https://www.theregister.co.uk/2018/07/24/qualcomm_5g_chip/

Pic Qualcomm is getting ready to ship one of the relatively boring bits of the 5G puzzle – well, perhaps boring for you, but fascinating for electronics geeks: a compact transceiver/antenna combo that fits inside phones to provide 5G millimetre-wave communications.

Mm-wave transmissions are a crucial part of ultrafast next-generation mobile broadband, aka 5G: carriers with multi-gigahertz millimetre-wave bands can transfer more data per second over the air to and from handhelds and cellular towers, and handle more devices at once, than today's 4G/LTE technology.