Development of Closed-Form Formula for Quick Estimation of Antenna Factor

Alijani, Mohammad G. H.; Sheikh, Shahin; Kishk, Ahmed A.

doi:10.23919/eucap51087.2021.9411008

Cited by 4 publications

(2 citation statements)

References 8 publications

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“…Most of the time, analysis of many practical problems in engineering is very difficult based on the first principle. [1][2] On the other hand, simulation of physical structures using the full-wave simulators is commonly time-consuming, due to the complexity of them. 3 Moreover, to study of a complex structure in the presence of nonlinear components, a hybrid combination of frequency and time domain are necessary.…”

Section: Introductionmentioning

confidence: 99%

Development of a new method for modeling a physical system in a rational expression

Sedaghat

Firouzeh

Aliakbarian

2022

Int J RF Mic Comp-Aid Eng

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The presented paper shows a new method for modeling of a physical system in a rational expression. The method is based on a hybrid combination of the conventional least square method (LSM) and a robust recursive procedure. In the first step of the method, a sampling function is employed to establish a system of linear equations. Then, the QR decomposition method and a very fast iterative technique are simultaneously used to determine the unknown parameters. Also, it is shown that by regarding a scalar gain parameter, the stability of the final model can be controlled. To verify the performance of the presented method, several theoretical and practical examples are examined and the obtained results are compared with the simulation and measurement data.

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Section: Introductionmentioning

confidence: 99%

Development of a new method for modeling a physical system in a rational expression

Sedaghat

Firouzeh

Aliakbarian

2022

Int J RF Mic Comp-Aid Eng

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show abstract

“…Full detail modeling of many practical structures in engineering fields, such as solving Maxwell's equations at the system level, is very difficult based on the first principle [1]. This is because the complete simulation of these structures is highly time-consuming and needs a large amount of memory [2,3]. In some cases, the complexity is due to the electrical size of the structure leading to an unreasonable number of unknowns.…”

Section: Introductionmentioning

confidence: 99%

Development of a Non-Iterative Macromodeling Technique by Data Integration and Least Square Method

Sedaghat

Firouzeh

Aliakbarian

2021

IJE

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Pattern synthesis of linear and ring arrays with minimum number of elements using FFT and Bessel transformation

Boozari

Khalaj‐Amirhosseini

2022

Sci Rep

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In antenna engineering, to reduce the final cost of array design, it is often necessary to design an array with the minimum number of elements. So, proper selection of the number of array elements and the location of the elements are two important factors in array design. In this work, a novel analytical approach for designing an array with optimal parameters is described. The Nyquist–Shannon sampling theorem is used to determine the number of array elements and the distance between them. The array's excitation coefficients are then determined using the recursive least square approach and the Bessel transform of the array factor. It is also demonstrated that the introduced procedure can be extended to include the concentric ring arrays. Several practical arrays are evaluated to verify the performance of the suggested approach. The results show that the introduced approach is a good candidate for designing practical arrays with acceptable accuracy.

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Development of Closed-Form Formula for Quick Estimation of Antenna Factor

Cited by 4 publications

References 8 publications

Development of a new method for modeling a physical system in a rational expression

Development of a new method for modeling a physical system in a rational expression

Development of a Non-Iterative Macromodeling Technique by Data Integration and Least Square Method

Pattern synthesis of linear and ring arrays with minimum number of elements using FFT and Bessel transformation

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