NFC线圈主要根据终端设备预留的空间大小,去设计走线宽度和圈数以及面积,NFC单体主要关注其13.56MHz处的电感量大小,以及阻抗的虚部和实部,可以根据ST和NXP芯片的要求去设计。
1.impedance:Re = 1.24 Ω,Im = 53.36 Ω:
2.Inductance:L = 626.39 nH:
1.impedance:Re = 1.11 Ω,Im = 57.05 Ω
2.Inductance:L = 669.62 nH
1.width = 0.65 mm,gap = 0.3 mm,n = 3
2.impedance:Re = 1.22 Ω,Im = 54.42 Ω:
3.Inductance:L = 638.80 nH: