GET 110-2023 State Primary Standard for the units of complex permittivity within the frequency range of 0.1–178.4 GHz

The article presents a study into the measurement of dielectric parameters of materials. The study aims to examine promising high-precision methods for measuring the complex permittivity of low-loss materials within the decimeter wavelength range and a non-resonant method for measuring the dielectric parameters of materials characterized by increased dielectric losses. For measuring the complex permittivity of low-loss materials within the decimeter wavelength range, a resonance method of measurement in a coaxial resonator with an adjustable capacitive gap and a method of measurement in a dielectric-filled H 011 cavity resonator were developed. In order to measure increased dielectric losses of 10 −2 –10 −1 , a transmission line technique was developed using a non-resonant measuring transducer on the basis of a shielded dielectric waveguide, the specimen to be analyzed. The developed methods are applied in GET 110-2023 State Primary Standard for the units of complex permittivity within the frequency range of 0.1–178.4 GHz. The frequency range of the standard is 0.1–178.4 GHz; the reproduction range of relative permittivity is 1.2–500; and the reproduction range of dielectric loss tangent is 10 −8 –10 −1 . GET 110-2023 can be used to provide metrological support for dielectric control in the production of radio frequency cables, telecommunication equipment, electronic components, etc.