Investigation of Dielectric Coating Influence on the Equivalent Surface Impedance of an Infinite Periodic Array of Slot Impedance Loads Based on Cavity with an Equilateral Triangle Cross-Section

Abstract

The 2D-problem of determining the equivalent surface impedance of an infinite array of slot impedance loads with a dielectric coating is considered. Each array element is based on a cavity with an equilateral triangle cross-section. The solution of the problem was carried out by the method of integral equations was calculated by the Krylov-Bogolyubov method. Numerical results are shown for equivalent surface impedance relationships on construction geometric dimensions, an electromagnetic wave incidence angle, and a dielectric layer thickness. Comparative analysis of obtained relationships with the characteristics of a similar array without dielectric coating was conducted.