Patent ID: 7342471
Filing Date: 2008-03-11
Classification: H01P,H05K

Abstract:
1. An apparatus for suppressing the propagation of electromagnetic waves comprising: a first conducting plane; and a second conducting plane, thereby forming a parallel plate waveguide; a first plurality of conducting pads disposed in a substantially periodic array in the region between the first and second conducting planes; a second plurality of conducting pads disposed in substantially periodic array in the region between the first and second conducting planes; a plurality of conducting vias that couple the first conducting plane to each pad of the first plurality of conducting pads and that couple the second conducting plane to each pad of the second plurality of conducting pads; wherein pairs of conducting pads, selected respectively from the first and second plurality of conducting pads, are facing each other so as to affect their mutual capacitive coupling, thereby forming electromagnetic resonators; and wherein preselected reactances of the resonators effect a desired electromagnetic stop band within the waveguide.