Shenzhen DTB RFID Co., Ltd.
Shenzhen DTB RFID Co., Ltd.
RFID Card
Transportation,Access Control,Payment,Loylty etc.
Learn More

RFID Technology and Its Working Principle (Part II)

A complete RFID system consists of a reader, an electronic tag or the so-called transponder and an application software system. The working principle is that the reader transmits a specific frequency of radio wave energy to the transponder to drive the transponder circuit and send out the internal data. At this time, the reader receives and decodes the data in sequence, then sends data to the application program for corresponding processing.


In terms of the communication and energy induction mode between the RFID card reader and the electronic tag, it can be roughly divided into inductive coupling and back scattering coupling. Generally, low frequency RFID mostly adopts the first mode, while the second mode is mostly used for higher frequency RFID.


An RFID reader can be a reading or reading/writing device according to the different structure and technology used. The RFID reader is the information control and processing center of RFID system. Readers are usually composed of coupling module, transceiver module, control module and interface unit. Half duplex communication is generally used for information exchange between the reader and the transponder. Meanwhile, RFID readers provide energy and timing sequence to passive transponders through coupling. In practical application, the management functions such as collection, processing and remote transmission of object recognition information can be further realized through Ethernet or WLAN. The transponder is the information carrier of the RFID system. At present, transponders are mostly passive units composed of coupling elements (coils, microstrip antenna, etc.) and microchips.

Share to:


Related Blogs

Related RFID Products at DTB
  • RFID Vinyl Wristband
    RFID wristbands combine RFID technology with good looking and practical housings. They can be used as a wristwatch and make using RFID technology easy.
    Learn More >
    RFID Vinyl Wristband
  • Classic Festival Fabric Wristband
    With the popularity of RFID cashless solutions, RFID fabric wristbands are becoming more and more popular in the market. The classic RFID fabric wristband is mainly made by 3 kinds of processes.
    Learn More >
    Classic Festival Fabric Wristband
  • RFID Card Prelam
    DTB RFID designs various kinds of RFID prelam to meet different layout standards. The prelam edge made by DTB RFID is neat, the surface is smooth and flat, and the chip position is neat and consistent.
    Learn More >
    RFID Card Prelam