Liquid crystal phase shifter, manufacturing method of the same, and liquid crystal antenna
US11380990B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2020 |
| Grant date | Jul 5, 2022 |
| Priority date | — |
| Expiry date | Mar 5, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/061
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Provided are a liquid crystal phase shifter, a manufacturing method thereof, and a liquid crystal antenna. The liquid crystal phase shifter includes a first substrate, a second substrate, microstrips, a ground electrode, and liquid crystals located between the at least one microstrip and the ground electrode. The microstrip line is disposed on a side of the second substrate facing towards the first substrate and includes a first transmission line and a second transmission line that are each a coil and are nested with each other in a direction perpendicular to a plane of the second substrate. The coiling transmission directions of radio frequency signals transmitted on the first and second transmission lines are opposite. The ground electrode overlaps both the first transmission line and the second transmission line in the direction perpendicular to the plane of the second substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.