Let’s not be so sure until I’ve actually attempted it
Incidentally, the PTA is incredible: bus drivers don’t take cash anymore (not sure why), and it takes 7 to 15 days (!) to get a replacement card. Meaning, if you lose your card - which happens - then for one to two weeks, you’re plain SOL to go to work or attend university if the bus is your only means of transportation. Really quite sloppy.
So Amal, does that inductance inspire you anything?
If you don’t have a ready-made antenna, here’s what I’m thinking: I could coil one myself and test-drive it for a while. If it works well, I could either send you the complete thing ready to be bio-gooped into an implant, or send you the antenna and the chip separately if you want to do your own soldering. Would it be an option? In which case, could you give me the inner dimensions of the coil inside a wedge implant?