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116 posts

Master Geek


#89007 24-Aug-2011 20:03
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Sorry if this belongs in another section.

Small and high gain are probably exclusive.
I would settle for just directional.

I am working on a project that could do with a tight 2.4ghz beam. :)

Found these, 30,33dbi

So in theory how tight could a beam be made?
1 Wavelength?

Is there another way to form the beam, say fire it down a tube?
Wave propergation is not my strong point.

Any help appreciated Laughing

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116 posts

Master Geek


  #511585 25-Aug-2011 08:14
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After some reading I have a few things to try.


Carbon is a great absorber of microwave at 2.4ghz.
This is just what I need

But I will give some antistatic mats a try.
Hopefully they have a high enough carbon content to be useful without having to use too much.

Reflection could be an issue even if  I manage to get a beam but sine we will be out in the wild hopefully it will be less of an issue.

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