The difference between UHF and high frequency uhf rfid tag in application

2020-09-11 15:48:26


   With the rapid development of the Internet of Things technology, the application of electronic tags has been involved in various fields. Today we will briefly understand the difference between UHF and high frequency uhf rfid tags in the application:

   The typical working frequency of high-frequency RFID tags is 13.56MHz, which is generally passive. When the tag exchanges data with it, the tag must be located in the near-field area radiated by the RFID reader antenna. The reading distance of high-frequency tags is generally less than 1 meter. Because high-frequency tags can be easily made into a card shape, they are widely used in electronic tickets, electronic ID cards, electronic locks and anti-theft (electronic remote control door lock controllers), residential property management, building access control systems, etc.

   The working frequency of UHF tags is between 860MHz~960MHz, and can be divided into two types: active tags and passive tags. When working, the radio frequency tag is located in the far field area of ​​the antenna radiation field of the UHF reader, and the coupling mode between the RFID tag and the antenna is electromagnetic coupling. The radiated field of the UHF reader antenna provides radio frequency energy to the passive tag and wakes the passive tag. The reading distance of the corresponding radio frequency identification system is generally greater than 1 meter, typically 4 to 6 meters, and the maximum can reach more than 10 meters. Reader antennas are generally directional antennas, and only radio frequency tags within the directional beam range of the reader antenna can be read/written. Due to the long reading distance and fast data transmission rate, UHF tags are widely used in automatic identification of railway vehicles, container identification, and also in highway vehicle identification and automatic toll collection systems.

  The characteristics of high frequency electronic tags and UHF electronic tags:

   High-frequency tags are cheaper than UHF tags, save energy, have a strong ability to penetrate non-metallic objects, and the working frequency is not restricted by radio frequency control. It is most suitable for objects with high water content, such as fruits.

   UHF has a wide range of action and fast data transmission speed, but they consume more energy, have weaker penetration, and cannot have too much interference in the operation area. They are suitable for monitoring items transported from the seaport to the warehouse. Moreover, the price of UHF systems is relatively high, generally about 10 times that of high frequency systems.

The difference between UHF and high frequency uhf rfid tag in the application is shared above. Shenzhen Aotaige Technology uhf rfid tag manufacturer provides: RFID tags, uhf rfid tags, radio frequency identification tags, RFID anti-metal tags, UHF RFID label production customization.