Why do wifi routers have multiple antennas?

Question

I know that wifi routers are essentially weak microwaves but wouldn’t multiple antennas cause interference or so?

In: Technology

Answer 1

There is several bandwidths that WiFi routers broadcast. They need a separate antennae for each bandwidth.

You CAN use one antennae to pick up several different frequencies. But it’s less than optimal. You REALLY want to optimise your WiFi. WiFi is important as hell, if it worked significantly less well on some devices, it’d piss you off.