Quote:
Originally Posted by zx10guy
Are you sure that wireless router has directional antennas?
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Really? You're not even trying, I gave you all the information...all you had to do was google 802.11ac beamforming.
Do you understand what constructive and destructive wave interference is? If not, google that and read about it because you will need to understand it to know how these can be directional. The basic point is these use very small phase differences between the antennas to steer a point of constructive interference in the direction of your device. Indeed, directional beam forming is WRITTEN INTO THE SPEC of 802.11AC and I can assure you it is not only a real thing but it works very well. The technology is not even slightly new. Guess how phased array radars (in use by the military for decades) work? Yes, exact same principal. You have a shitload of small antennas and they "steer" the high gain beam by using phase differences among the elements to generate constructive interference.