Analysis of Linear Antenna Array for minimum Side Lobe Level, Half Power Beamwidth, and Nulls control using PSO

Rahman, Saeed Ur; Cao, Qunsheng; Ahmed, Muhammad Mansoor; Khalil, Hisham

doi:10.1590/2179-10742017v16i2913

Cited by 40 publications

(27 citation statements)

References 22 publications

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“…The space between the elements should, therefore, be adjusted correctly, i.e. the element spacing should be set to 0.5 λ in order to eliminate the impact of adjacent components [23]. Table 6 summarizes the corporate feed parameters before and after the optimization process.…”

Section: Graphene-based Tuneable Rectangular Microstrip Patch Array Amentioning

confidence: 99%

Simulation and optimization of tuneable microstrip patch antenna for fifth-generation applications based on graphene

Marhoon

Qasem

2020

IJECE

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Microstrip patch antennas (MPAs) are known largely for their versatility in terms of feasible geometries, making them applicable in many distinct circumstances. In this paper, a graphene-based tuneable single/array rectangular microstrip patch antenna (MPA) utilizing an inset feed technique designed to function in multiple frequency bands are used in a fifth-generation (5G) wireless communications system. The tuneable antenna is used to eliminate the difficulties caused by the narrow bandwidths typically associated with MPAs. The graphene material has a reconfigurable surface conductivity that can be adjusted to function at the required value, thus allowing the required resonance frequency to be selected. The simulated tuneable antenna comprises a copper radiating patch with four graphene strips used for tuning purposes and is designed to cover a wide frequency band. The proposed antenna can be tuned directly by applying a direct current (DC) voltage to the graphene strips, resulting in a variation in the surface impedance of the graphene strips and leading to shifts in the resonance frequency.

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Section: Graphene-based Tuneable Rectangular Microstrip Patch Array Amentioning

confidence: 99%

Simulation and optimization of tuneable microstrip patch antenna for fifth-generation applications based on graphene

Marhoon

Qasem

2020

IJECE

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“…I N modern wireless communication technology, reconfigurable antennas have wide attention because of their flexibility on the pattern, frequency, or polarization. Especially, the pattern reconfigurable antennas can control the main lobe in a specific direction or place the nulls in the desired direction [1]. In the literature, frequency [2], polarization [3], [4], and radiation pattern [6] reconfigurable has been designed for 5G wireless systems [5].…”

Section: Introductionmentioning

confidence: 99%

An Integrated Switchable EM Absorber and Beam Switchable Radiator

et al. 2020

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In this research work, a multifunctional metamaterial inspired surface is designed for two different applications, namely, electromagnetic (EM) absorber and radiator with pattern agility. The designed surface consists of periodic arrays of metallic loops and circular patches printed on a thin grounded dielectric slab. Lumped resistors are fixed in the outer ring where the inner patch is connected to the feeding network through metallic vias. Firstly, the basic unit cell of the surface is utilized as a dual-band EM absorber. Secondly, the same surface is utilized as a beam switching radiator. Each unit cell has two switchable feeding points which are connected to a single-pole double-throw (SPDT) switch designed on the bottom layer. The surface is symmetrical therefore the excitation of each unit cell at two feeding ports can produce a phase shift of 180 •. By properly selecting the feeding point of the four elements, the surface can generate sum-beams and difference-beams. The surface exhibit low radar cross section (RCS), high gain, and high efficiency. A prototype of × 4 elements array is manufactured and experimentally verified in an anechoic chamber.

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“…Different metaheuristic or their modification algorithms have been used like genetic algorithms [12], simulated annealing [13], differential evolution algorithm [14], bacterial foraging algorithm [15], plant growth simulation algorithm [16], Taguchi's and self-adaptive differential evolution [17], biogeography based optimization [18], bees algorithm [19], particle swarm optimization [20], [31], cuckoo Search [21], Seeker optimization algorithm [22], invasive weed optimization [23], harmony search algorithm [24], firefly algorithm [25], evolutionary search algorithm [26], differential search algorithm [27], cat swarm optimization [28], hybrid cuckoo search [29], backtracking search optimization algorithm [30] [32] states that there is no single metaheuristics which is suitable for solving all kinds of optimization problems. Therefore, looking for different competitive and efficient metaheuristics for linear antenna array synthesis is still a fascinating and open issue in this field of research.…”

Section: Introductionmentioning

confidence: 99%

Linear Antenna Array Pattern Synthesis Using Elephant Swarm Water Search Algorithm

Mandal¹

2019

IJIEEB

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Linear antenna array pattern synthesis using computational method is an important task for the electronics engineers and researchers. Suitable optimization techniques are required for solving this kind of problem. In this work, Elephant Swarm Water Search Algorithm (ESWSA) has been used for efficient and accurate designing of linear antenna arrays that generate desired far field radiation pattern by optimizing amplitude, phase and distance of the antenna elements. ESWSA is inspired by water resource search procedure of elephants during drought. Two different fitness functions for two different benchmark problem of linear antenna array have been tested for validation of the proposed methodology. During optimization, three types of synthesis have been used namely: amplitude only, phase only and position only control for all cases antenna array. The results show that ESWSA is very efficient process for achieving desired radiation pattern while amplitude only control performed better compare to the others two controlling process for all benchmark problems.

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Analysis of Linear Antenna Array for minimum Side Lobe Level, Half Power Beamwidth, and Nulls control using PSO

Cited by 40 publications

References 22 publications

Simulation and optimization of tuneable microstrip patch antenna for fifth-generation applications based on graphene

Simulation and optimization of tuneable microstrip patch antenna for fifth-generation applications based on graphene

An Integrated Switchable EM Absorber and Beam Switchable Radiator

Linear Antenna Array Pattern Synthesis Using Elephant Swarm Water Search Algorithm

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