RFID Overview
RFID is Radio Frequency Identification
Basic principle: Using the coupling of radio frequency and space, or reflection of radar, fulfill automatic identification of items. It is made up with Tag、Reader and Antenna.
Tag: It is made up with component and chip. Each item has only one coding affixed on it to identify item. Reader: Read and write tag info. It can be designed to fixed or portable
Antenna: transfer radio frequency signal between tag and reader.
RFID Classify
RFID can be classified to low frequency(LF)、high Frequency(HF) and ultra-high frequency(UHF).Their typical frequency respectively is lower than 135KHz、13.56KHz and 860M～960MHz.