NFC07A1 antenna design

[Schuyler]

Do you have the antenna size and design process reference of NFC07A1? I want to know how to match the circuit and what is the inductance of the antenna.

[JDEME]

Hello,

I the DB you can find the size (54 mm diameter). [Documentation]
The Gerber is also available, [cad-resources]

 The main link: X-NUCLEO-NFC07A1 - Dynamic NFC/RFID tag IC expansion board based on ST25DV64KC for STM32 Nucleo - STMicroelectronics 

Useful link for antennas:

How to design a 13.56 MHz customized antenna for ST25 NFC / RFID Tags - Application note

[Schuyler]

Hi @JDEME 

I've seen the size of the antenna, but I haven't found out what is the inductance L of this antenna? The manual only shows the antenna of the ST25T series, so what is the inductance of the ST25DV antenna?

[JDEME · Accepted solution]

Hello,

The inductance should be around 5.4µF (for some designs around 4.7µH for the ST25DV)

Regards,