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An antenna determines exactly where an RFID system can detect tags: the reader generates the signal, while the antennas define the read-zone boundaries through their polarization, gain and placement. A poorly selected antenna creates either gaps in the zone or stray reads from adjacent racks. We select and supply UHF antennas for each project, from compact near-field models (А6) to panel antennas for vehicle lanes (А12), with on-site verification of the read zone.
| Antenna type | Code | Gain | Read range* | Polarization | Construction | Typical application |
|---|---|---|---|---|---|---|
| Near-field — desktop, cabinet and shelving antennas | А6 | 3–6 dBi | up to 3 m | circular | compact enclosures from ~50×50 mm | tag encoding stations, smart cabinets, issuing points |
| Long-range panel antennas | А6/А9 | 5–9 dBi | up to 6–10 m | circular, less often linear | including IP67 versions for outdoor and wet areas | warehouse gates, portals, conveyors |
| Narrow-beam antennas | А9/А12 | 8–11 dBi | up to 6–8 m | circular | wall and ceiling mounting | dense zones where adjacent areas must not be illuminated |
| For vehicle lanes and access control | А12 | 9–12 dBi | up to 12 m | circular or linear | elongated enclosures, pole/frame mounting | parking areas, checkpoints, entrance lanes |
* Range depends on the reader, tag and radio environment; the table shows ranges from manufacturer specifications for commercially available antennas, while the exact read-zone boundaries are confirmed by testing.
BizData codes are our designations for standard selection configurations and are refined during project estimation.
The EPC Gen2 standard (ISO/IEC 18000-63) defines the radio interface for the 860–960 MHz range, but operating frequencies and power are governed by the national rules of the deployment country. In Kazakhstan, UHF RFID operates under the European ETSI 865–868 MHz plan; the American FCC 902–928 MHz plan does not apply here.
For an antenna, this is not a formality. An antenna is matched to its intended part of the spectrum: a panel designed for 902–928 MHz loses its match in the 865–868 MHz band, reducing efficiency and range while making the read zone smaller and unstable. A reader configured for FCC channels is a frequency-plan violation, not merely a technical problem.
The practical risk is real: the market includes antennas available only in a 902–928 MHz (US) version. An imported American antenna or reader will either fail to provide the calculated read zone or create regulatory issues. Most commercially available models come in both EU and US versions, so the first item in every specification should be the ETSI 865–868 MHz range. Learn more in our article on EPC Gen2 and ISO/IEC 18000-63.
We verify the read zone before purchase: tag and antenna-geometry tests are available in the RFID laboratory, and on-site verification is available through an RFID pilot.
Use circular polarization when tag orientation is unpredictable, such as boxes, clothing or bulk goods. Linear polarization offers more range, but only when the tag is always positioned the same way, such as on a windshield. If there is any doubt, test on the actual tagged items.
No. Kazakhstan uses the European ETSI 865–868 MHz plan. A US-version antenna loses its match in this band, reducing and destabilizing the read zone, while a reader configured for FCC channels violates the frequency plan. Order the EU version.
Use circularly polarized panel antennas in a moisture-resistant enclosure rated up to IP67. Linen in a trolley shields some tags and their orientation is random, so an even read zone matters more than maximum range. We verify the configuration using actual trolleys loaded with your linen.
It depends on geometry: a lane can be covered by one or two antennas, a warehouse gate usually needs two to four, and a tunnel or portal uses several antennas on different sides. Multiport readers support 4–16 antennas, so zones can be scaled without replacing the system core.
Send us the read-zone layout (gate, vehicle lane, portal or cabinet) and describe what must be tracked. We will propose an antenna, reader and cable-run configuration and, if needed, verify it with an on-site pilot.