Electronic device antennas with laser-activated plastic and foam carriers
US9954273B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 1, 2015 |
| Grant date | Apr 24, 2018 |
| Priority date | — |
| Expiry date | Oct 7, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q9/42
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An electronic device may be provided with wireless circuitry that includes antennas. An antenna may be formed from metal traces on a dielectric antenna carrier. The antenna carrier may be formed by molding a layer of plastic onto the surface of a foam member. The foam member may have a low dielectric constant to enhance antenna performance and may be formed from a stiff closed cell plastic foam material. Heat and pressure may be used to attach the layer of plastic to the surface of the foam member without adhesive. A laser may be used to selectively expose portions of the plastic layer to laser light. The plastic layer may include additives that sensitize the plastic layer to light exposure. Electroplated metal traces for the antenna may be formed on the exposed portions of the plastic layer while leaving other portions of the plastic layer uncovered with metal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.