Surface Currents

• An incident wave will excite surface currents (creeping waves) on a conductive surface.
• Due to non-specular behavior, a surface current can propagate along the surface.
• When the surface current encounters a discontinuity on the surface (break or gap) it can radiate.
• Important to absorb the surface currents as they propagate.
• ECCOSORB^® LS is a series of absorbers with different dielectric properties to absorb surface currents over a wide range of frequencies.
• ECCOSORB^® GDS and ECCOSORB^® MCS are magnetic absorbers which attract and dissipate the magnetic portion of the surface wave.
• Surface wave absorbers act as a waveguide or conduit to guide and attenuate waves as they propagate.