This is a custom-made PCB antenna board utilising the ST25R3911B chip, but I am unsure how to proceed with impedance matching debugging and parameter configuration.
Could you offer some guidance? Below are the antenna dimensions, the calculated impedance matching values, and the original impedance matching diagram. Communication is currently possible at very close range.
To increase communication distance and stability, what modifications should be made?
*This post has been translated from Chinese to comply with the ST Community guidelines.
