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Backfire WiFi Antenna

Backfire Antenna is a very small antenna with extremely good gain. With a half power beamwidth of 32 degrees, the backfire is a highly directional 2.4 GHz antenna to put the signal exactly where you want it. The backfire is convenient because of its small size. The 17 dB of gain is incredible for an antenna this size. Installation is very simple with the included mounting bracket. The backfire is weather-proof because of it's ABS radome, which covers the radiating element.

If you have limited space but still need a high gain antenna, the Backfire is the perfect antenna for you WiFi installation. For full specifications, please see datasheet below.

 

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The backfire antenna principle is a highly effective technique for improving the pattern characteristics of an antenna. When the space between the reflectors(from 0.5 *lambda to lambda) the backfire antenna called short backfire antenna(SBFA) and its called long backfire antenna(LBFA) when the space between reflectors greater than the wave length (lambda ).

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,,,it is a simple dipole short-circuited with an adaptation loop...!!!

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,,,,yes,this is a combination of corrugated horn-antenna and short backfire antenna...!!!

 

,,,this it"s corrugated horn...

 

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Jomy ,. which dipole PERFORMs better...?

did you try Circular Polarization...?

Look what happens when i add a RIM to the Secondary Reflector...

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PD: What tool you use for CAPTURING the animation to GIF...? (for various frecuencies)

Edited by clanon
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Clanon, you can create circular polarization by using cross dipoles. like crossed dipole or crossed bow tie antenna. moreover you can create CP by truncating stubing and sloting in a patch.You can get a circular polarisation with a planar spiral antenna which has the same circuit modelling of a dipole but with CP.

 For 2.4GHz sbf-antenna is very large in diameter(580mm)...!!!

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On 10/14/2016 at 5:05 PM, Admin said:

 

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Admin, what is the aim of 2 dipoles, and 2 ports? Can it run with one?

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,,,, yes, only one port can be run but the gain is smaller ... !!!

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