V.I. Ponomarenko – Dr.Sc.(Phys.-Math.), Professor, Department of Experimental Physics,  V.I. Vernadsky Crimean Federal University (Simferopol)

E-mail: vponom@gmail.com

I.M. Lagunov – Senior Lecturer, Department of Experimental Physics, 

V.I. Vernadsky Crimean Federal University (Simferopol) E-mail: lagunov.igor@gmail.com

Considered radar absorbing structure in the form of flat resistive lattice squares arranged in a nondispersive dielectric layer lying on a metallic mirror. Plane electromagnetic wave is incident on the structure is normal. Given the periodicity of the structure, diffraction scattering problem is equivalent to TEM Floquet-wave channel. The latter is reduced to the solution of an infinite set of linear algebraic equations for the elementary currents in a square surface, are regarded as sources of excitation of all channel types Floquet waves. The problem of optimization of the frequency dependence of the reflection coefficient of this structure, the objective function is the minimum value of the maximum reflectance in a predetermined wavelength range. The advantage of this structure compared with known radar absorbing structure of the same thickness on the basis of a continuous resistive film disposed in the dielectric layer.

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