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Cantenna with Parabolic bottom ; what do you think ?

 
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OldTechy
Antenna-Theory.com Newbie


Joined: 24 Jul 2012
Posts: 2
PostPosted: Wed Jul 25, 2012 2:59 pm    Post subject: Cantenna with Parabolic bottom ; what do you think ? Reply with quote
Cool HI again, with another question regarding WiFi ' cantennas '.

--> [Assuming the (1/4 wave:monopole or 1/2wave dipole) probe is properly positioned near the "focus"]

Would replacing the can's flat-bottom with a suitable, parabolic-reflector,
provide additional signal-gain for a waveguide-cantenna?

(i.e. blend the cantenna technologies with WokFi developments.... Wink )
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Schubert
Antenna Wizard


Joined: 08 Apr 2009
Posts: 161
PostPosted: Wed Jul 25, 2012 10:17 pm    Post subject: Reply with quote
No, that won't work. In the case of a parabolic reflector, the dish is 10s-100s of wavelengths long. This isn't the case for the WIFI cantenna so you won't get any benefit from doing that. It's a reasonable idea though.
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