Validation of a Method for Predicting Anechoic Chamber Performance: A Technique That Uses Polynomial Approximations for RF Absorber Reflectivity

Indoor antenna ranges must have the walls, floor, and ceiling treated with a radio-frequency (RF) absorber. The normal incidence performance of the absorber is usually provided by the manufacturer of the material—but the bistatic or off angle performance must also be known. Recently, a polynomial approximation was introduce.