| 摘要 |
An antenna device for several frequency bands comprises two radiating elements. The first element is a rod arrangement (22) which radiates in several frequency bands, while the second element (15) includes a pattern of conductor portions disposed on a carrier (4) of insulating material, this element (15) also radiating in several frequency bands. The pattern of conductor portions is designated as a planar, angular helix with a number of galvanically interconnected, substantially straight conductor portions (16, 16', 16''... 17, 17', 17''...). The rod arrangement (22) is placed in association with the carrier (4) in order to be supplied non-galvanically therefrom. Preferably, the carrier (4) is rolled up into a tube or a channel with an axially directed aperture or slot. The carrier (4) has conductor portions in association with the edges (26, 27) which meet along the aperture or slot. The rod arrangement (22) extends axially in the region of the aperture or the slot. |
