File:A6-3EN.jpg
Page contents not supported in other languages.
A6-3EN.jpg (280 × 262 pixels, file size: 4 KB, MIME type: image/jpeg)
This is a file from the Wikimedia Commons. Information from its description page there is shown below. Commons is a freely licensed media file repository. You can help. |
Summary
DescriptionA6-3EN.jpg |
English: Diagram of a quarter-wave monopole antenna and its image (dotted line) reflected by a ground plane. Label in english. When a monopole antenna is mounted above a ground plane such as the Earth, the radio waves emitted downwards by the antenna reflect off the ground plane. The radiation pattern of the antenna is the sum of the direct waves and the reflected waves, which seem to come from an image antenna below the ground. The real antenna and its image form a dipole antenna, so the radiation pattern of a monopole antenna is the top half of a dipole radiation pattern. |
|||||
Source | Own work | |||||
Author | LP | |||||
Other versions |
|
Licensing
I, the copyright holder of this work, hereby publish it under the following license:
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.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue |
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. | ||
| ||
This licensing tag was added to this file as part of the GFDL licensing update.http://creativecommons.org/licenses/by-sa/3.0/CC BY-SA 3.0Creative Commons Attribution-Share Alike 3.0truetrue |
Items portrayed in this file
depicts
some value
image/jpeg
ec35267fb90d2ff1eba6fed143771307a88fa31a
4,579 byte
262 pixel
280 pixel
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 12:31, 17 August 2006 | 280 × 262 (4 KB) | LP~commonswiki | Quarter-wave antenna and its image reflected by the ground plane. Label in english. 2006 |
File usage
No pages on the English Wikipedia use this file (pages on other projects are not listed).
Retrieved from "https://en.wikipedia.org/wiki/File:A6-3EN.jpg"