File:Efecto spillover 4.png
From Vigyanwiki
No higher resolution available.
Efecto_spillover_4.png (322 × 129 pixels, file size: 50 KB, MIME type: image/png)
Summary
| Description |
English: Illustration of the effect of feed antenna gain on the "spillover" in a parabolic antenna. Spillover is the radiation from the feed antenna that falls outside the edge of the parabolic dish and is wasted. In the illustrations, the spheroid shape is the radiation pattern of the feed antenna, which is at its center. Only the radiation within the angle subtended by the dish, the shaded sector, is reflected by the dish and contributes to the main beam. The three drawings illustrate the effect of progressively higher gain feed antennas. As gain increases, less of the feed's energy is emitted at large angles to the axis, so there is less spillover.
Español: Efecto spillover |
| Source | upv |
| Author | upv |
Licensing
I, the copyright holder of this work, hereby publish it under the following licences:
|
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation Licence, 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 licence is included in the section entitled GNU Free Documentation Licence. |
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International, 3.0 Unported, 2.5 Generic, 2.0 Generic and 1.0 Generic license.
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the licence, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible licence as the original.
You may select the licence of your choice.
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 15:32, 31 October 2009 | | 322 × 129 (50 KB) | wikimediacommons>Cvalecue | {{Information |Description={{en|1=Efecto spillover}} {{es|1=Efecto spillover}} |Source=upv |Author=upv |Date= |Permission= |other_versions= }} |
File usage
The following page uses this file:
