Device for emitting and/or receiving electromagnetic waves comprising a lens made of a shaped volume of dielectric material
US6426731B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 24, 2001 |
| Grant date | Jul 30, 2002 |
| Priority date | — |
| Expiry date | Jan 24, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q19/062
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The invention relates to a device for emitting and/or receiving electromagnetic waves comprising a lens bringing a plurality of directions defined by the radiation space of the lens into correspondence with a plurality of focusing points defining a focusing surface of the lens, the lens comprising a shaped volume of dielectric material. According to the invention, the dielectric material comprises a granular agglomerate defined by a homogeneous or quasi-homogeneous distribution of granules of the same type and of small size with respect to the wavelength (&lgr;R, &lgr;T) of the electromagnetic waves to be received and/or emitted by the said device, the said granules being held under pressure in the said volume by holding means shaped according to the said volume. The invention also relates to a communications terminal comprising a device according to the invention. Particular application to devices for emitting and/or receiving signals in a telecommunications system with geostationary satellites, moving satellites or earth stations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.