Narrow beam antenna
US6965354B2 · kind B2 · utility
16Cited by
4References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 12, 2003 |
| Grant date | Nov 15, 2005 |
| Priority date | — |
| Expiry date | Feb 9, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q15/0086
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method for making an antenna and the antenna itself are described. The antenna comprises a first region having a first refractive index and a second region having a negative refractive index, the second region substantially surrounding the first region, such that radiation outside the second region is reproduced in the first region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.