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Helical Antenna Design - RF Cafe Forums

The original RF Cafe Forums were shut down in late 2012 due to maintenance issues. Original posts:

Amateur Radio | Antennas | Circuits & Components | Systems | Test & Measurement


jr46228
 Post subject: Helical Antenna Design
Posted: Fri Jan 14, 2005 12:55 pm 
Hello - I'm an audio, not an RF guy,
and I'm having difficulty Googleing concise info regarding the basic design/theory of operation of helical antennas. I've found pix and plans for axial/endfire helicals, but not what has been described as "normal"/spherical/hemispherical/omni designs - the one with the radiation pattern that can best be described as torroidal or omnidirectional, rather than hypercardioidal. Any leads appreciated!


 
  
 
Guest
 Post subject: Re: Helical Antenna Design
Posted: Tue Jan 25, 2005 8:46 am 
jr46228 wrote:
Hello - I'm an audio, not an RF guy,
and I'm having difficulty Googleing concise info regarding the basic design/theory of operation of helical antennas. I've found pix and plans for axial/endfire helicals, but not what has been described as "normal"/spherical/hemispherical/omni designs - the one with the radiation pattern that can best be described as torroidal or omnidirectional, rather than hypercardioidal. Any leads appreciated!


I have used a company in the UK, called European Antennas, for these type of antennas. They have a wide range of products for all of the applications, and its far easier than building them yourself. There web-site is www.european-antennas.co.uk


 
  
 
andywallac
 Post subject:
Posted: Fri Mar 09, 2007 9:09 am 
 
Captain

Joined: Fri Mar 09, 2007 8:17 am
Posts: 5
is Sarantel is in your interest...maybe not more PowerHelix™ antennas

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