Antenna arrangement in a metallic environment
US6452563B1 · kind B1 · utility
95Cited by
2References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 11, 2001 |
| Grant date | Sep 17, 2002 |
| Priority date | — |
| Expiry date | Jun 11, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q7/00
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The invention concerns an arrangement for an antenna (A) having the general shape of a loop, directly in the proximity of at least a metallic element (10). The invention is characterised in that each metallic element (10) comprises an orifice (18) arranged substantially opposite the surface defined by the antenna (A), and a slot (16) forming a gap width, arranged through the thickness of the metallic element (10), between the internal edge (21) delimiting the orifice (18) and the external edge (20) of said metallic element (10). The invention is applicable to scanners and radio frequency communication devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.