Scanning antenna and method for manufacturing scanning antenna
US11637370B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 2, 2019 |
| Grant date | Apr 25, 2023 |
| Priority date | — |
| Expiry date | Jun 15, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D30/67
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A scanning antenna includes a transmission and/or reception region including a plurality of antenna units and a non-transmission and/or reception region other than the transmission and/or reception region. The scanning antenna includes a TFT substrate, a slot substrate, a liquid crystal layer provided between the TFT substrate and the slot substrate, a seal portion provided in the non-transmission and/or reception region and surrounding the liquid crystal layer, and a reflective conductive plate disposed opposing a second main surface of a second dielectric substrate with a dielectric layer interposed between the reflective conductive plate and the second main surface. The slot electrode includes an opening or a recessed portion formed in the non-transmission and/or reception region and in the region surrounded by the seal portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.