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The U.FL 902-928MHz Outdoor Waterproof Antenna is a compact, IP67-sealed microstrip patch antenna designed for space-constrained IoT devices, LoRaWAN sensors, and industrial M2M modules operating in the North American ISM band. Delivering 3 dBi gain with VSWR ≤ 1.5 across 902–928 MHz, this PCB-based antenna ensures reliable link performance while maintaining an ultra-low profile suitable for embedded or enclosure-mounted installations.
The radiating patch element is fabricated on FR4 substrate with an integrated ground plane and encapsulated in a UV-stabilized, waterproof ABS radome rated IP67 for long-term outdoor exposure. The antenna terminates with a standard U.FL (IPEX MHF1) connector via 1.13mm micro-coaxial cable, enabling direct board-level connection to RF modules without bulky external connectors. Custom cable lengths from 50 mm to 300 mm are available to accommodate diverse PCB layouts and enclosure designs.
Manufactured under ISO 9001 with 100% VSWR screening, every unit is RoHS and REACH compliant. OEM customization—frequency tuning, cable length, U.FL orientation, and private labeling—is available from 500 pcs with rapid prototyping to accelerate your product certification and time-to-market.
Parameter | Specification | ||
Frequency Range | 902 – 928 MHz | ||
Gain | 3 dBi | ||
VSWR | ≤ 1.5 | ||
Impedance | 50 Ω | ||
Polarization | Linear | ||
Radiation Pattern | Broadside / Hemispherical | ||
Beam Width (E/H-plane) | ~120° | ||
Max Input Power | 5 W | ||
Antenna Type | Microstrip Patch (PCB/FR4) | ||
Dimensions | 45 × 45 × 12 mm | ||
Radome Material | UV-stabilized ABS | ||
Ingress Protection | IP67 (fully potted/sealed) | ||
Connector | U.FL / IPEX MHF1 | ||
Cable Type | 1.13mm Micro-Coaxial (50 Ω) | ||
Cable Length | 100 mm (standard); 50–300 mm custom | ||
Mounting | Adhesive / Screw / Internal PCB mount | ||
Operating Temperature | −40 °C to +85 °C | ||
Storage Temperature | −40 °C to +100 °C | ||
Humidity | ≤ 95% RH | ||
Certifications | RoHS / REACH Compliant | ||
Weight | Approx. 25 g (with cable) | ||
● 902-928 MHz ISM Band Optimized – Precision-tuned for North American LoRaWAN, RFID, and smart metering applications with VSWR ≤ 1.5 ensuring maximum power transfer and regulatory compliance.
● IP67 Waterproof Sealing – Fully potted ABS radome protects the PCB patch element against rain, dust, condensation, and temperature cycling for reliable outdoor deployment in harsh environments.
● Ultra-Compact U.FL Interface – Standard IPEX MHF1 connector with 1.13mm micro-coax enables direct board-level integration, eliminating bulky SMA/FME connectors and saving valuable enclosure space.
● 3 dBi Broadside Radiation – Hemispherical coverage pattern ideal for dense urban IoT node clusters and indoor/outdoor gateway deployments requiring omnidirectional connectivity.
● Low-Profile PCB Construction – Integrated ground plane on FR4 substrate ensures stable impedance matching regardless of mounting surface, with total height under 12 mm for flush installation.
● OEM Customization Ready – Cable length, U.FL orientation, frequency tuning, and private labeling available from 500 pcs with HFSS simulation and anechoic chamber validation included.
● RoHS & REACH Compliant – Lead-free, halogen-free materials with full test documentation for seamless export to EU, North American, and Asia-Pacific markets.
●LoRaWAN end-node sensors for smart city and agriculture (902-928 MHz)
●Industrial IoT telemetry and condition monitoring devices
●Smart metering AMI gas/water/electricity meters (North America)
●Asset tracking RFID readers and logistics handheld terminals
●Environmental monitoring stations for air quality and soil moisture
●Building automation HVAC controllers and occupancy sensors
●Security alarm panels and wireless perimeter intrusion detectors
●Drone/UAV telemetry receivers for FPV and command links
●Retail POS systems and digital signage wireless backhaul
●Wearable health monitors and medical IoT devices (space-constrained)
As a Fortune Global 500 supply-chain partner exporting to 80+ countries, Zhenjiang Binjiang Electronic delivers lot-to-lot RF consistency backed by ISO 9001 manufacturing and in-house anechoic chamber validation. Our 99% positive buyer feedback and 24/7 engineering support ensure your U.FL waterproof antenna project moves from prototype to mass production without delay.
