Planar antenna
US7501992B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2007 |
| Grant date | Mar 10, 2009 |
| Priority date | — |
| Expiry date | Jun 28, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q9/065
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The planer antenna includes: a linear radiating antenna element to which electric power is to be supplied; and multiple linear parasitic antenna elements to which electric power is not to be supplied. The parasitic antenna elements are disposed at a position at which the radiating antenna element and the parasitic antenna elements cross each other without contact. The parasitic antenna elements lying in a direction in which the radiating antenna element and the parasitic antenna elements cross each other, and each of the crossing portions of said plural parasitic antenna elements, which portions cross said radiating antenna element, are bent in such a manner that the crossing portions of the parasitic antenna elements are in parallel with the radiating antenna element. Thus, it is possible to provide a planer antenna which can obtain a good circularly polarized wave with a simple construction. In addition, the planar antenna can be downsized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.