The dual frequency passive RFID cards are come in three combinations: HF-UHF, HF-LF and UHF-LF. The HF inlay is in accordance with the ISO 14443 standard (which can also be used for NFC applications), while the UHF inlay complies with the ISO 18000-6C standard and the LF inlay operates at 125 or 134 kHz compliant with proprietary air-interface standards for access control.
Dual frequency rfid smart card combines two different RFID frequencies to get the best of both technologies. The merchandise may combine the UHF Gen 2 functionality for long read ranges with HF or LF technologies that offer compatibility with formerly current techniques, large user memory, high-security functions and, thanks to the shorter read ranges, advantages in terms of privacy. Additionally HF/LF can be provides. The Alien Technology Higgs-3 is the chip used for the UHF part, while the most used HF ICs consist of: NXP ICODE SLI (ISO 15693), Legic Prime MIM256 (proprietary), NXP MIFARE Classic 1K (ISO 14443 A) and NXP MIFARE DESFire EV1 (ISO 14443 A). Personalization providers include various types of printing, laser engraving, slot punching and magnetic stripe.
A dual frequency rfid card has long been anticipated by the marketplace to unleash the full power of RFID. By providing the equipment that expand the RFID value chain to include the ability for brand manufacturer to immediately connect to the end customer is a milestone event for the whole business. To combine all the benefits of UHF and NFC into a single chip tag is undoubtedly an exquisite resolution. To embrace the latest ISO standards for maximum security in both frequencies opens doors to opportunities beyond the retail store originally targeted and into the pharmaceutical as well as healthcare spaces.