Antenna with partially saturated dispersive ferromagnetic substrate
US11114761B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 4, 2018 |
| Grant date | Sep 7, 2021 |
| Priority date | — |
| Expiry date | Oct 4, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q7/08
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The invention concerns an antenna, comprising at least two non-ferrous metal plates, at least one first plate forming a radiating portion and a second plate forming a mass plane, at least one substrate, arranged between the mass plane and the radiating portion, and an excitor of length at least equal to the thickness of the substrate, extending between the mass plane and the radiating portion and connected to the radiating portion, and adapted to supply the antenna, characterised in that the substrate is a dispersive ferromagnetic substrate, called dispersive ferrite presenting, as magnetic features, a high relative magnetic permeability comprised between 10 and 10,000 and a high magnetic loss tangent greater than 0.1, said antenna comprising means for gradually and locally reducing magnetic features of the dispersive ferrite.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.