●Frequency: 902-928 MHz / 868 MHz / 433 MHz / Custom ISM band tuning
●Gain: 2 / 3 / 5 dBi selectable per order
●Cable: 1.13mm / 0.81mm micro-coax; length 50 mm to 300 mm
●Connector: U.FL (MHF1) / MHF4 / MMCX / MCX / SMA pigtail
●Mounting: Adhesive / Screw / Internal PCB standoff / Magnetic
●Radome: ABS / Polycarbonate; custom Pantone color or transparent
●Sealing: IP65 / IP67 / IP68 potting options
●Branding: OEM logo / Neutral / Private label packaging
●Certification Support: CE / FCC / RoHS / REACH test reports
●MOQ: 1 pc (stock) / 500 pcs (OEM)
●Rapid Prototyping: Samples within 5–7 working days
Q1: What is a U.FL patch antenna and how does it differ from a ceramic chip antenna?
A U.FL patch antenna uses a microstrip radiating element etched on FR4 substrate with an integrated ground plane, offering higher gain (3 dBi) and broader bandwidth than ceramic chip antennas. This 902-928MHz waterproof version is ideal for outdoor IoT sensors requiring stable broadside radiation and IP67 protection, whereas ceramic antennas suit ultra-miniature wearables with lower gain and indoor-only requirements.
Q2: Can this 902-928MHz antenna be retuned to 868 MHz or other ISM bands for global SKU consolidation?
Yes, our RF engineering team can adjust the PCB patch dimensions and feed network to target 868 MHz, 433 MHz, or any custom ISM frequency between 400 MHz and 1 GHz. OEM orders starting at 500 pcs include HFSS simulation, prototype fabrication, and anechoic chamber validation to ensure VSWR ≤ 1.5 at your new target frequency. This enables a single mechanical form factor across regional variants.
Q3: Is the IP67 rating sufficient for direct outdoor exposure without additional enclosure protection?
Absolutely. The fully potted ABS radome is sealed to IP67, protecting against temporary water immersion (1m/30min), dust ingress, and UV degradation. The antenna has been validated in accelerated weathering tests simulating 5+ years of outdoor exposure. For extreme marine or chemical environments, we offer IP68 epoxy potting as a custom upgrade.
Q4: What cable loss should I expect from 1.13mm micro-coax at 915 MHz?
Standard 1.13mm micro-coax exhibits approximately 2.5 dB/m at 915 MHz. At the default 100 mm length, insertion loss is only ~0.25 dB, which is negligible for most IoT link budgets. For longer internal routing (>200 mm), we recommend upgrading to low-loss 0.81mm micro-coax or relocating the U.FL pad closer to the RF module to minimize signal attenuation.
Q5: How does the 3 dBi gain and 120° beamwidth affect LoRaWAN coverage in urban deployments?
The 3 dBi gain with ~120° hemispherical coverage provides optimal balance for dense urban node clusters where devices may be located at varying elevations and azimuths relative to the gateway. Higher-gain antennas (5+ dBi) would create coverage nulls at steep angles, potentially missing nearby nodes. This 3 dBi specification aligns with FCC Part 15 EIRP limits for unlicensed 902-928 MHz operation.
Q6: Can I customize the U.FL cable length and orientation for my specific PCB layout?
Yes, cable length customization from 50 mm to 300 mm is standard, with 10 mm increments available. We also offer 90° and 180° U.FL connector orientations, reverse-polarity variants, and strain-relief boot options to match your enclosure geometry and prevent cable fatigue during assembly. MOQ for custom cable configurations is 500 pcs with no NRE charge.
Q7: Does this antenna comply with FCC Part 15 for unlicensed 902-928 MHz operation in North America?
Yes, the antenna’s 3 dBi gain and VSWR ≤ 1.5 ensure compliance with FCC Part 15.247 EIRP limits when paired with typical LoRaWAN transceivers (≤30 dBm conducted power). We provide FCC pre-compliance test reports and can assist with intentional radiator certification if needed. All units are also RoHS and REACH compliant for concurrent EU market access.
Ready to integrate this U.FL waterproof 902-928MHz antenna into your LoRaWAN sensor, smart meter, or industrial IoT device? Our RF engineers are standing by to assist with frequency retuning, cable-length optimization, IP sealing upgrades, and rapid prototyping. Full technical datasheet and compliance documentation provided upon request.
📧 Email: minna_liao@bjdz.top
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Zhenjiang Binjiang Electronic Co., Ltd. – Global Leader in RF Solutions
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