File:FoldedUnipoleElevation.jpg
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Summary
| Description |
English: A folded unipole antenna, a type of transmitting antenna used by AM radio stations which broadcast in the medium wave band. It consists of a tubular steel radio mast, with a "skirt" of six vertical conductive wires surrounding it, supported by standoff insulators, connected to the mast about halfway up. One side of the feedline that feeds electrical power to the mast from the transmitter is connected to the wires at the base of the mast, the other side to a ground system consisting of conductive wires buried in the ground radiating from a terminal next to the base of the mast. The base of the mast is electrically connected to the ground system. The advantage of this antenna is that the skirt wires match the impedance of the antenna to the transmission line without an elaborate impedance matching network, allowing the antenna to be fed power efficiently without reflecting power back down the transmission line. |
| Date | 12 September 2006 |
| Source |
Original uploaded by: LymanSchool Ported to Commons by: Chetvorno |
| Author | Jack Mullaney and Alan E. Gearing of Mullaney Engineering, Inc. |
Licensing
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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License. |
  
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This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. | |
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| This licensing tag was added to this file as part of the GFDL licensing update. |
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 19:07, 12 September 2006 | | 1,024 × 768 (76 KB) | LymanSchool | Provided by Jack Mullaney and Alan E. Gearing of Mullaney Engineering, Inc. |
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