FAT100 series ferrite absorbing plates of П100*100*6,3 and П100*100*5.5 type are intended to make an echo-less chambers and overhearing protected rooms. In using, plates are fixed usually in 6 x 6 pcs blocks on metallic or plywood sheets by means of metalic screws installed into central threaded openings of plates. Assembled blocks are installed over whole internal surface of echo-less chamber or of room being protected.
Advantage of using ferrite materials as compared with other types of absorbers are high mechanical strength combined with simplicity of installation and also an incombustibility and a high stability of electromagnetic parameters.
Echo-less chamber of 7 m*3 m*3 m volume made on FAT series ferrite plates:
Attenuation of reflected signals on using FAT100 series ferrite plates in frequency range from 10 MHz to 1 GHz: