PIFA antenna apparatus for mobile communications terminals
US7102575B2 · kind B2 · utility
3Cited by
4References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 5, 2001 |
| Grant date | Sep 5, 2006 |
| Priority date | — |
| Expiry date | Nov 5, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q5/378
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A PIFA antenna device is provided which includes an HF input/output and two antenna surfaces respectively having a contact with the ground of a mobile communication terminal. The first antenna surface is configured for two independent frequencies and the second antenna surface is configured for a third independent frequency. Only the first antenna surface is connected to the HF input/output and the second antenna surface is arranged in a contactless manner with respect to the first antenna surface, whereby an electromagnetic coupling occurs between both antenna surfaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.