Scientists have cracked a high frequency terahertz band for Wi-Fi transmission that will mean speeds 20 times higher than current abilities. The range goes from 300GHz to 3THz which, in English, means these T-rays sit between microwaves and the far-infrared spectrum.
Although microwaves do share the ability to penetrate materials like x-rays, T-rays deposit less energy meaning less damage caused. And, with data rates of up to 3Gb/s achieved already, Wi-Fi of the future could be the end of data wires once and for all.
At the moment they’ve only managed to send the messages up to 10 metres in range, so it’s not a 4G replacement. But for your in-home router that’s plenty, and thanks to a resonant tunneling diode that enhances the signal to the terahertz band, it can be done affordably now too.