915 MHz λ/4 Whip Antenna

Standard

This antenna operates in the 902–928 MHz ISM band (FCC Part 15) for LPWA and IoT applications, including LoRa and other sub-GHz wireless systems.

The quarter-wavelength (λ/4) monopole design leverages your device’s ground plane as a counterpoise, enabling a compact form factor while maintaining stable radiation performance.

The housing uses weather-resistant ASA resin and achieves IP67 ingress protection. The material meets UL 94 V-0 equivalent flame-retardant performance.

100% waterproof inspection and secure fastening using a torque wrench ensure consistent sealing performance and high mechanical reliability, making this antenna suitable for demanding outdoor and industrial IoT deployments.

915 MHz λ/4 Whip Antenna - Exterior View

915 MHz λ/4 Whip Antenna - Mounting Detail

Features

Applications

Specifications & Compliance

Product Catalog

Features

1. Stable Radiation Performance

This compact antenna achieves VSWR ≤ 1.5 and radiation efficiency ≥ –2 dB in the 902–928 MHz ISM band (FCC Part 15) when used with an appropriate ground plane.

2. Pre-Certified with Multiple Wireless Modules

This antenna is pre-certified with major LPWA communication modules, including LoRa and Sigfox.

For current certification status, contact the module manufacturer or authorized distributor.

3. Ingress Protection (Dust & Water Resistant)

Each unit undergoes 100% water resistance testing prior to shipment to verify IPX7 performance. The antenna uses a proprietary connector designed for torque wrench tightening, ensuring secure installation. It is ideal for industrial equipment requiring high reliability.

4. UL 94 V-0 Flame Retardant Rated

The ASA resin housing provides high weather resistance and meets the UL 94 V-0 flame retardant rating. It supports safe and reliable operation in outdoor and industrial environments.

Applications

Its stable RF performance and high reliability drive adoption across a wide range of applications.

Smart Factories, Agriculture IoT, Smart Meters, Bridge Monitoring, Tilt Sensors, Water Level Monitoring, Insulation Monitoring Systems, Parcel Lockers, Gateways, Solar Power Systems, Industrial Equipment, Construction Equipment Management Terminals, Vessel Monitoring, Wildlife Control (Trap Systems), Food Temperature Monitoring, Industrial Drones, and more

Specifications

Operating Frequency	916–928 MHz
Antenna Type	λ/4 Monopole Antenna (Ground Plane Required)
Gain	≤ 3 dBi
Radiation Pattern	Omnidirectional
Input Impedance	50 Ω nominal
Connector	SMA Plug, Straight / Right Angle, Standard / Reverse Polarity
Cable Length	N/A
Dimensions	100 (L) × Ø9 mm (Max. Ø12 mm) (104 mm length with right-angle connector)
Operating Temperature	–30 °C to +70 °C
Included Accessories	N/A
RoHS 2 compliant (free of restricted substances)	Compliant
Ingress Protection	IP67 (Waterproof inspection conducted prior to shipment)
Notes	This product is a standard model and specifications may change or production may be discontinued without notice. This product is not intended for use in safety-critical applications, including but not limited to: aerospace systems, transportation control systems, power generation control equipment, and life-sustaining medical devices. For ordering information, please contact your local distributor. Samples are also available for purchase through NAD.com and Marutsu Online.

Product Lineup

Part Number	Color	Certification ID	Connector Type	Connector Orientation	Dimensions	Notes
1019-053A	Ivory ■	T16-068-1021	Standard	SMA Plug, Right Angle	104 (L) mm Ø 9 mm (Max. 12 mm)	In Production
1019-102A	Black ■	T16-068-1021		SMA Plug, Right Angle	104 (L) mm Ø 9 mm (Max. 12 mm)	Contact Us
1019-054A	Ivory ■	T16-068-1037		SMA Plug, Straight	100 (L) mm Ø 9 mm (Max. 12 mm)	In Production
1019-101A	Black ■	T16-068-1037		SMA Plug, Straight	100 (L) mm Ø 9 mm (Max. 12 mm)	Contact Us