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Quad Beam Antenna for Wifi

Build a quad beam antenna for your wireless internet

The quad beam antenna is probably one of the best antenna designs to use for wireless internet in the city. It has a tremendous advantage over the yagi and waveguide antenna types. the reason is, the director elements are impervious to polerization refraction due to reflecting off buildings.
Ham radio operators have used this advantage for years when talking "skip" {bouncing the signal off the ionosphere}. The signal does not actually bounce it is "bent" or refracted similar to light passing through a lense. This bending causes the polarization to shift from vertical towards the horizontal and back.
Causing the signal to fade in and out.



ion layer causes refraction of radio waves

The same thing happens when wifi signals are bounced off buildings or go through walls.
bouncing wifi signals

Quad calculator
This calculator is designed to give the best results for Wifi
Enter mid band frequency: mHz 

Elements
Element -
Total Length
Wire -
One Side
 Spreader -
Half Length
Spreader - 
Total Length
 Element -
Spacing
  INCHES / CM INCHES / CM  INCHES / CM  INCHES / CM INCHES / CM 
Reflector  
Driven
Director 1
Director 2
Director 3
Director 4
Director 5
Total Boom Length > FEET= INCHES= CM=

wifi quad beam antenna
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December 15, 2017