Antennas with improved reception of satellite signals
US10181646B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 19, 2017 |
| Grant date | Jan 15, 2019 |
| Priority date | — |
| Expiry date | Feb 19, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q15/006
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An antenna configured to receive radiation at global navigation satellite system (GNSS) frequencies includes a dielectric substrate, a circular patch overlaying the dielectric substrate, one or more impedance transformers, and a metamaterial ground plane. The metamaterial ground plane includes a plurality of conductive patches and a cavity. The conductive patches are arranged along a first plane on a backside of the dielectric substrate and are separated from the circular patch by the dielectric substrate. The cavity includes a ground plane and a conductive fence. The ground plane is arranged along a second plane below the first plane. The ground plane is electrically coupled to at least a first portion of the plurality of conductive patches by conductive vias. The conductive fence is spaced from the backside of the dielectric substrate and from the plurality of conductive patches by a gap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.