Fabrication method and apparatus for antenna structures in wireless communications devices
US6842148B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 16, 2002 |
| Grant date | Jan 11, 2005 |
| Priority date | — |
| Expiry date | Apr 23, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q1/36
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
There is disclosed a meanderline loaded antenna formed by applying a conductive ink or other conductive material to a flexible substrate. The substrate is then shaped by removing regions and folding other regions along perforated or scored lines to fit the antenna within the available space of a wireless device. In lieu of folding regions of a planar substrate to form a three-dimensional structure, the substrate can be vacuum formed over a mandrel after the antenna elements have been formed thereon. The antenna can also be formed by printing on existing enclosure surfaces of a wireless device or on the surfaces of components within the device. Thus the advantages offered by a meanderline antenna where the effective electrical length is greater than the actual physical length are achieved in conjunction with a space-saving physical structure for the antenna.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.