V. V. Komarov – Dr.Sc. (Eng.), Professor, Department of Radio Electronics and Telecommunications, Yuri Gagarin State Technical University of Saratov E-mail: vyacheslav.komarov@gmail.com

A. A. Nevsky – Postgraduate Student, Yuri Gagarin State Technical University of Saratov; Engineer, Mytishinskiy Scientific-Research Institute of Radio Measuring Instruments

E-mail: nevskiy.aa@mail.ru

The two-dimensional numerical model of a local piece of metal grating has been built for mathematical modeling of microwave and terahertz radiation scattering on the one-dimensional periodic structures. Influence of sizes of grating with stepped cross section shaped lamels on its transmission characteristics for the case of the E-polarized plane electromagnetic wave incidence has been determined. Comparison analysis of mesh structures with stepped and rectangular lamels has been carried out.

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