UHF RFID Antennas

UHF antennas are available with omni-directional and/or linear-directional radio wave patterns. For personnel mustering / accountability, most typically omni-directional antennas are utilized.

Antennas should be within 20’ of the UHF RFID reader for maximum performance. Each antenna or group of antennas is defined in the RFID database as a discreet physical location.

RFID antennas have a maximum detection-distance of approximately 40’, however, detecting personnel tags with UHF RFID is non-trivial. Human bodies within a detection zone and the proximity of ID cards or key fobs on-personnel both pose significant challenges for UHF RFID.

If detection zone(s) are intended to function passively, there should be four (4) antennas all angled at different orientations to saturate a specific walk-thru space with maximum radio wave coverage. The objective is to attain the most direct and unimpeded line-of-sight from antennas to tags as possible.

For muster points where personnel will present their RFID credentials in close-proximity, a single RFID antenna should be sufficient.

UHF antennas are available with manufacturing to support usage indoors and/or outdoors.