UHF Near-Field RFID Antenna – 600x300mm

A UHF near-field RFID antenna is designed to provide RFID reading and writing within a localized area at close range. It uses near-field electromagnetic coupling to communicate with compatible UHF RFID tags, making it suitable for applications where items need to be identified individually within a defined reading zone. Common applications include item-level inventory, retail product identification, document tracking, and small-item management.

The main difference is how they communicate with RFID tags and how the reading area is designed. Near-field RFID antennas use near-field coupling and are generally suited to close-range identification within a localized area. Far-field RFID antennas rely on radiated electromagnetic waves and are commonly used when tags need to be read over a wider area or at greater distances. The right choice depends on the required reading distance, tag placement, item spacing, and application environment.

This antenna operates at 902–928 MHz, has a 50 Ω impedance, and uses an SMA female connector. For compatibility, ensure that the RFID reader supports the same frequency band and that the connecting cable and RF interfaces are suitable for the installation.

Circular polarization can help reduce sensitivity to tag orientation compared with linear polarization in many RFID applications. This can be useful when tagged items are not consistently aligned. Actual reading performance still depends on tag design, placement, distance, and surrounding materials.

The 100W maximum power rating indicates the antenna’s stated maximum power-handling capacity. It does not mean that the RFID reader must operate at 100W. The reader’s output power should be configured according to the antenna specifications, the complete RF system, and applicable radio regulations.

This antenna is specified for indoor use. Its listed operating temperature range is -20°C to +60°C, but temperature tolerance alone does not establish outdoor suitability. For outdoor installations, a model specifically rated for the required environmental conditions should be considered.