Anyone have any experience with custom antennas for the xNT implant?
So I'm working on wiring up an arduino Leonardo based board called Keyduino in order to unlock my car, however, I'm running into some issues. Most active NFC tag readers have a terrible read range with the xNT, due to its cylindrical antenna design, as opposed to the standard flat design that most readers use. My plan right now is to attempt to build my own antenna, matching the shape and roughly the size of the xNT in hopes that it will improve the readability. My problem is that I have no idea where to start on an undertaking like this. Can anyone with experience in NFC technology weigh in? The Keyduino has a UF.L connector, and all of the required components and logic to be able to read the signals and power the implant, all im looking for is the physical antenna itself.