The AEW-18 from Microwave Vision Group is a Microwave Absorber with Absorption 21 dB @ 500 MHz, 26 dB @ 1.0 GHz, 42 dB @ 3.0 GHz, 47 dB @ 6.0 GHz, 47 dB @ 10.0 GHz, 47 dB @ 15.0 GHz, 47 dB @ 18.0 GHz, Power 0.5 Watt/in2, Weight 12 lbs (5.4 Kg), Operating Temperature 70 Degrees F +/- 10 Degrees (21 Degrees C +/-3 Degrees ). More details for AEW-18 can be seen below.