Multilayer waveguide filter employing via metals

Wave transmission lines and networks – Coupling networks – Wave filters including long line elements

Reexamination Certificate

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Details

C333S239000

Reexamination Certificate

active

07142074

ABSTRACT:
A waveguide filter is disclosed. The waveguide filter includes a lower conductive layer; a plurality of dielectric layers stacked on the lower conductive layer; an upper conductive layer formed on a top surface of the plurality of dielectric layers; a waveguide formed on the upper conductive layer; and two sets of first via metals arranged at longitudinal sides of the waveguide filter, wherein each of the sets is formed in two-fold line shape.

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