Antenna design is an essential part of implementing an RFID application, so proper antenna performance is critical to achieving optimal read range and reliability, and proper antenna design also helps reduce time to market. NXP, a leader in the field of integrated circuits for a wide range of proximity standards, has prepared a convenient calculator that can help you calculate all the necessary RFID antenna parameters.
RFID reader modules requiring an external antenna

- New
- MIFARE® DESFire
- 13,56MHz
NANO-RS RFID reader module
The NANO-RS module is a miniature RFID proximity card reader module of the MIFARE® Classic, Ultralight, DESFire, Plus, ICODE® SLI family operating at the 13.56MHz frequency.

- MIFARE® DESFire
- 13,56MHz
- UART
MM-R5 RFID reader module
MM-R5 is a RFID reader module from the MIFARE® Classic, Plus, Ultralight C, DESFire, ICODE SLI, iCLASS (CSN only) families, operating on frequency of 13.56MHz. Module have also functionality to program cards and NFC tags compliant with the ISO/IEC 14443 standard. Module has an UART interface with voltage levels compliant with TTL.