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Theoretical and experimental study of scattering characteristics of the microstrip array with nonstationary non-linear loads

Abstract

Theoretical and experimental study of scattering characteristics of the microstrip array with nonstationary non-linear loads

Semenikhina D.V., Demshevskiy V.V.

Incoming article date: 16.09.2014

By means of Lemma Lorentz solution to the problem of excitation of an infinite periodic microstrip array with non-linear loads (NN), whose parameters vary in time, was obtained. For the formation of a system of integral equations nonlinear boundary conditions of impedance type, arising from polynomial representation of V-I characteristics of non-linear loads was applied. Numerically patterns in dependence of the reflectance of such a array at combination frequencies on the electrical parameters of loads were identified. The experimental data which confirm possibility of control with levels of combinative frequency components by frequency change and amplitude of voltage pump are given.

Keywords: microstrip structure, non-linear loads, spectrum of the reflected signal, combinational harmonics, parametric excitation