You're better off running a network cable from your router to the other end of the house and installing a repeater at the end of the cable. Usually cheaper, and a much more reliable signal.
Get a long cable:
https://www.amazon.com/UbiGear-Ether...+network+cable
And plug something like this into the other end:
https://www.amazon.com/AMAKE-Repeate...ss+point&psc=1