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US 2022/0029311 A1Published application
Folded rotman lens and array antenna using same
AssigneeLockheed Martin Corporation
InventorsTommy H. LAM, Christopher Jordan TORBITT, Joseph Paul JENDRISAK, Jessica Alexis Hough
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Abstract
A beamforming apparatus is constructed from a pliable medium and a conductor pattern disposed on the pliable medium to form a foldable Rotman lens.
Claims21
A beamforming apparatus comprising:
- a pliable medium defining a first panel and a second panel folded relative to the first panel, the pliable medium configured to be treated after the second panel is folded so the pliable medium retains a folded shape;
- and
- a conductor pattern disposed on the pliable medium to form a foldable Rotman lens having beam ports and opposing element ports, the Rotman lens having a first portion formed on the first panel and a second portion formed on the second panel.
(canceled)
An array antenna comprising:
- at least one substrate constructed from a pliable medium defining a first panel and a second panel folded relative to the first panel, the second panel being spaced from and corrugated with the first panel;
- and
- a conductor pattern disposed on each substrate to form a corresponding folded Rotman lens comprising beam ports and element ports, the Rotman lens having a first portion formed on the first panel and a second portion formed on the second panel, at least one of the Rotman lenses being coupled at element ports thereof to antenna elements of the array antenna.
Dependencies are inferred from the claim text.