Turn your PC into a Wi-Fi Hotspot - Connectify Hotspot

So if you have 3,4 or 15 wi-fi antena Connectify allows you to join different wifi networks in to one.

Hotspot Easily Connects All Your Devices to Wi-Fi
Connectify Hotspot makes all your devices happy. This easy-to-use virtual router lets you share Internet from your laptop with your smartphone, tablet, media player, e-reader, other laptops, and even your nearby friends.

You can download from offical site from free Trail version

http://www.connectify.me/

There is a cracked version of the program on the Internet but I did not find any one to be stable it is crash over time.

So if you need best internet in neighborhood buy software .