Abstract
Various characteristics of electromagnetic waves propagating in two- and three-layer open-dielectric waveguide structures of cylindrical shape are studied. Parameters of wave components in separate areas of the waveguide are considered. Electrodynamic characteristics and frequency dependencies for several values of layer dielectric permittivity obtained during the study are analyzed. The corresponding graphs of dependencies are presented. The dependencies of the power flux density of transverse magnetic (TM) waves in two- and three-layer waveguide structures in the absence of field dependence on azimuthal angle are considered.
Highlights
IntroductionOf great interest is the study of the structure and characteristics of electromagnetic waves propagating in multilayer dielectric waveguides at different values of the relative dielectric permittivity of individual layers
Round waveguides are widely used in the development of SHF and EHF devices
Of great interest is the study of the structure and characteristics of electromagnetic waves propagating in multilayer dielectric waveguides at different values of the relative dielectric permittivity of individual layers
Summary
Of great interest is the study of the structure and characteristics of electromagnetic waves propagating in multilayer dielectric waveguides at different values of the relative dielectric permittivity of individual layers. The theory of multilayer metal-dielectric and dielectric waveguides, peculiarities of wave propagation in two- and three-layer waveguides are considered in the literature [3,4,5,6,7]. Of interest are the peculiarities of the behavior of electromagnetic waves in multilayer dielectric waveguides, in which the dielectric permittivity of the layers is different, that is, the ratio between them varies. To find the structure of the electromagnetic field and wave parameters in the waveguide it is necessary to obtain a dispersion equation, for which the system of Maxwell equations with the corresponding boundary conditions is solved. In order for the boundary conditions are satisfied at all points on the waveguide surface at any given time, the propagation constant (wave number) must be the same inside and outside the waveguide [6,7,8,9,10,11]
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