Design of Phased Antenna Arrays using Evolutionary Optimization Techniques

Panduro, Marco A.; Covarrubias, David H.; Méndez, Aldo

doi:10.5772/6121

Cited by 2 publications

(1 citation statement)

References 29 publications

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“…From literature survey, it can be seen that array radiation pattern optimization is performed using meta-heuristic algorithms on linear, 3 circular, [24][25][26][27][28] and elliptical array structures. The reason for preferring hexagonal array structure over other types of array [29][30][31][32][33][34][35][36][37][38] structure is that the radiation pattern of hexagonal antenna array posses a symmetry about the origin hence symmetric null placement at any plane of radiation is achievable with minimal effort. Also, rotation of the main beam for a desired angular value does not affect the radiation pattern at all which support stability and reduces complexity of the optimization.…”

Section: Introductionmentioning

confidence: 99%

Position‐only planar hexagonal array antenna pattern nulling with simultaneous side lobe reduction at multiple azimuth planes

Misra,

Mahanti

2023

Int J Communication

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SummaryThis article presents a study on the placement of multiple nulls as well as minimization of side lobe level in the radiation pattern using a planar hexagonal antenna array structure in two different vertical planes. The desired null depth is achieved to suppress the interference signal by the position‐only control of the uniformly excited isotropic antennas in the array structure. The immediate solution to the mentioned computational problem is reached by various meta‐heuristic optimization algorithms such as teaching learning‐based optimization (TLBO), symbiotic organism search (SOS), and moth fly optimization (MFO) within a considerably reduced processing time with a control over the design constrains. Various examples for diversified scenarios are demonstrated to place multiple deep nulls in the radiation pattern without compromising the pattern constraints and all other radiation pattern characteristics. This experiment sought to illustrate and quantify the unique benefits and limitations of proposed technique using three considered meta‐heuristic optimization algorithm.

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Section: Introductionmentioning

confidence: 99%

Position‐only planar hexagonal array antenna pattern nulling with simultaneous side lobe reduction at multiple azimuth planes

Misra,

Mahanti

2023

Int J Communication

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Design of Time-Modulated Linear Arrays With a Multi-Objective Optimization Approach

Pal¹,

Das²,

Basak³

2010

PIER B

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Abstract-This article proposes a Multi-objective Optimization (MO) framework for the design of time-modulated linear antenna arrays with ultra low maximum Side Lobe Level (SLL), maximum Side Band Level (SBL) and main lobe Beam Width between the First Nulls (BWFN). In contrast to the existing optimization-based methods that attempt to minimize a weighted sum of SLL, SBL, and BWFN, we treat these as three distinct objectives that are to be achieved simultaneously and use one of the best known MultiObjective Evolutionary Algorithms (MOEAs) of current interest called MOEA/D-DE (Decomposition based MOEA with Differential Evolution operator) to determine the best compromise among these three objectives. Unlike the single-objective approaches, the MO approach provides greater flexibility in the design by yielding a set of equivalent final solutions from which the user can choose one that attains a suitable trade-off margin as per requirements. We compared time-modulated antenna structures with other methods for linear array synthesis such as the excitation method and the phase-position synthesis method on the basis of the approximated Pareto Fronts

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Design of Phased Antenna Arrays using Evolutionary Optimization Techniques

Cited by 2 publications

References 29 publications

Position‐only planar hexagonal array antenna pattern nulling with simultaneous side lobe reduction at multiple azimuth planes

Position‐only planar hexagonal array antenna pattern nulling with simultaneous side lobe reduction at multiple azimuth planes

Design of Time-Modulated Linear Arrays With a Multi-Objective Optimization Approach

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