Eccosorb AN

Frequency Key features Thickness Service T° In or outdoor
600 MHz and above UL 94 HBF rated, does not support fungal growth per MIL-STD-810E, 0.15W/cm2 power handling 0.6 cm - 11.4 cm 90° C In
Lightweight, flexible, broadband, carbon loaded foam laminate sheets

Eccosorb AN is a series of lightweight, free space, multi-layer, broadband microwave absorbers. Products are made from polyurethane foam that is treated with carbon and assembled in a laminate construction to generate a controlled conductivity gradient. Each product in the series has its own low end cut-off frequency that forms the basis of selection based on operating frequency. Reflectivity reduction is at least 17 dB down for normal incident energy with the correct choice of Eccosorb AN absorber.

In situations where the absorber will come in contact with water, fuel, hydraulic fluids, or will be used outdoors, Eccosorb AN-W is recommended. 

Examples for use are radar antenna nacelles, anechoic enclosures, antenna or target test mounts in radar ranges, and inside or outside horn antennas.  Eccosorb AN can also be used to produce desired modifications in antenna patterns such as the reduction of side-lobes and back-lobes.  Eccosorb AN is equally effective against linear, elliptical, or circular polarization and relatively insensitive to incidence angles out to 70 degrees.