High sensitivity, z-axis low-profile NFC antenna

March 19, 2014 // By Graham Prophet
With compact dimensions and low profile (height less than 3.2 mm), the ZC1003HF Series, for NFC applications, is suitable for slim Smartphone designs where it can extend communication distance with enhanced efficiency over ground metal planes or battery-mounted devices.

To meet the growing demands for NFC antennas, Spanish company Premo has developed a new z-axis SMD ferrite antenna suitable for signal reception/transmission at 13.56 MHz.

The ZC1003HF series is a highly sensitive and compact solution (10 x 10 x 3.1 mm) designed for those NFC applications where size of components is critical. This antenna requires less board space than PCB printed loop antennas and offers up to 30% longer reading distances. the Z-axis coil design offers an outstanding electrical performance and mechanical robustness, providing excellent reliability, as it is designed and validated to automotive standards.

ZC1003HF series is offered with 2.5 µH/13.56 MHz inductance value and can be tailored according to customer’s specifications.

The antenna uses a high performance NiZn ferrite core material (>10 6 Ohm·m) and low initial permeability to work at high frequency. It provides very stable performance over wide temperature range (-40ºC to +100ºC). The ZC1003HF series offers better performance than metal parts ground planes or batteries devices.

Its surface mount (SMD) and tape and reel packaging configuration allows an easy integration in an automatic printed circuit board assembly process, avoiding handling of the piece that could damage winding wire of the piece.

ZC1003HF can be used in RFID applications with ISO15693 (vicinity: I-CODE), ISO 14443A&B (proximity: MIFARE) interface, ISO18092, and Felica.

The product has been designed to match NFC chipsets from NXP: MF-RC500, MF-RC530, MF-RC531, PN511, PN512, PN531, PN532, PN533, PN544, PN547; ams: AS3953; ST: M24LR16E-R, Melexis: MLX90121, Texas Instruments: TRF7960, TRF7970A.

Premo; www.grupopremo.com