Polarizing reflector for multiple beam antennas
US10637152B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2018 |
| Grant date | Apr 28, 2020 |
| Priority date | — |
| Expiry date | Sep 7, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/065
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A polarizing reflector for broadband antennas includes a flat dielectric substrate, a patch array layer formed by a bi-dimensionally periodic lattice of thin metallic patches along first and second perpendicular directions x, y, and a ground layer. All the patches have a same shape elongated along the second direction y and form electric dipoles when electrically excited along the second direction y. For each row the patches of the said row are interconnected by an elongated metallic strip oriented along the first direction x and having a width c. The geometry of the patch array, the thickness h and the dielectric permittivity εr of the substrate, and the width c of the elongated metallic strips are tuned so that the patch array including the elongated metallic strips induces a fundamental aperture mode and a complementary fundamental dipolar mode along two orthogonal TE and TM polarizations within a single operating frequency band or two separate operating frequency bands, and the differential phase between the two fundamental modes over the single or the first and second frequency bands being equal to +90° or to an odd integer multiple of ±90°. The polarizing reflector can compri…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.