Why are there three kinds of RFID: UHF, HF, LF?

The reason for the classifications of UHF, HF and LF

According to the different operating frequencies, RFID tags can be divided into low frequency (LF), high frequency (HF), and ultra-high frequency (UHF).RFID安装图

The working frequency of RFID tags not only determines the working principle of the RFID system (inductive coupling or electromagnetic coupling) and the identification distance, but also determines the difficulty and equipment cost of RFID tags and readers.RFID的超高频和高频和低频的原因

Learn more about RFID frequencies