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Easy to build passive repeater for Wifi or cell phone.
Use this method to boost the Wifi signal for your laptop or PC.
No wires needed to connect to your Laptop with the built in wifi adapter.

Passive repeaters are used to change the direction of a microwave path to overcome obstructions and increase signal strenght. The passive repeater needs no power to operate and once setup needs little or no maintainance. Passive repeaters using a pair of antennas, should be placed relatively close to one end of a wifi device. Optimally one end of the repeater should be in the near field of your wifi device. If they are positioned so as to intercept a significant fraction of the transmitted power from the nearer transmitter. That power is then fed to a second antenna and directed toward the distant end of the link over a path which is much better than the direct path between the two end stations. Even though the losses over a path through a passive repeater are greater than those in freespace, these losses can be much less than what was possible over the original, obstructed path. If the antennas have a high gain and catch significant power then communications can be maintained.

Instructions to build the cantennas can be found HERE
Instructions to build the biquad can be found HERE
Passive repeater for wifi or cellphone
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