CUDA-Based Particle Swarm Optimization in Reflectarray Antenna Synthesis

Capozzoli, Amedeo; Curcio, Claudio; Liseno, Angelo

doi:10.7716/aem.v9i2.1389

Cited by 9 publications

(8 citation statements)

References 13 publications

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“…-partial diagram of the n-th vibrator at a wavelength diffraction factor of the bearing surface, which establishes the patterns of change in the shape of the radiation patterns of the grating (1), located in free space, due to the induction of surface currents of the cylinder [3,4], *is the sign of complex conjugation. When analyzing a lattice placed in free space, the factor is and the parts diagram (2) takes the form of a complex exponential (at and ).…”

Section: Mathematical Model and Calculation Methodsmentioning

confidence: 99%

“…hip antenna arrays, the dimensions of elements that do not exceed the wavelength of the operating range, are used in radio-electronic complexes on unmanned aerial vehicles. According to [1,2], due to the possibility of matching antenna elements with distribution (feeding) lines in a wide frequency band, due to the absence of sign alternating reactive components of input impedances and significant radiation resistance [3,4], arrays of this type are used:…”

Section: Introductionmentioning

confidence: 99%

“…At the same time, when designing whip antenna systems, it is necessary to take into account that the type of their radiation patterns and the values of the directivity coefficients significantly depends on the shape, dimensions, and electrical properties of the bearing surfaces [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

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General Approaches to Solving Problems of Analysis and Synthesis of Directional Properties of Antenna Arrays

Islamov

Humbataliyev

2022

AEM

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The work carried out the calculation and synthesis of antenna arrays used in radio-electronic complexes on unmanned aerial vehicles. The analytical model is designed to find asymptotic estimates of the polarization components of the electric field of the grating in the far zone of the carrier surface; the results obtained with its use are the initial data for constructing a technique for the numerical solution of a boundary value problem for a grating on a carrier surface in the CST MWS electrodynamic simulation environment. The synthesis of gratings with the maximum achievable coefficient of directional action is carried out with the control of radiation patterns at a given set of angles. A two-mirror antenna system has been calculated. It is shown that with an increase in the number of re-reflections taken into account, the convergence of the result for the calculated characteristics of the antenna is observed. To test the proposed method, the same antenna was calculated using the integral equation method. The comparison showed a high degree of agreement between the results obtained by two different methods. The results of the simulation based on a software algorithm designed to quantify the input matching at the input of a multichannel frequency-scanning antenna array power divider are presented. It was found that when performing wide-angle scanning in a relative frequency band of more than a few percent, the disadvantage of the known method for eliminating the normal effect is a sharp deterioration in matching in the lower and upper frequencies of the operating range. A new method is proposed based on an automated iterative process of optimizing the divider geometry, which makes it possible to obtain an acceptable match over the entire operating frequency band. The feasibility of switching from a serial power divider construction scheme to a series-parallel scheme is analyzed for wide-angle scanning in a relative frequency band of about 5%.

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Section: Mathematical Model and Calculation Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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General Approaches to Solving Problems of Analysis and Synthesis of Directional Properties of Antenna Arrays

Islamov

Humbataliyev

2022

AEM

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“…A number of reflectarray antennas have been developed since the 1980s. It has achieved wide applications and has many advantages, such as being of low profile and volume, surface-mountable and easy to deploy [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]. In modern wireless communication system such as in 5G/6G base stations or point-to-point communication systems, reflectarray antennas with plane structures can be installed conveniently on building walls or ceilings to reflect beams for covering different areas, especially for blind spots.…”

Section: Introductionmentioning

confidence: 99%

FSS Sandwiched Dual-Frequency Reflectarray for Mobile Communication Applications

Mao

Zhang

2023

Electronics

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Sandwiched frequency selective surface (FSS) is proposed as an additional reflection surface for a dual-frequency reflectarray system. The range of reflection phase for a reflectarray depends on the substrate thickness sensitively. Usually, a tradeoff between the smooth linear level and the wide reflection phase range is needed, especially for a dual-frequency system. By inserting an FSS between the ground plane and the reflecting element layer, a selective plane for the dual-frequency band is provided. For the higher frequency band, the FSS layer is a reflection plane. For the lower frequency band, it is transparent and the reflection plane is changed into the metal ground plane. A dual-band reflectarray with a scattering angle of 30 degrees is simulated and measured to validate this concept.

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“…The design optimization of Reflectarray Antennas (RAs) is a clear example of this problem: in fact, these systems are composed by hundreds or even thousands of elements that can be optimized, leading to a very large non-linear multimodal optimization problem [4]. RAs are a group of powerful and efficient high-gain antennas; they are highly adopted in many different conditions thanks to their numerous advantages, such as low profile, low cost, good radiation performance, and ease of manufacturing [5].…”

Section: Introductionmentioning

confidence: 99%

Optimization Environment Definition for Beam Steering Reflectarray Antenna Design

et al. 2021

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Reflectarray antennas are low-profile high-gain systems widely applied in the aerospace industry. The increase in their application is leading to the problem of getting more advanced performance while keeping the system as simple as possible. In these cases, their design cannot be conducted via analytical methods, thus evolutionary optimization algorithms are often implemented. Indeed, the design is characterized by the presence of many local minima, by high number of design variables, and by the high computational burden required to evaluate the antenna performance. The purpose of this paper is to develop, implement, and test a complete Optimization Environment that can be applied to achieve high scanning capabilities with a reflectarray. The design of the optimization environment has been selected to be flexible enough to be applied also with other different algorithms.

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CUDA-Based Particle Swarm Optimization in Reflectarray Antenna Synthesis

Cited by 9 publications

References 13 publications

General Approaches to Solving Problems of Analysis and Synthesis of Directional Properties of Antenna Arrays

General Approaches to Solving Problems of Analysis and Synthesis of Directional Properties of Antenna Arrays

FSS Sandwiched Dual-Frequency Reflectarray for Mobile Communication Applications

Optimization Environment Definition for Beam Steering Reflectarray Antenna Design

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