Comment by hammock
Glass is silicon and silicon is conductive metal, after all…
Glass is silicon and silicon is conductive metal, after all…
Also why this system needs to be customized and tweeked to work with each specific panel of building glass it is placed with to get the full RF signal pass through
It's not using the glass itself as an antenna though:
>NTT Docomo reports that it uses transparent conductive materials as the basis for its antenna, sandwiching the conductive material along with a transparent resin, the kind used in laminated windshields, in between two sheets of glass.
“Silicon substrate, as one of the most important materials for the integrated circuit industry, can be used to manufacture mm-wave antennas for a highly integrated purpose”
Here’s an interesting paper on how to make it work efficiently:
https://www.mdpi.com/2079-9292/12/24/4983#:~:text=Silicon%20....
Glass is a resistor, it is not conductive. Its actually a pretty good resistor, its often used to separate extremely high voltages. Those little discs you often see holding high-voltage power lines are often made from glass.
Silicon is not a conductive metal. Its a semi-conductor, it needs doping to become a good conductor. That's why its used in IC's. Naturally not very conductive but react a little with something else and suddenly it becomes a pretty good conductor. Make a mask of the channels where you want that conductivity, and suddenly you can draw little wires.