Rectangular Coaxial Line for RF Absorber Measurements

The work is devoted to the development of a measuring setup for matching two types of absorbers: a pyramidal absorber made of foamed polyurethane foam and ferrite tiles in the megahertz frequency range. A method for applying the obtained measurement data to implement the matching of series-located absorbers is shown. A new type of radio-absorbing material consisting of sheets with a certain resistance value that does not change from layer to layer is also proposed, and the accuracy of measurements and processing of measured data in a square coaxial measuring transmission line is evaluated.