I want to have a (LF or HF or UHF) RFID reader and connect 3 (PCB) antennas to it. I was thinking that it would be less messy if I multiplex antennas and wire them into one input, because number of antennas might jump to a higher number.
How can I do the multiplexing from multiple different antennas? Where are the problems?
Are there any recommended RFID shields for arduino platforms, possibly HF (13.56 MHz)?
Everybody with suggestions is more than welcomed!