Stryzhachenko O. Electrodynamics of waveguide junctions with anisotropic filling and measurement of electrical crystal parameters

Object of study: the interaction process of the electromagnetic field with a substance in complicated composite waveguide and resonator structures. The purpose of the thesis: the development of the physical principles, mathematical tool and measuring complex for the definition of the electrical characteristics of wide class isotropic and anisotropic materials without their destruction, and the development of new devices on the basis of anisotropic materials. Research methods: the theoretical methods are based on the systems of linear algebraic equations that are got from Maxwell's equations with the use of the modified mode machine method (method of intersecting volumes); the experimental methods are based on the resonant method of research of dielectrics on microwaves. New theoretical and practical results: the scientific problem of the day is decided - the measurement of electrophysics parameters of isotropic and anisotropic materials without their destruction on microwaves on the basis of the special devices as a waveguide junctions. The new technique of measurement of the components of permittivity tensor of anisotropic crystals, main directions, and the dielectric loss along the main directions, the optical axes of optically clear and opaque of uniaxial crystals without their destruction on microwaves on the basis of the waveguide junctions is offered.