Antenna device, a communication device including such an antenna device and a method of operating the communication device
US6492952B1 · kind B1 · utility
37Cited by
6References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 17, 2000 |
| Grant date | Dec 10, 2002 |
| Priority date | — |
| Expiry date | Nov 17, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/28
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An antenna device includes a first and a second internal antenna element and a common ground plane. The first element has an upper and a lower end portion. The first antenna element is adapted for use with a cellular mobile phone system and the second antenna element is adapted for use with a GPS system. To that end, the second element is elongated and adapted to receive circularly polarized radio signals by operation with linear polarization. This provides for a compact antenna device adapted for use with more than one communication system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.