UHF RFID Mini Antenna IDTS-RA3085 (3 dBi)
An 85 × 85 mm, 75 g UHF RFID antenna with 3 dBi gain and a very wide 128° × 120° beam, for short-range reading inside smart cabinets, on production lines, on machines and in embedded reader enclosures.
₹11,000
per piece + 18% GST
₹12,980 incl. GST
Minimum order: 1 piece · buy online and pay by NEFT or UPI, or request a quote
View datasheet PDF · 182 KB- 7-day replacement · 1-year warranty against manufacturing defects
- Blue Dart next-day delivery
- Buy online, pay by NEFT or UPI · in-stock items are dispatched the same day after payment · shipping ₹300 per kg + GST
Key features
- Small 85 × 85 × 21 mm housing, 75 g
- 3 dBi gain, wide 128° × 120° beam for short-range zones
- Dual band: 865–868 MHz (India, EU) and 902–928 MHz (US)
- Screw mount or magnet mount
- Circular polarisation, axial ratio ≤3 dB
- SMA-K connector on a side-exit cable
- Frequency
- 865–868 MHz / 902–928 MHz
- Operating temperature
- -40 °C to +55 °C
Overview
Where a 3 dBi mini UHF RFID antenna fits
The IDTS-RA3085 is for places a standard panel will not fit: inside a tool or medicine cabinet, beside a conveyor, on a machine frame or within an enclosure that a system builder designs around a reader module. At 85 × 85 × 21 mm and 75 g it is palm-sized, and it can be screwed down or held with its magnet mount on a steel surface.
A short, wide read zone
The low gain is deliberate. With 3 dBi and a 128° × 120° beam the field spreads wide but stays close to the antenna, which is what you want when a cabinet should read only its own shelf or a workstation only the tray in front of it. Circular polarisation lets tags be read whether items lie flat or stand upright. When the zone has to be several metres deep, a higher-gain panel is the better fit.
Typical uses
- Production lines: confirming a tagged part, jig or carrier as it reaches a station.
- Smart cabinets: one antenna per shelf or compartment to see what was taken out or put back.
- Access control: short-range reading of UHF cards or tags at a door or turnstile.
- Logistics: checking tagged cartons at a packing or dispatch table.
- Embedded devices: a compact external antenna for OEM reader modules.
Connecting it
The SMA-K connector sits on a side-exit cable. The antenna covers 865–868 MHz for India and Europe and 902–928 MHz for the US. Its maximum input power is 5 W, lower than larger panels but above the output of typical UHF fixed readers.
Several mini antennas can share one reader through its antenna ports, so a four-shelf cabinet can run from a single 4-port UHF reader. Our RFID antenna guide shows how gain and beam width shape a zone, and larger panels are listed under RFID antennas.
Typical applications
- Smart cabinets
- Production line stations
- Access control readers
- Packing and dispatch tables
- Embedded reader modules
Specifications
Datasheet (PDF)| Frequency | 865–868 MHz / 902–928 MHz |
|---|---|
| Gain | 3 dBi |
| Beam width | 128° horizontal / 120° vertical |
| Polarisation | Circular |
| Axial ratio | ≤3 dB |
| VSWR | ≤1.5 |
| Impedance | 50 Ω |
| Max input power | 5 W |
| Connector | SMA-K, side exit with cable |
| Reflector | Low-loss PCB |
| Dimensions | 85 × 85 × 21 mm |
| Weight | 75 g |
| Radome | ABS, black |
| Mounting | Screw mount or magnet mount |
| Operating temperature | -40 °C to +55 °C |
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