wifi adapter

Does anyone know of a mux or similar device that can take output from 2 different Wifi 4x4 radios (one a 2.4G and the other 5G; both use the Broadcom BCM43465 MU-MIMO chipset) and connect them to the same 4 antennas? I don't want to use 8 antennas so looking for way to share the same 4 antennas...

Hi all, So my desktop doesn't have a wifi adapter because I've always used wired connection (for gaming/streaming/etc.). I am unfortunately moving to a new place where I will not be able to use wired due to the location of the router (there's no in-the-wall ethernet ports and I can't run a...