a simple weighted sum type multi-objective function.

Results: After optimization, the performance parameter DR is improved further by placing a large perfect reflecting surface (PRS) close to one side that is perpendicular to the axis of the array to achieve a Super-Directive DLAA (SDLAA).

Conclusion: While analysing the DLAA, mutual coupling is taken into account for numerical analysis using Method of Moment (MoM).

Cite this article as:

Mohanty Kumar Saumendra*, Mangaraj Binayak Biswa , An Optimal Design of Super-Directive Dipole Linear Antenna Array Using Gravitational Search Algorithm and Large Perfect Reflecting Surface, Recent Advances in Electrical & Electronic Engineering 2018; 11 (2) . https://dx.doi.org/10.2174/2352096511666180124152013

DOI https://dx.doi.org/10.2174/2352096511666180124152013	Print ISSN 2352-0965
Publisher Name Bentham Science Publisher	Online ISSN 2352-0973