Multiple antenna assembly utilizing electro band gap isolation structures
US8816921B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 27, 2011 |
| Grant date | Aug 26, 2014 |
| Priority date | — |
| Expiry date | Jan 18, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q17/007
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A multiple antenna assembly with high isolation between the antennas is disclosed. The assembly includes a dielectric substrate with a ground plane and first and second antennas thereon. One or more metal-dielectric isolation structures are on the substrate at locations at which an electric current is present that has a current density greater than a predefined threshold. Each metal-dielectric isolation structure resonates at a given frequency that inhibits mutual signal coupling between the first and second antennas. Various configurations, such as concentric ring patterns, for the metal-dielectric isolation structures are disclosed. A device can be provided to dynamically tune the given frequency of the metal-dielectric isolation structures to correspond to radio frequency signals emitted by the first and second antennas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.