Antenna feeder
As antenna feed line ( English aerial feeder line ), and antenna feed ( English aerial feeder ) or short feed line ( English feeder line ) - refers in radio stations , radio systems and radio stations - an electrical conductor system, embodied as a coaxial cable , Lecher line , strip line , or Trap line with adapted line impedance .
In larger systems, the antenna feed line represents the electrical connection between the broadcast house, with the output stage of the transmitter, and the antenna separated from the broadcast house .
A distinction is made between two types of antenna feed:
- coordinated feed line and
- uncoordinated feed line , also called adapted line .
Both types of antenna feed do not emit any high-frequency energy themselves if they are dimensioned accordingly, but rather serve to transport energy between the transmitter and antenna. There are further distinguishing features corresponding to the type of energy supply with regard to base point supply , central supply , multiple supply and double supply .
literature
- Wilhelm Artus: Introduction to electrical communications engineering. R. Oldenbourg Verlag, Munich 1957.
- H. Meinke, FW Gundlach: Pocket book of high frequency technology. Volume 3: Systems. 5th edition. Springer Verlag, Berlin / Heidelberg 1992, ISBN 3-540-54716-9 .
- Jürgen Detlefsen, Uwe Siart: Basics of high frequency technology. 4th edition, R. Oldenbourg Verlag, Munich 2012, ISBN 978-3-486-70891-2 .
Individual evidence
- ↑ Handbook for high frequency and electrical technology, Volume V, specialist dictionary, Verlag für Radio-Foto-Kinotechnik GmbH, Berlin 1957; Pp. 41, 641.