Abstract
Eigenwaves of a homogeneous electromagnetic crystal (EMC) that represents a 2D array of metal cylinders with gaps containing lumped elements (LEs) forming a parallel LC circuit are studied. The array of cylinders with LEs is installed inside a planar waveguide (PW). Variations in the parameters of the EMC eigenwaves due to variations in the capacitance are analyzed. The problem of eigenwaves is solved with the aid of numerical electrodynamic simulation in the HFSS system using periodic boundary conditions. Dependences of the main technical parameters, in particular, passband on the geometrical parameters of the structure and circuit parameters are considered. It is shown that a decrease in the height of the PW filled with a dielectric material can be used to improve the EMC quality parameters. Excitation of a finite-width EMC layer is considered. It is shown that the main results obtained for the regime of eigenwaves are proven by the solution to the problem of the EMC excitation.
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