Patent ID: 7889134
Filing Date: 2011-02-15
Classification: H01P,H05K

Abstract:
1. An apparatus for electromagnetic noise suppression, comprising: a first conductive plate; a second conductive plate; an array of first conductive patches oriented substantially parallel to the first conductive plate and spaced a first distance therefrom; an array of second conductive patches oriented substantially parallel to the second conductive plate and spaced a second distance therefrom; an array of first vias, in direct electrical contact with the first conductive plate, and in direct electrical contact with a respective second conductive patch; and an array of second vias, in direct electrical contact with the second conductive plate, and in direct electrical contact with a respective first conductive patch, wherein lengths of the first vias and the second vias and the first distance and the second distance are chosen so that the apparatus suppresses electromagnetic energy at frequencies of interest.