NFC antenna tuning

[hkarthik97]

I am trying to tune my NFC antenna . The antenna is printed on the pcb. The same Laird antenna is used in my pcb. Based on the antenna tuning white paper I am trying to tune the antenna to 13.56 mhz . But I am getting 14.29mhz with 330 pf capacitor. The dk had 300 pf. The white paper also said I can make changes to the nfc_settings.bat but I am not able to find the file.

.

[Kaja]

Hi, 

what happens if you increase the C_tune capacitors a bit more?

Best regards,
Kaja