Abstract
Methods for measuring the reflection coefficient of non-ionized electromagnetic radiation from sheet materials are considered. Horn antennas with square apertures were used for measurements. The maximum dimensions of the irradiation spot are determined depending on the distance to the irradiating horn antenna for different frequency ranges. Two methods of measuring the reflection coefficient of radio waves from sheet materials are described. The first method is based on the use of two antennas for irradiating the material and for receiving the reflected signal. The second method is based on the use of a measuring line. In this case, one antenna is used. A measuring installation was made.
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