The importance of continuous and homogeneous gasket conductivity up to 40 GHz

Due to the impact of higher and higher frequencies, shielding gaskets at frequencies above 1 GHz are needed for the so called `in-circuit´ and `on board´ shielding applications. In this paper, the importance of a continuous conductivity between all parts of an enclosure, and the homogeneous distribution of the conductivity in the frequency range up to 40 GHz are demonstrated, using a stripline methodology for characterising the Shielding Effectiveness (SE) of conductive gaskets.