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US 12,068,518 B2Granted
Waveguide filter comprising a waveguide cavity defined by plural sidewalls and formed by a metal additive manufacturing technique having a specified overhang angle
AssigneeOptisys, Inc.
InventorsMichael Hollenbeck, Robert Smith
Life of this patent
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Abstract
Waveguide filters comprising ridges disposed within a waveguide cavity for selecting electromagnetic signals within a frequency passband. An apparatus includes a waveguide filter comprising a waveguide cavity and a plurality of ridges disposed within the waveguide cavity. The apparatus is such that each of the plurality of ridges comprises a first side and a second side, and wherein the first side and the second side are disposed at a non-orthogonal angle relative to one other. The apparatus is optimized for fabrication using metal additive manufacturing techniques.
Claims22
An apparatus comprising:
- a waveguide cavity for propagating an electromagnetic signal, wherein the waveguide cavity is defined by a plurality of sidewalls;
- wherein the waveguide cavity comprises an irregular hexagonal cross-sectional geometry that has a complex side;
- wherein the complex side comprises a first side and a second side connected to the first side;
- and
- wherein the first side and the second side of the complex side meet at a radiused edge;
- wherein the apparatus is fabricated as a single indivisible metal element using metal additive manufacturing techniques such that the apparatus is fabricated in a positive Z-axis direction relative to a build plate;
- and
- wherein the apparatus is oriented relative to the build plate such that an overhang angle on any downward facing surface of the apparatus is greater than or equal to 25 degrees.
5 more elements
Dependencies are inferred from the claim text.