ECCOSORB HX is a flat-top reinforced hollow pyramidal absorber which has been optimized for application in large shielded semi-anechoic chambers used for radiated emission testing at 10 m distance in the frequency range 30 MHz – 18 GHz where the chamber has to meet the volumetric NSA (Normalised Site Attenuation) specification according to ANSI C63.4, CISPR 16 or EN 50147-2.

Application:

This class of absorber has been developed specifi cally for radiated emission test chambers, it is also useful in other applications such as radiated susceptibility testing according to EN 61000-4-3 and applications at very low frequencies. Compared to standard pyramidal absorbers of similar height, ECCOSORB HX shows better reflectivity performance in the critical low-frequency range (from 30 MHz up) of EMC/EMI test chambers. However, the absorber still performs more than adequately at higher frequencies up to at least 18 GHz.