Dynasys engineers can assist you in developing your applications using High Frequency RFID. We design custom HF antennas as required for special applications. Our engineers can also assist you in developing custom readers using Texas Instrument reader ICs such as the TRF7960.

The High Frequency RFID devices available today typically operate at 13.56 MHz. The original devices developed as HF RFID was known as MIFARE and I-Code from Philips Semiconductor and Tag-it from Texas Instruments. Although these devices all operated on a center frequency of 13.56 MHz their air interface protocols and data structures were totally incompatible with each other.

In 1999 and 2000, Philips and TI agreed to share some of their intellectual property and create the ISO 15693 “Vicinity” card standard and the ISO 14443 “Proximity” card standard. These ISO “specs” currently define the HF RFID smart card and smart label components.

HF RFID devices work on magnetic wave coupling principles, similar to that of primary-secondary windings in transformers, not as conventional radio wave theory, as we know it. HF RFID Readers are matched to loop antennas that convert time-varying electrical current into the magnetic radiation field pattern. Nearby HF tags that are in the field get a current induced in their winding and it is this induced current that provides power for the passive chip to operate.

High Frequency RFID devices have anti-collision intelligence that allows hundreds of tags to operate concurrently in the same antenna field.

Dynasys carries many different types of HF RFID devices. Please call your Dynasys Sales Engineer, a highly experienced expert in selecting the proper devices for your application.

Learn more about HF RFID at:
ISO 15693 and What it Means to You
Understanding RFID Frequencies
RFID Labels for Today’s Packaging