Why glass matters in the future?
5G is the buzzword that nearly every industry is talking about. Higher download speed, AR/VR, autonomous driving, industrial IoT – 5G is the future, powering the global economy over $12 trillion by 2035, according to an IHS study.
5G physics
With 5G, we are marching into new radio frequencies, subdivided into Sub-6 (<6 GHz) and mmWave (a wavelength range of 10 mm at 30 GHz decreasing to 1 mm at 300 GHz).
4G radio waves ranging from 700 MHz to about 2.5 GHz range from roughly 40 to 12 cm in length. In contrast, a 5G NR wave at 28 GHz are just 1 cm long. And that’s the lowest end of the mmWave frequencies; 60 GHz signals are just 5 mm in length. [edn.com]
mmWave…
- doesn’t penetrate walls!
This is perhaps the most common issue cited with upcoming 5G networks and it’s true to some extent. Most building materials, such as cement and brick, attenuate and reflect very high-frequency signals with a big enough loss you’re unlikely to receive a very useful signal moving from inside to outside. Even the air produces signal loss, which limits frequencies above 28GHz to about a kilometer anyway. Wood and glass attenuate high-frequency signals to a smaller degree, so you’ll likely still be able to use 5G mmWave next to a window. [androidauthority]
- cant’t get through hands..
- doesn’t work well when it rains..
Corning Gorrilla
https://players.brightcove.net/c54a08de-3d27-4a61-b362-8c3251c67445
Apple included glass back since 2017 models.
Industry Progress
AT&T has introduced its 5G+ service in December 2018 with 12 cities: Atlanta, Charlotte, N.C., Dallas, Houston, Indianapolis, Jacksonville, Fla., Louisville, Ky., Oklahoma City, New Orleans, Raleigh, N.C., San Antonio and Waco, Texas.
And later added 7 cities to that list in April 2019 – Austin, Los Angeles, Nashville, Orlando, San Diego, San Francisco, and San Jose, with Las Vegas the 20th in June and New York City the 21st in August.