Linear-to-circular polarizer antenna
US11211675B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Nov 27, 2018 |
| Grant date | Dec 28, 2021 |
| Priority date | — |
| Expiry date | Apr 26, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P11/00
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A linear-to-circular polarizer antenna is disclosed. In accordance with embodiments of the invention, the polarizer antenna includes an antenna operable to transmit and receive polarized signals and a linear-to-circular polarizer coupled to the antenna. The polarizer includes a plurality of cascaded elements, waveplates or anisotropic sheets, having biaxial permittivity. Each cascaded element has a principal axis rotated at different angles relative to an adjacent element about a z-axis of a 3-dimensional x, y, z coordinate system, and each element is composed of an artificial anisotropic dielectric. The polarizer further includes impedance matching layers disposed adjacent the cascaded elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.