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US 2010/0301973 A1Published application
Systems, Devices, and/or Methods Regarding Waveguides
AssigneesJames Stenec, Scott Barker
InventorsJames Stanec, Nicolas S. Barker
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Abstract
Certain exemplary embodiments can provide a rectangular waveguide and backshort adapted for using/studying millimeter and/or submillimeter waves. Exemplary sliding shorts can exhibit relatively low loss, relatively smooth phase variation with frequency and movement, and/or relatively good repeatability. Certain exemplary embodiments can resist transmission of power by reflecting substantially all power from an incident signal.
Claims20
A system comprising:
- a waveguide, said waveguide comprising a first sidewall, a second sidewall, a first broad wall and a second broad wall, said first sidewall substantially parallel to said second sidewall, said first broad wall substantially parallel to said second broad wall;
- and
- a backshort, said backshort comprising a conductive metal, when operatively installed in said waveguide:
- said backshort substantially electrically coupled to each of said first broad wall and said second broad wall via substantial contact between said backshort and each of said first broad wall and said second broad wall;
- and
- said backshort substantially electrically insulated to each of said first sidewall and said second sidewall via a defined air gap between said backshort and each of said first sidewall and said second sidewall.
3 more elements
A device comprising:
- a backshort comprising a conductive metal, said backshort comprising a plurality of low impedance portions, each of said plurality of low impedance portions defining a longitudinal axis, wherein each longitudinal axis of each of said plurality of low impedance portions are substantially parallel, each of said low impedance portions defining a length measured along said longitudinal axis, said defined length less than approximately 1 millimeter, in an operative embodiment, said backshort adapted to exhibit a return loss better than 0.101 dB across W-band (75-110 GHz) and 0.25 dB across WR-3 band (220-325 GHz).
A method comprising a plurality of activities, comprising:
- removing of a sacrificial layer and a seed layer from at least a portion of a backshort, said at least said portion of said backshort formed from a lapped non-sacrificial layer of a high conductivity metal, said lapped non-sacrificial layer of high conductivity metal electroplated into a mold, said mold created via a developed film of photoresist, said film of photoresist applied to a seed layer, said seed layer comprising said high conductivity metal, said seed layer deposited upon a sacrificial layer, said sacrificial layer deposited onto a substrate, said sacrificial layer comprising a substance adapted to be removed without damaging said high conductivity metal.
Dependencies are inferred from the claim text.