Antenna on-glass
US6384790B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 1998 |
| Grant date | May 7, 2002 |
| Priority date | — |
| Expiry date | Jun 15, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q1/1285
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present invention provides a transparent antenna including a transparent dielectric substrate, an electroconductive antenna element positioned along a major surface of the substrate, an electroconductive patch capacitively or directly connected to the antenna element, and a connector secured to the patch to permit transfer of signals generated by the antenna element to an electromagnetic energy transmitting and/or receiving device. The patch, is configured to have a visibility coefficient (i.e. a ratio of the non-opaque area to the total area) between 0 and 1. In one particular embodiment of the invention, the antenna element includes one or more transparent, electroconductive coatings positioned between first and second glass plies of a windshield for a motor vehicle and the electroconductive patch is applied to an exposed major surface of the windshield such that it overlays at least a portion of the antenna element and is capacitively coupled to the antenna element. The patch is may be formed from an opaque electroconductive ceramic IR, UV, thermoplastic or thermoset paint.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.