9dBi Underground UHF RFID Antenna

An 865–868 MHz antenna is designed for UHF RFID and low-power wireless applications operating in the European ETSI SRD band. Typical uses include UHF RFID readers (EPC Gen2 / ISO 18000-6C), asset tracking, warehouse management, access control, smart retail, race timing, and IoT/M2M systems deployed in Europe and other regions following ETSI regulations.
Airplux offers this band across multiple product families: the ETSI 865–868 MHz RFID antenna line (3–15 dBi PCB, panel and mat antennas), near-field RFID antennas, narrow-beam antennas, and ETSI UHF integrated reader antennas. For example, the 3 dBi circular-polarized PCB antenna APRIA8003CM-137 suits compact desktop readers, while high-gain panel models support long-range portal and gate applications.

ETSI 865–868 MHz antennas are tuned for the European UHF RFID band (ETSI EN 302 208), while FCC 902–928 MHz antennas cover the North American band (FCC Part 15). The two bands do not overlap, so an antenna optimized for one will have degraded VSWR, gain and read range on the other. Choose the version that matches your reader’s regional profile.
Airplux manufactures both variants with matching mechanical designs — e.g., the ETSI 865–868 MHz panel series and the FCC 902–928 MHz series are available at the same gain levels (3–15 dBi). For global or multi-region deployments that need one SKU for both markets, the wideband UHF 860–960 MHz antenna line covers both bands in a single antenna, ideal for asset tracking and smart retail projects shipped worldwide.

Choose circular polarization when tag orientation is unpredictable — pallets, cartons, race bibs, clothing items — because a circularly polarized antenna reads tags at any orientation at the cost of ~3 dB of link budget. Choose linear polarization when tag orientation is fixed and you want maximum read range, such as conveyor lines with tags always presented the same way.
Most Airplux 865–868 MHz PCB and panel antennas are circularly polarized (e.g., APRIA8008CE 8 dBi smart-cabinet antenna, APRIA8003CM-137 3 dBi PCB), which is why they perform reliably in retail, warehousing and document management where items arrive at random angles. The flexible race-timing mat antenna APRIA8007LJS is linearly polarized, optimized for bib tags worn horizontally by runners.

UHF RFID antennas are used in marathon timing systems to detect RFID tags carried by runners as they cross designated timing points. Multiple antennas can be arranged around a start line, finish line, or intermediate checkpoint to create a defined reading zone. The Airplux APRIA8009CL features 9 dBi gain, circular polarization, and an 80° horizontal by 40° vertical beamwidth, making it suitable for evaluation in race timing installations. Actual timing accuracy depends on antenna placement, tag design, reader configuration, and system synchronization.

An IP65-rated antenna enclosure is dust-tight and protected against water jets under specified test conditions, but IP65 does not mean the antenna is waterproof or suitable for permanent burial. The Airplux APRIA8009CL has an ABS radome and an IP65 rating, which can support installations exposed to dust and water jets. For underground use, the complete installation must also account for drainage, standing water, soil pressure, cable entry protection, and the material covering the antenna.

Underground RFID reading performance depends on the antenna’s gain and polarization, tag sensitivity, reader power, installation depth, and the materials between the antenna and tag. Soil moisture, metal structures, concrete reinforcement, and other nearby materials can also affect RF propagation. The Airplux APRIA8009CL provides 9 dBi gain and circular polarization, but the final installation should be tested with the actual ground structure and RFID tags.