NFC antenna at 3.2 mm high targets smartphones

March 18, 2014 // By Julien Happich
With a profile less than 3.2 mm high, the ZC1003HF series Z-axis antenna is well suited for slim smartphone designs.

It improves communication distance for near-field communication applications such as cashless payment, physical access, driver identification, peer-to-peer file sharing, and credential storage and exchange.

The highly sensitive antenna measures only 10 x 10 x 3.1 mm — it requires less board space compared with PCB printed loop antennas, and offers up to 30% longer reading distances, claims manufacturer Premo. The ZC1003HF series is offered with 2.5 µH at 13,56 MHz inductance, but can be tailored to customer’s specifications.

The antenna includes a high performance NiZn ferrite core material (>10 6 Ohm·m) and low initial permeability to work at high frequency. It provides a very stable performance in a wide range of temperature from -40ºC to +100ºC. The antenna offers better performance over 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.