Inventors:
Walter J. Kaminski - Long Valley NJ
Arild Kolsrud - Parsippany NJ
Assignee:
Lucent Technologies, Inc. - Murray Hill NJ
International Classification:
H01P 1213
H01P 120
H01Q 1522
Abstract:
A filter including an enclosure, a dielectric material within the enclosure, at least two microstrip antennas within the enclosure, and at least one frequency selective surface including a metallic pattern. The frequency selective surface is utilized to filter an electromagnetic signal propagated within the enclosure. The geometry of the antennas and the frequency selective surfaces as well as the resonant frequencies of the frequency selective surfaces determine whether the filter is a bandpass, bandstop, notched, or combination filter. If the frequency selective surface is omitted, the combination acts as a delay circuit for delaying the electromagnetic signal, where the time delay is a function of the dielectric constant of the dielectric material.