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US 2008/0165068 A1Published application
Artificial dielectric rotman lens
OwnerEric David Caswellinventor
Life of this patent
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Abstract
An Artificial Dielectric Rotman Lens (ADRL) provides smaller size and reduced weight relative to conventional Rotman Lens embodiments. The ADRL includes the same input ports, output ports and dummy termination ports as a conventional Rotman Lens. The ADRL internal construction, however, is significantly different with multiple printed circuit board layers forming regions having effective permittivities that are much greater than the individual printed circuit board constitutive parameters.
Claims21
An artificial dielectric Rotman Lens (ADRL) comprising:
- input ports;
- output ports;
- a parallel plate region which includes an artificial dielectric material;
- and
- transition regions between respective input ports and respective output ports and the parallel plate region.
2 more elements
An artificial dielectric Rotman Lens (ADRL) comprising:
- a printed circuit board including a plurality of dielectric layers and a plurality of conducting layers;
- one or more arrays of capacitive elements formed from the plurality of dielectric layers and the plurality of conducting layers to define a parallel plate region of the Rotman lens;
- input ports disposed on the printed circuit board;
- output ports disposed on the printed circuit board;
- and
- transition regions between the parallel plate region and the input ports and the output ports.
3 more elements
Dependencies are inferred from the claim text.