Shenzhen DTB RFID Co., Ltd.
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What are the Factors that Affect the Reading Distance of RFID Tags?

1. RFID tag is widely used

With the continuous development of technology, the concept of logistics network is no longer unfamiliar to everyone, and many industries or companies are very interested in using RFID tags to manage fixed assets. Generally speaking, a complete set of RFID asset management solutions includes RFID fixed asset management systems, RFID readers, RFID printers, RFID tags, etc.  RFID tag is an important link in the entire system. So, if there is a problem with the RFID tag, the progress of the entire system will be affected. What are the factors that affect the reading distance of RFID tags?The following is a summary for you.


2. The factors that affect the reading distance of RFID tag

(1) It is related to the radio frequency power of the RFID tag reader. If the radio frequency power is small, the reading distance of RFID tag will be close, on the contrary, if the power is high, the reading distance will be far;


(2) It is related to the gain of the RFID reader antenna. If the gain of the reader antenna is small, the reading distance will be close, on the contrary, the gain of the reader antenna is high, the reading distance will be far;


(3) It is related to the degree of coordination between the RFID tag, the antenna polarization direction and the relative angle. If the direction is consistent, the reading and writing distance is far; if not, the reading distance is close;


(4) It is related to the attenuation of the feeder unit. The greater the attenuation, the closer the reading distance, on the contrary, the smaller the attenuation and the further the reading distance;


(5) It is related to the total length of the feeder connecting the reader and the antenna, the longer the feeder, the closer the reading and writing distance, on the contrary, the shorter the feeder and the further the reading distance.

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