Ok, my old model Y has a camera inside to monitor me. 1€ AliExpress camera cover gave my privacy back. The new model y has a radar. So it will monitor not only my presence, but also my vital parameters as well as vital parameters of all passengers. No radar cover invented for that yet… it’s a bit too much. And since it’s already there it will be abused. That’s the path with all the technology.
Probably not. Proper grounding and good shielding is needed. Eventually you can use conductive glue and attach the foil to the pcb (my guess is that Tesla uses low cost printed circuit board antenna, haven’t seen it yet) antenna directly messing its geometry and transmission characteristics.
you don't need to ground it i don't think. it will just create a "hole" in the radar's vision. Imagine holding a dental mirror in front of your eyeball.
you need a faraday cage to prevent any signal from getting in or out; but that's not the goal here.
this is more like sticking a piece of tape on your laptop camera.
