Broadbeam lens-integrated mmwave harvester for smart city environments
AssigneeGeorgia Tech Research Corporation
InventorsMarvin JOSHI, Kexin HU, Charles A. LYNCH, Emmanouil M. TENTZERIS
Life of this patent
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Abstract
An exemplary device and method are disclosed for a scalable, broadband, dielectric lens-based mmWave energy harvester with wide total solid angular coverage and mW-level that employs a pixel array of rectennas, each incorporating a circularly polarized aperture-coupled stacked patch antenna and a broadband, high-sensitivity rectifier, enhanced by a biconvex dielectric lens to achieve a wide solid angle coverage. With its broadbeam coverage and high efficiency, the exemplary device and method can be employed to lower-power sensors and remote devices without reliance on conventional power infrastructure.
Claims20
A device comprising:
- an antenna circuit assembly;
- a domed lens optically coupled to the antenna circuit assembly, the domed lens being configured to direct one or more electromagnetic signals to one or more locations on the antenna circuit assembly in a radial pattern;
- and
- a rectifier circuit assembly operatively coupled to the antenna circuit assembly, the rectifier circuit assembly being configured to rectify electromagnetic energy harvested from the antenna circuit assembly.
A device comprising:
- at least two antenna circuit assemblies, including a first circuit assembly and a second circuit assembly;
- at least two domed lenses, including a first domed lens optically coupled to the first antenna circuit assembly and a second domed lens optically coupled to the second antenna circuit assembly, wherein the first domed lens is operatively coupled to the second domed lens,
- wherein the first domed lens is configured to direct one or more electromagnetic signals to first one or more locations on the first antenna circuit assembly in a first radial pattern, and
- wherein the second domed lens is configured to direct the one or more electromagnetic signals to second one or more locations on the second antenna circuit assembly in a second radial pattern;
- and
- at least two rectifier circuit assemblies, including a first rectifier circuit assembly operatively coupled to the first antenna circuit assembly and a second rectifier circuit assembly operatively coupled to the second antenna circuit assembly, wherein the first rectifier circuit assembly is configured to rectify first electromagnetic energy harvested from the first antenna circuit assembly, and
- wherein the second rectifier circuit assembly is configured to rectify second electromagnetic energy harvested from the second antenna circuit assembly.
A method comprising:
- providing an antenna circuit assembly;
- directing, via a domed lens, one or more electromagnetic signals to one or more locations on an antenna circuit assembly in a radial pattern;
- and
- rectifying, via a rectifier circuit assembly, electromagnetic energy harvested from the antenna circuit assembly into electrical power.
Dependencies are inferred from the claim text.