| 摘要 |
The invention relates to a ferrite antenna, comprising at least one winding ( 4 ), which is arranged around a core ( 2 ) consisting of ferrite material. A second core ( 3 ), consisting of ferrite material and running coaxially to the first core ( 2 ), is allocated to the first core ( 2 ), which carries the winding ( 4 ) and is rigidly fixed in the coil carrier ( 1 ). Said second core, which can be displaced in an axial direction in the same coil carrier ( 1 ), is positioned in such a way that the opposing front faces of the two cores are placed at a predetermined distance from one another. Said distance can be altered by displacing the second core ( 3 ) in an axial direction in order to tune the antenna. After tuning, the second core ( 3 ) can be fixed in or on the coil carrier ( 1 ). |
