Hi Henry,15 turns with 20mm length leads to around 4.46uH.I have a 10layer board. What do you think, would it be better to use one coil on one layer like simulated in edesign or to use two coils on layer1 and 10 with dimensions like on the eval board...

Hello, I want to implement a NFC antenna on a 10 layer PCB. Have somebody any idea how to do? Antenna routing on each layer, or only on top/bottom? Tanks For a two layer PCB the evalboard can be used to see how it is done.