Please find the attached file for my implementation.
Regarding the bqTESLA100LP low power wireless power evaluation kit.
With the EVM, the max distance I can achieve, including the plastic, is 8 to 10mm (free space).
For my design requirement, there will be a 20 to 25mm thick rubber in-between the TX and RX. I can't achieve wireless charging at that distance. What is the possible workaround? Could rubber affects the communication signals?
