MR2: Cavity Resonance Absorbers

MAST Technologies’ Cavity Resonance Absorber product series is a thin magnetically loaded sheet stock having loss at microwave frequencies, while maintaining the desirable characteristics of elastomeric binders.  Cavity Resonance Absorbers are designed to exhibit high loss and are intended to be applied to metal surfaces inside microwave cavities to reduce the Q of the cavity.  Cavity Resonance Absorbers attenuate energy at normal and high angles of incidence at frequencies from 1 GHz to 20 GHz.  The standard elastomer is silicone, but other elastomer formulations are available.

Electrical Performance:
The performance plot below shows the performance of several of our tuned frequency materials.

Typical Applications
Specular Return (RCS)
Side/Back Lobe Reduction
Aircraft Seals
Instrument Housings
Discrete Frequency
Cavity backed antennas

 

HIGH LOSS PRODUCTS (click for product page)

Thickness (in/mm) Part Number Elastomer Frequency
0.040/1.0 MR42-0007-20 Silicone 0.8-18 GHz
0.080/2.0 MR42-0008-20 Silicone 0.5-18 GHz

STANDARD PRODUCTS (click for product page)

Thickness
(in/mm)		 Part Number Elastomer Frequency Part Number Elastomer
0.010/0.25 MR21-0012-20 Silicone 16 – 26 GHz
0.020/0.5 MR21-0001-20 Silicone 14 – 18 GHz MR22-0001-00 Nitrile
0.030/0.7 MR21-0002-20 Silicone 13 – 17 GHz MR22-0002-00 Nitrile
0.040/1.0 MR21-0003-20 Silicone   9 – 12 GHz MR22-0003-00 Nitrile
0.050/1.2 MR21-0004-20 Silicone   6 – 11 GHz MR22-0004-00 Nitrile
0.060/1.5 MR21-0005-20 Silicone   5 – 9   GHz MR22-0005-00 Nitrile
0.070/1.8 MR21-0006-20 Silicone   4 – 7   GHz MR22-0006-00 Nitrile
0.080/2.0 MR21-0007-20 Silicone   3 – 7   GHz MR22-0007-00 Nitrile
0.090/2.3 MR21-0008-20 Silicone   2 – 5   GHz MR22-0008-00 Nitrile
0.100/2.5 MR21-0009-20 Silicone   2 – 5   GHz MR22-0009-00 Nitrile
0.125/3.2 MR21-0010-20 Silicone   1 – 3   GHz MR22-0010-00 Nitrile