Planar multi-band antenna
US8378897B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 20, 2010 |
| Grant date | Feb 19, 2013 |
| Priority date | — |
| Expiry date | Aug 26, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q9/44
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A planar multi-band antenna includes a substrate and a metal pattern. The metal pattern includes a first metal wire, a second metal wire, a third metal wire and a fourth metal wire. The second metal wire is disposed opposite to the first metal wire and has a grounding point. Two ends of the third metal wire are connected to the first metal wire and second metal wire, respectively, and the first metal wire is divided into a first radiation portion and a second radiation portion. The fourth metal wire is partially located between the second radiation portion and the second metal wire and forms multiple bends, and has a first impedance matching portion and a feed point, and part of the fourth metal wire coincides with the second radiation portion in a projection direction. By the activation of the feeding point and the grounding point associates with the impedance matching portion, the antenna has plural bands.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.