Hello, I bought a 2.4GHz controlled RC car from a Chinese vendor. Under the car chassis, there is a 30mm x 20mm copper plane attached.
Surprisingly, the customer's service team replied that "it's antenna. 2.4GHz antenna amplification device."
I couldn't believe what I heard. So I'm posting this question.
Can that copper plane act as a 2.4GHz antenna? Also, can this plane "really" amplify something?