Annotations languages:

** Description:** This paper is a continuation of work [1] and it is devoted to computer modeling of diffraction of H-polarized electro magnetic waves on a grate made of perfectly conducting bars rectangular in section. The main thesis of this research is the statement that the key (base) model of the structure in rigorous mathematical theory is a grate made of perfectly conducting bars rectangular in section and not a grate made of strips that was stated until now.

**
Keywords:
** diffraction, diffraction grate, computer modeling, polarization, resonance propagation of waves

Zholtkevich, G.N., Khoroshun, V.V. and Khokholkov, V.B. (2009), “Kompiuternoe modelirovanie difraktsii elektromagnitnykh voln na reshetke iz idealno provodiashchikh brusev priamougolnogo poperechnogo secheniia (sluchai H-poliarizatsii)”,