source:hf RFID Popular:rfid fpc tag release time:2020-09-02 17:16:53 Article author:sznbone
According to different operating frequencies, RFID tags can be divided into LF, HF, UHF and microwave. The working principles of RFID in different frequency bands are different.
LF and HF frequency band RFID electronic tags generally use the principle of electromagnetic coupling, while UHF and microwave frequency bands generally use the principle of electromagnetic emission.
Each frequency has its characteristics and is used in different fields, so,in order to use it correctly, you must choose the right frequency.
The HF RFID uses electromagnetic induction to exchange data. Compared with the LF band, the antenna does not require a large number of coils, so a thin and compact antenna can be manufactured easily. Since the HF band uses 13.56 MHz , the communication distance is relatively short. The HF band is suitable for relatively short-distance applications. The reading distance is generally less than 1 meter.
Since the tag can be easily made into a card shape, it is used widely in electronic tickets, electronic ID cards, electronic locks and anti-theft, residential property management, building access control systems, etc.
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