Ferrite Sheet Antenna for Near Field Communications

Pulse Electronics' ferrite sheet antenna can be customized to the varying sizes of handset mechanics, is easy to implement, and enables safe, non-contact, wireless communication for NFC connectivity to mobile devices.

Pulse Electronics' planar ferrite sheet-based antenna has dimensions of 35mm x 50mm with a minimum thickness of 0.30mm, including the ferrite/adhesive/antenna flex layers. The magnetic field strength can be optimized by the type and thickness of the ferrite material and the design of the radiator pattern. The antenna meets EMVco specifications ensuring global interoperability and compatibility of chip-based payment cards and acceptance devices.

In order to achieve the EMVco target reading distance of 40mm it requires optimization between the mechanics and antenna. Pulse customizes its NFC antennas, matching the circuit values for the device, so tuning is all that is needed to integrate it, said Maritta Timosaari, sales and marketing director, Pulse Electronics Mobile Division.

NFC antennas are needed so mobile devices can communicate with other wireless devices for payments, access and control, credential storage and exchange, and content consumption. Pulse can optimize multi-antenna configurations with an NFC antenna for all-in-one solutions. In-house testing and measurement is done at Pulse Electronics global facilities to ensure that the antenna will perform optimally throughout its life cycle.

The NFC ferrite sheet antenna is RoHS compliant, comes packaged in trays, and is ready for volume production. It is available in a variety of sizes and can be custom configured to a customer's specifications.