RF Absorber

Why is it important to use high quality RF absorber inside a Faraday cage or RF Shield Box?

RF/microwave absorber materials are often added to circuits and RF Shield Box interiors to suppress, eliminate or minimize unwanted reflections within the shield box as unwanted reflections could affect obtaining reliable and repeatable test results when performing OTA(Over-the-Air) testing. CTS uses a high quality carbon loaded and multilayer broadband absorber which provides high levels of loss at normal and off normal angles of incidence.