AN ANTENNA DEVICE, A COMMUNICATION DEVICE COMPRISING SUCH AN ANTENNA DEVICE AND A METHOD OF OPERATING THE COMMUNICATION DEVICE

摘要

An antenna device comprises a first (12) and a second (14) internal antenna element and a common ground plane (22). The first element comprises an upper and a lower end portion. The first antenna element is adapted for use with a cellular mobile phone system and the second one 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.