A.N. Yakimov – Dr. Sc. (Eng.), Professor, Department of Designing and Technology of Electronic and Laser Means, Saint-Petersburg State University of Aerospace Instrumentation

E-mail: y_alder@mail.ru

We consider the problem of discrete representation of the radiating surface of the microwave antenna with a complex spatial configuration and modeling of radiation of this antenna by the finite element method. The proposed partition with uniform step most of the radiating surface, allowing you to control the size of the elements of the partition by the whole radiating surface, and to achieve better approximation accuracy at the same computational cost. For a mirrored parabolic antenna constructed of geometric and electrodynamic model and calculation of the chart orientation at different steps of the sampling surface, allowing you to select the step providing the required accuracy. The results show that the proposed finite element mathematical model can be used in the design of antennas with complex spatial configuration, and to analyze the effect on the radiation characteristics of antennas of different deformation effects.

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