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Engineered for compact IoT gateways, industrial sensors, and handheld LoRaWAN devices operating in the 868 MHz ISM band, this stubby rubber duck antenna delivers reliable omnidirectional performance in a space-constrained form factor. The integrated 90-degree SMA male right-angle connector eliminates cable strain on vertical PCB edges and enables flush mounting against enclosures—critical for wearable tags, smart meters, and DIN-rail modules where clearance is <15 mm. As an ISO-certified manufacturer serving Fortune Global 500 partners across 80+ countries, Zhenjiang Binjiang Electronic provides full OEM customization of frequency, gain, connector orientation, and housing color with functional prototypes delivered within 5–7 business days. Every unit undergoes individual VSWR validation and mechanical torque testing to ensure field reliability in harsh industrial and outdoor environments.
Parameter | Specification | ||
Center Frequency | 868 MHz | ||
Bandwidth | 863 – 870 MHz (EU ISM Band) | ||
Gain | 2 dBi | ||
VSWR | ≤ 1.5:1 | ||
Impedance | 50 Ω | ||
Polarization | Vertical | ||
Horizontal Beamwidth | 360° | ||
Max Input Power | 50 W CW | ||
Connector | SMA Male Right Angle (90°) | ||
Housing Material | TPE Rubber Overmold + Brass Inner Core | ||
Dimensions | Ø10 mm × L48 mm (excluding connector) | ||
Weight | 12 g | ||
Operating Temp | -40 °C to +85 °C | ||
Certifications | CE, FCC Part 15B, ROHS, ISO 9001 | ||
● Space-Saving Right-Angle Design: 90° SMA male connector routes RF signal parallel to device surface, reducing vertical profile by 60% versus straight connectors—enables installation in tight enclosures, wearables, and panel-mounted sensors.
● Optimized 868 MHz ISM Performance: Factory-tuned for EU LoRaWAN/Sigfox bands (863–870 MHz); VSWR ≤1.5:1 ensures >95% power transfer without external matching networks or field tuning.
● Rugged Rubber Duck Construction: Flexible TPE overmold absorbs shock, resists UV degradation, and maintains flexibility from -40°C to +85°C; survives repeated bending (>1,000 cycles @ 90°) without conductor fatigue.
● True Omnidirectional Coverage: Uniform 360° horizontal radiation pattern eliminates null zones in dense sensor networks; ideal for mesh topologies where node orientation varies unpredictably.
● No-Cable Integrated Assembly: Eliminates pigtail loss, connector interfaces, and assembly labor; direct SMA mate reduces failure points and simplifies compliance testing for certified end products.
● OEM-Friendly Customization: Frequency retuning (433/868/915 MHz), gain adjustment, connector type/orientation, and housing color available; MOQ as low as 50 units for pilot programs.
● Compliance-Ready Out-of-Box: Pre-certified for CE/FCC emission limits; includes test report and DoC template to accelerate your product’s regulatory approval timeline.
● LoRaWAN Sensor Nodes & Gateways
● Smart Metering (Gas/Water/Electric) AMI Systems
● Industrial IoT Asset Trackers
● Agricultural Soil Moisture Sensors
● Building Automation BACnet/Zigbee Devices
● Wearable Safety Tags & Beacons
● Parking Occupancy Detectors
● Cold Chain Temperature Monitors
● Utility Pole-Mounted Monitoring Units
● Retail Inventory RFID Readers
As a trusted supplier to Fortune Global 500 enterprises with 99% positive feedback on Alibaba International and deployments in 80+ countries, Zhenjiang Binjiang Electronic combines factory-direct pricing with aerospace-grade RF reliability. Our vertically integrated antenna design lab, anechoic chamber validation facility, and ISO-certified production line ensure your 868 MHz stubby antenna meets exacting performance specs—with zero compromise on quality, compliance, or delivery timeline.
● Frequency retuning: 433 MHz / 868 MHz / 915 MHz / Custom ISM bands
● Gain optimization: 0 dBi / 2 dBi / 3 dBi variants
● Connector options: SMA / RP-SMA / U.FL / MMCX / MCX (straight or right-angle)
● Housing colors: Black / White / Gray / Custom Pantone
● Integrated ESD protection diodes
● Reinforced strain relief boots for high-flex applications
● Private labeling and restricted distribution agreements
● Prototype delivery within 5–7 business days
● Small batch MOQ from 50 units; volume scaling to 50K+/month
Why choose a right-angle connector over a straight SMA?
Right-angle connectors reduce vertical clearance by 60%, enabling flush mounting against enclosure walls or PCB edges where headroom is limited (<15 mm). This prevents antenna protrusion that snags during installation or violates IP sealing requirements. Electrically identical to straight variants, but mechanically optimized for space-constrained IoT designs. Torque spec remains standard 0.5 N·m for reliable mating.
Is this antenna suitable for both indoor and outdoor 868 MHz deployments?
Yes. The TPE rubber housing is UV-stabilized and waterproof (IP65 equivalent when mated), surviving rain, dust, and temperature extremes from -40°C to +85°C. Indoor performance matches outdoor specs due to consistent dielectric properties across humidity ranges. For submerged or high-pressure washdown environments, specify IP67-sealed variant during quoting.
Can I use this antenna at 915 MHz for North American LoRaWAN?
Standard 868 MHz version covers 863–870 MHz only. For 902–928 MHz operation, request our 915 MHz-tuned variant (same mechanical form factor). Retuning adjusts internal radiator length and matching network; VSWR ≤1.5:1 guaranteed across full NA ISM band. No additional tooling charge for frequency shift; samples ship in 5–7 days.
How does the 2 dBi gain compare to longer whip antennas?
2 dBi represents optimal trade-off between size and range for stubby form factors. Longer whips achieve 3–5 dBi but require >100 mm vertical clearance and are prone to breakage. Our 48 mm stubby maintains >90% efficiency of full-size whips while surviving 1,000+ bend cycles. Ideal for battery-powered nodes where durability outweighs marginal range gains. Link budget calculators available upon request.
What testing validates performance before shipment?
Every unit undergoes: (1) Individual VSWR sweep (863–870 MHz), (2) Mechanical torque verification on SMA interface (0.5 ±0.1 N·m), (3) Flex cycle test (sample per batch: 1,000 bends @ 90° without failure). Sample units receive full 3D radiation pattern measurement plus environmental stress screening (-40°C/+85°C thermal cycling, 95% RH soak). Serialized test reports retained 10 years; Certificate of Conformance included. Manufacturing follows ISO 9001 with IPC-A-610 Class 2 workmanship.
Do you provide integration support for my specific IoT platform?
Yes. We maintain validated compatibility data for Semtech SX126x/SX127x, ST STM32WL, Microchip ATmega RF, and Nordic nRF91 series transceivers. Integration guides include recommended PCB keep-out zones, ground plane dimensions, and impedance matching tips. Engineering consultations available within 24 hours under NDA. Custom evaluation kits with pre-matched antennas ship alongside prototypes to accelerate your design validation phase.
Available for OEM/ODM customization. Full technical datasheet, 3D CAD model, and IoT platform integration guide provided upon request.
Contact: Minna Liao
Email: minna_liao@bjdz.top
WhatsApp / WeChat: +86 186 2128 3578
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