source:Industry News Popular:rfid fpc tag release time:2022-08-12 13:46:25 Article author:yu
rfid ultra high frequency reader
1. The international common protocol for UHF is EPCglobal Class1 Gen2. The frequency of the Gen2 protocol standard is between 860-960MHz, covering all international frequency bands, so the performance of tags that comply with the ISO18000-6C protocol standard will not decrease in this range. The Gen2 protocol standard provides the 865-868MHz frequency band used in Europe and the 902-928MHz frequency band used in the United States. Therefore, the ISO18000-6C protocol standard is a truly flexible global Gen2 protocol standard.
2. There is a unified definition of power output in this frequency band (4W in the United States and 500mW in Europe). Possibly the European limit will go up to 2W EIRP.
3. Radio waves in the ultra-high frequency band cannot pass through many materials, especially suspended particles such as water, metal, and fog. In order to solve the problem of metal interference, special RFID anti-metal tags can be used on the metal surface to enhance the reading distance.
4. The antenna of the electronic tag is generally a strip and a tag or ear tag type. Antennas are available in linear and circularly polarized designs, as well as close-range near-field antennas to meet the needs of different applications.
5. This frequency band has a long reading distance, but it is difficult to define the reading area.
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