The polypropylene (pp) based microwave absorber looks similar to our hybrid pyramid absorber 3700 on a polypropylene (pp) basis, but this absorber is used in the high-frequency range. The absorber is designed for antenna measurements in anechoic chambers and provides solutions for Antenna Pattern Measurement (APM), Antenna Test Ranges (ATR), Radar Cross Section (RCS), and Electronic Warfare Testing (EWT) chambers.