Electrical the properties of the antenna in MRFC522 module.

[DongGyu]

I can't find the electrical properties of the antenna in MRFC522. Like Inductance. Please let me know some documents including that data. thank you

Or https://www.nxp.com/docs/en/application-note/149110.zip in this document, can you let me know what is the antenna's property?

[Gavin_Jia]

Hi @DongGyu ,

Thanks for contacting NXP support.

MFRC522 is no longer supported, and all its public information is just the data sheet and the AN you found. For new designs, NXP recommends using CLRC663 plus Family.

At this page you can find some guide for antenna, it may help. And if you still want to use MFRC522, you can consult with this AN: AN1445 :Antenna design guide for MFRC52x, PN51x and PN53x.

Hope it helps.

Best regards,

Gavin