Corrugated ground plane apparatus for an antenna
US11557833B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Apr 13, 2021 |
| Grant date | Jan 17, 2023 |
| Priority date | — |
| Expiry date | Apr 13, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/30
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An antenna comprises an axial helical radiating element and a corrugated ground plane. The axial helical radiating element provides a radiation pattern substantially parallel to a primary axis of rotation of the helical radiating element. The corrugated ground plane, disposed proximate to a back region of the antenna, comprises corrugations to increase an electrical length of travel for radial standing waves between an axial helical input, at which the axial helical radiating element is coupled to the corrugated ground plane, to an outer edge of the corrugated ground plane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.