Liquid crystal phase shifter, method for operating the same, liquid crystal antenna, and communication apparatus
US11563260B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 8, 2019 |
| Grant date | Jan 24, 2023 |
| Priority date | — |
| Expiry date | Sep 20, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q3/44
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A liquid crystal phase shifter, a liquid crystal antenna, a communication apparatus, and a method for operating a liquid crystal phase shifter are provided. The liquid crystal phase shifter includes a microwave transmission structure and a phase adjustment structure opposite to each other, and a liquid crystal layer between the microwave transmission structure and the phase adjustment structure; wherein the phase adjustment structure comprises a plurality of phase adjustment units; the plurality of phase adjustment units are configured to change a dielectric constant of the liquid crystal layer according to a voltage applied to the phase adjustment units and a voltage applied to the microwave transmission structure, so as to adjust a phase of a microwave signal; and phase shift amounts adjusted by the plurality of phase adjustment units are different from each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.