Spiral antenna with coiled walls
US11217881B1 · kind B1 · utility
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10References
20Claims
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Assignee
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Key dates
| Filing date | Nov 5, 2019 |
| Grant date | Jan 4, 2022 |
| Priority date | — |
| Expiry date | Nov 5, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q13/26
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A spiral antenna device includes one or more conductive spiral arms that are formed on a dielectric substrate attached to a wall of a cylindrical cavity. One or more coils are formed on the wall of the cylindrical cavity and are coupled to the one or more conductive spiral arms. Starting points of the one or more conductive spiral arms are in a center region of the dielectric substrate and ending points of the one or more conductive spiral arms are electrically coupled to first ends of the one or more coils.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.