Antenna device
US8836603B2 · kind B2 · utility
3Cited by
5References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 1, 2010 |
| Grant date | Sep 16, 2014 |
| Priority date | — |
| Expiry date | Mar 24, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/29
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An antenna device includes: a plurality of loop metal wires that form loops out of metal wires and that are radially arranged around a center line; a power feeding portion that feeds power to the loop metal wires or a power receiving portion that receives power from the loop metal wires and that is provided on the center line; and a variable impedance element that is inserted in each of the loop metal wires.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.