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High Loss UHF and Microwave Magnetic Sheet Absorber

High Loss UHF and Microwave Magnetic Sheet Absorber

C-RAM FF-2 is a thin, ferrite filled, silicone microwave absorber rubber sheet stock which has high magnetic loss at UHF and microwave frequencies up to X-band. It is applied to metal surfaces to attenuate RF surface currents. It can be used to modify antenna patterns, lower the Q of a cavity, act as a transmission line attenuator, and modify the radar cross section of targets.

C-RAM FF-2 is thin and elastomeric, so it will conform to curvatures of the substrate. It is not electrically conductive and has high dielectric strength. It is a soft material and is readily die-cut or cut with a razor. Being based on a silicone rubber, it will withstand wide temperature ranges, and survive outdoor exposure.

C-RAM FF-2 has a high magnetic loss tangent from about 500 MHz to 10GHz. It will perform well in the 900 MHz cellular frequencies. In the UHF range, C-RAM FDSS will perform in an equal fashion; it has different magnetic filler which exhibits high loss tangents at UHF frequencies, but C-RAM FF-2 should be used if absorption above 2 GHz is also desired.

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