FIELD: electrical engineering.
SUBSTANCE: invention relates to electrical engineering, in particular to a method of determining dielectric permeability of anisotropic dielectrics, and can be used in quality control of solid dielectric materials and coatings. Method for measuring dielectric permittivity of materials involves irradiating a dielectric sample with an electromagnetic wave due excitation of an asymmetric wave H01p in a circular waveguide, in which a dielectric sample in the form of a plate is placed, orthogonal to the longitudinal axis of the circular waveguide, wherein the dielectric sample is placed on a metal substrate and sequentially excite therein radial surface electromagnetic wave at the two close wavelengths oscillator λ1 and λ2 with the proviso that the λ(2-λ1)/λ1<<1, measuring attenuation coefficient of each of their two surface waves over the dielectric sample at points along the entire circumference of the circle, with a center coinciding with the excitation point of radial surface waves, with step depending on number of measurement points of attenuation coefficient, along length of circle for each wavelength, maximum and minimum values of attenuation coefficients of direction of two main axes of transverse anisotropy of analyzed material are found and determining the permittivity values of the transverse components of the permittivity tensor εx, εy and its normal component εz by solving the dispersion equation system.
EFFECT: high accuracy of measuring transverse anisotropy of dielectric materials is technical result of invention.
1 cl, 2 dwg
