Experimental Bench for Measuring Radiophysical and Electromagnetic Properties of Materials at High Temperatures

An experimental bench has been developed and created for measuring in free space radiophysical properties and electromagnetic parameters of samples of materials and coatings under high-temperature effects up to $1200^{\circ}C$. The bench makes it possible to measure the frequency dependences of reflection and transmission coefficients, as well as complex dielectric permittivity of samples in the frequency band from 3 to 24 GHz. To demonstrate the capabilities of the experimental bench, samples of various materials, including those with known dielectric properties, were measured in a wide microwave frequency band, and the temperature dependences of their radiophysical characteristics are also presented.