Difference between revisions of "Turnstile Antenna"

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[[File:Turnstile Antenna.png|right|thumb|LED_Matrix_Display]]
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[[File:Turnstile Antenna.png|right|thumb|Turnstile Antenna]]
 
=Turnstile Antenna for VHF=
 
=Turnstile Antenna for VHF=
 
==Description==
 
==Description==
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==Milestones / ToDo==
 
==Milestones / ToDo==
 
* Come up with a proper design
 
* Come up with a proper design
* Calculate transmisstion stub
+
* Calculate delay line stub
 
==Photos==
 
==Photos==
 
==Resources==
 
==Resources==
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==Whiteboard==
 
==Whiteboard==
 
<pre>
 
<pre>
Circular polarization notes: Point of view is the source and '''not'' the receiver. To achive this, the "delayed" dipole should be the one ''ahead'' of the directly fed, when viewing from the bottom of the antenna and moving clockwise.
+
Circular polarization notes:
 +
  * Point of view is the source and '''not'' the receiver.
 +
  * To achive this, the "delayed" dipole should be the one ''ahead'' of the directly fed,
 +
    when viewing from the bottom of the antenna and moving clockwise.
 
</pre>
 
</pre>
 
[[Category:Projects]]
 
[[Category:Projects]]

Latest revision as of 12:23, 3 July 2013

File:Turnstile Antenna.png
Turnstile Antenna

Turnstile Antenna for VHF

Description

A simple turnstile antenna for satellite VHF reception.

Log

Specifications

  • Polarization: Right-handed circular
  • Frequency: ~137MHz
  • Impedance: 75Ω

Materials

  • 6mm dia. threaded rods
  • PVC tubing
  • RG-59 cable

Milestones / ToDo

  • Come up with a proper design
  • Calculate delay line stub

Photos

Resources

Team

Whiteboard

Circular polarization notes:
  * Point of view is the source and '''not'' the receiver.
  * To achive this, the "delayed" dipole should be the one ''ahead'' of the directly fed,
    when viewing from the bottom of the antenna and moving clockwise.