Patent ID: 6127906
Filing Date: 2000-10-03
Classification: H01P,H03H

Abstract:
Modular thin film filter apparatus comprising:a) a signal layer including a plurality of distributed impedance signal conductors deposited on a first surface of a first dielectric substrate in displaced parallel registry to each other, wherein each signal conductor terminates at one end at a first capacitor node, wherein a first ground strip conductor borders said plurality of signal conductors, wherein each signal conductor terminates at an opposite end at the first ground strip conductor, wherein a second surface of said first substrate includes a plurality of second capacitor nodes that lie directly opposite the first capacitor nodes and further includes a first ground plane conductor that substantially covers the remainder of the second surface;b) a cover layer including a first surface of a second dielectric substrate having a second ground plane conductor that substantially covers the first surface in a region that overlies the plurality of signal conductors and a second surface opposite the first surface that includes a plurality of second ground strip conductors that lie directly opposite the second ground plane conductor;c) a plurality of apertures displaced about said signal and cover layers and aligned to couple said signal conductors, first and second capacitor conductors, said plurality of ground strip conductors and first and second ground plane conductors together, wherein a dielectric resin is deposited over said plurality of signal conductors and wherein the first and second ground strip conductors are mounted in facing contact to each other; andd) termination means for coupling electrical signals to said plurality signal conductors and said first and second ground plane conductors.