Big is beautiful
Mostly customers ask us to create NFC antennas that are as small as possible.............
Well this makes a pleasant change - like the title says 'big is beautiful'
Creating very large antennas, like trying to make them as small as possible presents lots of challenges. To create this design we had to do a lot of modelling and simulation to find the best mix of track size, number of turns and spacings.
And when reading cards at long range is the purpose then understanding the way the magnetic field decays with increasing distance also takes a lot of work.