Wi-fi GUNS Work? Has anyone tried to do it according to the scheme from the Kreosan channel on You-tube?

Question

IT education

I saw a video from the Kreosan channel on You-tube, where one smart provincial from Ukraine came up with an antenna that can be found by name, and the question is - Does it really work as the author says? After all, if so, then this is an indispensable antenna for hacking Wi-fi at a long distance. The scheme is not entirely clear, so if anyone has done it, write more clearly how to do it.
Sincerely, Vadim.

Answer 1

Antenna type "Wave channel", with round directors and a reflector. Why shouldn't she work?
Who has already done it is easy to google. Here, for example, is the most authoritative site .

Answer 2

It's easier to buy. It will be done normally and the price is 3 kopecks. If it is interesting to suffer, then it does not matter how it works. Do different. The same bi-square.