| 摘要 |
A broad band antenna has a radiator, for example a slot (4) in an earth plane (3). A supply means (6) has a first central conductor (9) which, with one end (10), is connected to the circuits in a transceiver which extends along/in association with the radiator (4) and which has one free end (11). The supply means (6) further has a second, helical conductor (13) whose one end (14) is earthed and whose other end (15) terminates freely. The helical conductor (13) surrounds the central conductor (9). In one embodiment, the helical conductor (13) is provided with straight, mutually intersecting conductor sections on opposing sides of a three-layer circuit card. The opposing ends of the conductor sections are electrically connected to one another through the circuit card, and the central conductor (9) is disposed in the central layer of the card. |
