After my little post of yesterday, I tried to figure out if I was right, if the LED strips really blocks WiFi waves. I used old LED strips from a previous ROSE project and surround my phone with them. After many tries, the phone was still connected to the school network.
I see a few explanations:
1. I was wrong, the strips are not blocking WiFi waves. Everything is perfect, we don’t have to use an external antenna. But I don’t think that’s correct.
2. My phone is a Moto G 4G. I tried to find the position of its WiFi antenna, but found nothing interesting. It may be located in a corner, and the strips haven’t had a big influence on it.
3. Android is trapping me, saying he is always connected whereas it is not. He might say he is disconnected only after a certain number of reconnection failures.
Anyway, nothing can be really sure about our sphere at this time. Fortunately, the WiFi module can be connected to two external antennas. And we can switch between them. This gives us the liberty to put an internal antenna and a connector.