Unterschiede

Hier werden die Unterschiede zwischen zwei Versionen angezeigt.

--- project:hgg:antenna_design [2011-12-29 18:16] – angelegt 194.29.227.136
+++ project:hgg:antenna_design [2012-06-18 01:25] (aktuell) – alte Version wieder hergestellt 46.115.42.81
@@ Zeile 3: / Zeile 3: @@
 ====== Project: HGG - Antenna Design ======
   * [[project:hgg:antenna design:jpole|J-Pole]]
-  * [[project:hgg:antenna design:jpole|Slim-JIM]]
+  * [[project:hgg:antenna design:slimjim|Slim-JIM]]
+  * [[project:hgg:antenna_design:omidirectional|Omnidirektional]]
+  * [[project:hgg:antenna_design:lindenblad|Lindenblad (Omnidirectional)]] (see also: [[http://www.amsat.org/amsat/articles/w6shp/lindy.html|AMSAT, W6SHP: The Lindenblad]])
+There's also a nice collection of [[http://www.dxzone.com/catalog/Antennas/Satellite/|satellite antenna designs at dxzone]].
+====== Findings about Antenna Design ======
+Random facts about antennas we found out or read about. Need to be put into an article and into context.
+===== Why is usually a 1/2 lambda antenna used? =====
+Imagine a Sine wave. Imagine a half wavelength starting at PI/2. It goes until 3/4 * PI. That means you have the beginning where the value of the sine is max and the end where it is minimal. That means your difference is maximized. For a wave - it's the same. Thus by using lambda / half antennas you can maximize the output-level.
+To think about: Does an antenna cause a phase shift? (I think it does).