Antenna coupler and arrangement for coupling a radio telecommunication device to external apparatuses

摘要

An antenna coupler (400, 500, 802) is provided for coupling a radio telecommunication device (301) with an integral planar antenna to an external device (801). The integral planar antenna of the radio telecommunication device comprises a first planar conductive antenna element (306). The antenna coupler comprises a second planar conductive antenna element (401, 501) which is essentially similar to the first planar conductive antenna element, a first conductive ground plane (403) parallel to said second planar conductive antenna element and transmission means (404) for conducting a radio frequency signal between said second planar conductive antenna element and the external device. <IMAGE> <IMAGE>