What are the characteristics of LF, HF and UHF RFID card?

Time：2023-05-03 15:32:28

When it comes to RFID radio frequency card we may not be familiar with, but when it comes to smart card with chip, IC card, access card, membership card, work card and RFID passive electronic label products, you may suddenly see the light, oh, the original this is called radio frequency card?  Nowadays, RFID RF card has been widely used, but the reading distance is far and near, so do you know the different frequency of RFID RF Carter point?  Today, with RFID card manufacturer RZX Technology to understand the following:

The typical working frequency of low frequency radio frequency card is 125K and 134.2K, this frequency of smart card does not have large data storage capacity, read out slowly, usually do not have the function of writing data, communication distance within 10 cm, of course, if you add power amplifier such as can reach 80 cm or so, but its biggest problem is the security issue that we are increasingly concerned about, Now many cell ID keychain, ID access card are the frequency of the RF card,  easy to be copied and cloned, so there is a trend of gradual elimination, of course, its advantages are low cost, strong anti-interference ability, RFID low frequency tag in animal tracking there are certain applications.

(Illustration: ID card inlay, 2X5 format)

(Illustration: ID card inlay 5X5 format)

The main operating frequency of high-frequency RF cards is 13.56MHZ.  There are many protocols on high-frequency cards.  Common ISO communication protocols of systems include: ISO7816, 14443 a, 14443 b, 15693, etc., this kind of smart card application is already very mature, it also has faster data read write speed, 0 to 10 cm distance is very applicable for requiring close communication, like everyone's second generation id card, the city's public transportation card, card, book, NFC tags, consumer electronic tags and other products work in this band.  With the progress of science and technology, in recent years, the high frequency CPU chip RF card with strong anti-copy and anti-crack safety performance has gradually replaced the M1 chip and become the new favorite of the high frequency card, gaining more and more applications.

(Illustration: High frequency M1 inlay, 2X5 format)

(Illustration: high frequency, low frequency, dual frequency RF card inlay)

Ultrahigh frequency card generally refers to the electronic label working in 433M and 860-960M frequency band, and the protocols mainly include 18000-6B and 18000-6C.  The typical characteristics of this kind of smart card and electronic label are fast reading speed, long distance and strong anti-conflict ability, which are widely used in logistics pallet card, turnover box card and warehouse inventory card.  RFID vehicle management, jewelry management, archives management, washing management and other fields, UHF radio frequency card unique remote reading and multi-label group reading function, so that it is easier to adapt to the complex environment, according to the actual application can be packaged into cards, printed labels, special labels and other complex forms.

(Photo: Common appearance of RZX UHF Card)

（Illustration: RFID ultra high frequency card mold diagram）

Therefore, in the purchase of RFID radio frequency card according to the actual budget and reading distance and other requirements to choose their own product frequency and appearance, more related technical exchanges, welcome to pay attention to us, in the selection of problems can be at any time to telephone RFID radio frequency card manufacturer RZX technology related business personnel.​