ST25 NFC/RFID Antennas

ST proposes a wide range of ready-to-use, dual-interface antenna reference boards featuring ST25 Dynamic NFC tags connected to an 13.56 MHz etched RF antenna on one side, and to an I²C bus on the other.

These are a very practical solution for system designers who need to evaluate and test the capabilities and performance of their applications.

eDesignSuite: Interactive Simulations & Automatic
Schematics, Trying It Means Loving It


eDesignSuite is a comprehensive set of easy-to-use design-aid utilities ready to help you streamline the system development process with a wide range of ST products.

NFC/RFID Calculators

Choose design tool:

NFC Inductance

Input geometry and substrate properties
Get antenna impedance

UHF Link Budget

Enter forward and reverse link characteristics
The tool returns link budget estimate

NFC Tuning Circuit

Enter antenna parameter and matching target
Select the topology of the matching network
The tool returns component values for the desired design targets