up: [[project:hgg|Project HGG]]

====== Project: HGG - Antenna Design ======
  * [[project:hgg:antenna design:jpole|J-Pole]]
  * [[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).