With the popularity and application of rfid tags, rfid system in various fields of application plays an important role, which is widely used in intelligent library management, logistics management, security, animal husbandry, warehousing and logistics, electronic ticket management and so on, these applications are closely related to our lives, to our work and life has brought great convenience, rfid tags have different frequency bands, high-frequency, low-frequency, ultra-high-frequency tags of these three kinds of different frequency bands of rfid tags, their applications and characteristics are different!

Firstly, RFID LF card

The typical operating frequency of low-frequency RFID card is 125 kHz and 134.2 kHz, and the main features of this kind of RFID card are its small data storage capacity, slow reading speed, and usually does not support the write function. The communication distance is limited to 10 centimeters, although it can be expanded to 80 centimeters by adding devices such as power amplifiers. However, they are gradually being phased out in applications such as ID keyfobs and access cards in neighborhoods due to the greater security concerns, such as ease of duplication and cloning. However, low-frequency RF cards are low-cost and resistant to interference, so they still have some application value in specific areas such as animal tracking.

Second, RFID HF card
High-frequency radio frequency card operating frequency is 13.56MHZ, high-frequency card protocols, common system ISO communication protocols are: ISO7816, 14443A, 14443B, 15693, etc., the application of this class of smart cards has been very mature, it also has a faster data readout write speed, 0-10 centimeters for the requirements of the occasion of close communication is very suitable, like the second generation of identity cards, city bus cards, library tags, NFC tags, consumer electronic tags and other products are working in this band. Like everyone's second-generation ID card, the city's bus card, campus card, book tags, NFC tags, consumer electronic tags and other products are working in this band. With the progress of science and technology, in recent years, anti-replication and anti-cracking security performance of high-frequency CPU chip RF card has gradually replaced the M1 chip to become the new favorite high-frequency card, has gained more and more applications.

Third, RFID UHF card
UHF radio frequency card generally refers to the work in the 860 ~ 960M band electronic tags, protocols mainly 18000-6B and 18000-6C, this class of smart cards and electronic tags are typically characterized by fast readout speed, long distance, strong anti-conflict ability, is widely used in logistics pallet card, turnover box card, warehousing inventory card, RFID vehicle management, jewelry management, file management, laundry Management and other fields, UHF radio frequency card unique long-distance reading and multi-tag group reading function, so that it is easier to adapt to complex environments, can be packaged according to the actual application of cards, printed tags, special tags and other complex forms.

Overall, the selection of the appropriate RF card depends on the application scenario and needs. Low-frequency cards have advantages in complex environments, high-frequency cards are suitable for scenarios that require stable transmission, and ultra-high-frequency cards are suitable for applications that require wide-ranging, high-speed identification.