As part of my university project I am trying to read NFC data (13.56MHz) at a longer range (~60 cm). I have already developed code that reads data from the card at close proximity, using libnfc and a standard USB based NFC reader.
I am facing the challenge to read data from distance. All the information I have seen out there seems to be a few years old with unsupported hardware.
My initial thoughts were to try to find a NFC reader that I could just plugged a bigger antenna, as you can do with 802.11 wireless technology...
I would appreciate some tips on how to achieve my goal, what type of hardware would I need? And could I still use libnfc and my code?