Author

# I B Badriev

Bio: I B Badriev is an academic researcher. The author has contributed to research in topics: Optimization problem & Microstrip antenna. The author has an hindex of 1, co-authored 1 publications receiving 7 citations.

Topics: Optimization problem, Microstrip antenna

##### Papers

More filters

••

01 Feb 2019

TL;DR: The problem of fast designing of a well-matched symmetrical four-tooth-shaped microstrip antenna at frequency of 2.44 GHz is considered and regression models for wavelength, resistance and bandwidth are used to solve the problem.

Abstract: The problem of fast designing of a well-matched symmetrical four-tooth-shaped microstrip antenna at frequency of 2.44 GHz is considered. To solve the problem, we use regression models for wavelength, resistance and bandwidth. The optimization problem for finding the geometrical parameters of the antenna radiator is formulated by using these models. In the first step of approximation, the antenna is obtained as a solution to the optimization problem. In the next step, the geometry of the radiator is refined so as the base frequency of the antenna is closer to 2.44 GHz.

9 citations

##### Cited by

More filters

••

01 Nov 2019TL;DR: In this article, a monopole microstrip antenna with the radiator having two pairs of rectangular teeth of different sizes is considered and the influence of the size of the teeth and the position of the cutouts between them on the electrodynamic characteristics of the antenna at the first and second resonance frequencies is studied.

Abstract: A monopole microstrip antenna with the radiator having two pairs of rectangular teeth of different sizes is considered. The influence of the size of the teeth and the position of the cutouts between them on the electrodynamic characteristics of the antenna at the first and second resonance frequencies is studied. Based on the results of the analysis, the approach is proposed to optimize the electrodynamic characteristics of this antenna type for given parameters. The practical application of this approach in the designing the four-tooth-shaped dual-band antenna for Wi-Fi applications is shown.

7 citations

••

TL;DR: In this article, a symmetrical tooth-shaped radiator is obtained from a rectangular radiator by adding small symmetrical rectangular cutouts on its two sides, and regression models are constructed for each type of the antenna.

Abstract: Printed monopole antennas with a rectangular radiator as well as
with a symmetrical tooth-shaped radiator are considered. The
tooth-shaped radiator is obtained from a rectangular radiator by
adding small symmetrical rectangular cutouts on its two sides. The
antennas with four-, six- and eight-tooth-shaped radiators are
considered. For the antennas, the influence of the radiator
geometry parameters on the two base resonance frequencies is
studied. The common features and characteristics of the
dependences of the resonances on the radiator parameters are
revealed for the considered tooth-shaped antennas. Regression
models are constructed for each type of the antenna. In the
obtained models, the values of the two base resonances are
functions of the length and width of the radiator as well as of
the depth of rectangular cutouts on it. The designing of dual-band
printed monopole tooth-shaped antennas for various numbers of
cutouts on the radiator is proposed. For the design of the shape
of the radiator antennas, regression models are used, which allow
to obtain the parameters of the radiator for given resonance
frequencies. Examples of obtained antennas with various numbers of
teeth are given. Conclusions about the applicability of antennas
of this type for operation on two bands are given.

4 citations

••

01 Sep 2020TL;DR: The work’s goal is to establish the dependence of the base frequency on the dimension of the curve forming the antenna arm of the Koch type, and it is concluded that for the second and third iterations, the best correlation is a correlation between the base Frequency and the Higuchi dimension.

Abstract: A dipole wire antenna of the Koch type is considered. The antenna consists of a wire dipole with symmetrical arms with respect to the feed point with the geometry similar to the Koch prefractal. The curves forming the arms differ from the classical Koch fractal only by the position of the central vertex. The work’s goal is to establish the dependence of the base frequency on the dimension of the curve forming the antenna arm. Various dimensions as characteristics of the curve are considered. The dimensions are Minkowski dimension, information dimension, correlation dimension and Higuchi fractal dimension. The algorithm to calculate the Higuchi dimension for our curves is adapted. Also, algorithms for calculating the other dimensions are described. Relationships between the base frequency of the Koch-type wire dipole and the dimensions are explored. The correlation analysis for the first three Koch-type prefractals is carried out. The values of all correlation coefficients between the base frequency and the considered dimensions are given in the tables. It is concluded that for the second and third iterations, the best correlation is a correlation between the base frequency and the Higuchi dimension. The optimal one-parameter regression models for the base frequency in the case of the second and third iterations are constructed. The obtained regression model for the second iteration approximates the frequency values with an error of 1.17%. The model for the third iteration approximates the frequency values with an error of 1.46%.

4 citations

••

TL;DR: Numerical results are presented for the problem of diffraction by a rectangular screen, as well as by screen octagonal shape and the analysis shows that the method of moments implementation by GPU significantly improves the performance of the algorithm for solving theproblem of electromagnetic wave Diffraction by the flat metal screens.

Abstract: The problem of electromagnetic wave diffraction by a flat convex screen of arbitrary shape is considered. The numerical solution for the problem is obtained by the method of moments using the parallel programming technology CUDA. As basic and testing functions RWG functions are used. To construct the corresponding RWG elements on CUDA, a simple and fast algorithm of triangulation for a convex screen with an arbitrary boundary is developed. Numerical results are presented for the problem of diffraction by a rectangular screen, as well as by screen octagonal shape. The results obtained for the rectangle are in good correspondence with the results published in previous works. A comparative analysis of the running time of sequential and parallel algorithms is presented. The analysis shows that the method of moments implementation by GPU significantly improves the performance of the algorithm for solving the problem of electromagnetic wave diffraction by the flat metal screens.

2 citations

••

01 Sep 2020TL;DR: An approach to design using regression models of a tooth-shaped antenna for the desired wireless network parameters is presented and optimization problems are constructed and numerically solved, which allows to quickly determine the optimal values of the geometric parameters of the tooth- shaped radiator.

Abstract: The design of a symmetrical six-tooth-shaped monopole microstrip antenna is considered. The effect of rectangular cutouts on the radiator and the length and the width of the radiator on the reflection coefficient of the base frequency antenna is studied. A nonlinear regression model with good accuracy is constructed for this characteristic. An approach to design using regression models of a tooth-shaped antenna for the desired wireless network parameters is presented. Optimization problems are constructed and numerically solved, which allows to quickly determine the optimal values of the geometric parameters of the tooth-shaped radiator. The application of this approach to the design of a six-tooth-shaped single-band antenna for Wi-Fi applications is demonstrated.

1 citations