M. M. Migalin1, V. A. Obukhovets2
1, 2 Southern Federal University (Taganrog, Russia)

1 migalin@sfedu.ru

Optimization algorithms are widely used for solving problems of antennas and microwave devices constructive synthesis. Printed antennas are used as radiators for telecommunication systems due to their compactness, low weight and easy integration with other elements. This paper is devoted to the use of a genetic algorithm in the problems of computer-aided design of multilayer microstrip antennas. The developed program in MATLAB combines the computational capabilities of the mathematical modeling environment with the CST CAD for electromagnetic modeling and provides the formation of the individuals genetic code population. This programming code is an instrument for the automatic construction of the appropriate antenna structures and for the numerical modeling results analysis. It also provides the possibility of the implementation of genetic crossing and mutation operators for the patch antennas designing with the required directional parameters in a required frequency band.

Purpose of the research is to develop a method of solving the problems of constructive synthesis of multilayer printed antennas in the MATLAB – CAD CST using a genetic algorithm, as well as the study of the influence of initial conditions on the results of synthesis.

A set of programs has been implemented in the MATLAB environment, which provides joint operation of the CST electromagnetic solver and the MATLAB mathematical apparatus for solving the problems of multilayer microstrip antennas constructive synthesis. The developed technique has been tested on the examples of constructive synthesis of multilayer emitters. The synthesized emitter ensured the transfer of the operating frequency band of the basic design in accordance with the specified requirements. It has been established that the initial population has little effect on the results of synthesis.

The proposed approach provided the possibility for creating powerful tools for automation of microstrip antennas due to the integration of the capabilities of CST and MATLAB software tools. This technique can be used for the synthesis of frequency-selective surfaces, fairings and radar-absorbing coatings.

Migalin M.M., Obukhovets V.A. Constructive synthesis of multilayer printed antennas using an evolutionary algorithm. Antennas. 2025. № 6. P. 72–80. DOI: https://doi.org/10.18127/j03209601-202506-08 (in Russian)

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