The majority of UHF systems use the 860-to-960-megahertz frequency range. UHF tag ranges are usually measured in feet and meters. Although the tags are suitable for items that need rapid identification, liquids have a major effect on the tags. The UHF platform is becoming popular for commercial processes and companies looking for logistics changes due to the distance, reduced price, and fast transfer levels that arrive with it.
Passive UHF tags
Thousands of applications use passive UHF RFID systems, including tool monitoring, IT network monitoring, sprint timing, and laundry planning. Because of the tags’ long read range and low cost, innovative programs are often explored.
Active UHF tags
Active UHF RFID systems do not rely on passive attenuation to operate. Rather, they are powered by a battery bank. These tags do not have to be stimulated by an RFID reader since they include a battery. Hence, they promptly beacon at regular intervals. The internal battery has a very long read range, with beacons that can be detected from over 100 meters away.
Long Reading Distance
As compared to LF and HF RFID tags, UHF RFID tags have a much longer read range. UHF RFID tags are appropriate for users that require reading many objects at once, such as containers of merchandise passing through a factory door or racers crossing a finish line, due to their high processing speed.
UHF RFID tags have a read range of up to 50 feet, which is considerably longer than LF and HF tags. The expanded read range allows RFID to be used in new ways, such as automated payment collection and park access control.
UHF is not only found in warehouses and laboratories, however. UHF has made its way through the world of sports, where it is frequently used for race scheduling and keeping track of costly game tickets.
Advantage and Disadvantage
The advantages of UHF tags can be used in a wide range of real-world applications. The options seem limitless, from reagent monitoring to digital payments. In reality, because of its ability to communicate with electronics, this tag is becoming extremely prevalent among marketers looking to link digital and physical experiences.
UHF tags have several disadvantages: they run at a higher frequency, resulting in shorter ranges that amplify rapidly and are highly susceptible to damage. Since water absorbs UHF waves, these tags cannot be read when connected to products that contain water or animal materials. Metals just do not fit well with UHF tags.
Many companies prefer HF because it is seen as a more cost-effective alternative to satellite. HF can also enable data transfer, which has brought new development possibilities.
Because of its short reading range, HF is often used in industrial settings to avoid some of the possible disturbance that long reading distances can create when metal surfaces are involved.
Unlike UHF or Ultra High Frequency, HF frequencies benefit from moving through objects with high water content, such as humans or animals.