H5818-NF Helical Antenna
The H5818-NF Helical Antenna is designed for wideband performance across the 4400–6000 MHz frequency range. This antenna provides extended range, enhanced signal strength, and superior interference mitigation, making it ideal for counter-UAS (C-UAS) operations, military and defense communications, underground mining, and industrial automation applications.
Description
The H5818-NF Helical Antenna is designed for wideband performance across the 4400–6000 MHz frequency range. This antenna provides extended range, enhanced signal strength, and superior interference mitigation, making it ideal for counter-UAS (C-UAS) operations, military and defense communications, underground mining, and industrial automation applications.
Its circular polarization improves signal reliability by minimizing multipath interference caused by metallic surfaces, tunnels, and other reflective environments. This ensures consistent, high-efficiency transmission even in complex RF conditions. The H5818-NF is optimized for wireless security, Industrial Internet of Things (IIoT), machine-to-machine (M2M) communication, and long-range surveillance, supporting secure and stable connectivity in mission-critical applications.
Built for rugged durability, this antenna can withstand harsh environmental conditions, making it a reliable choice for defense, industrial, and high-performance wireless networks that require uninterrupted communication.
| General Specifications | |
|---|---|
| Model Name | H5818-NF |
| Part Number | 99280501 |
| Antenna Type | Helical Antenna |
| Radiation Pattern | Directional |
| Enclosure | Polycarbonate Radome |
| Colour | Black, Matte finish (RAL 9005) |
| Compliances | RoHS, REACH |
| Markets | Tactical C-UAS systems, Industrial & Mining IoT |
| Electrical Specifications | |
| Frequency (MHz) | 4400-6000 |
| Frequency Band | ISM |
| Gain - (dBic) | 18.0 @ 5400 MHz |
| Polarization | RHCP |
| VSWR (Max) | 2:1 |
| Impedance (Ω) | 50 |
| Max Input Power (W) | 25 |
| Front/Back Ratio - Min. (dB) | 20 |
| HPBW (°) | 28 @ 4400 MHz, 18 @ 6000 MHz |
| Mechanical Specifications | |
| Length - in (mm) | 18.1 (458) |
| Weight - lbs (kg) | 0.55 (0.25) |
| Radome Diameter - in (mm) | 1.5 (38) |
| Ground Plane Diameter - in (mm) | 2 (51) |
| Connector Type | N-Type (Female) |
| Number of Connectors | 1 |
| Environmental & Structural Specifications | |
| Operating Temperature - °F (°C) | -40 to 158 (-40 to 70) |
| Mounting Specifications | |
| Mount Type | Panel (3 x 8-32 Studs) |
Model Variants
- H5812-NF Helical Antenna – Gain: 12.0 @ 5600 MHz, Connector: N-Type (Female)
- H5815-NF Helical Antenna – Gain: 15.0 @ 5800 MHz, Connector: N-Type (Female)
- H5812-SMAF Helical Antenna – Gain: 12.0 @ 5600 MHz, Connector: SMAF (Female)
