AH-1117-9
All GPS Band Circular Polarized Helical Antenna
| Model | Product Description | Frequency | Gain | Download | Enquiry | |
|---|---|---|---|---|---|---|
| AH-1117-9 | All GPS Band Circular Polarized Helical Antenna | 1100-1700MHz | 9 dBic |  |  |  |
Overview: AH-1117-9 High-Gain All-GPS Band Helical Antenna
The AH-1117-9 is a military-grade, wideband Circular Polarized Helical Antenna precision-engineered to cover the entire 1100–1700 MHz spectrum. Delivering a stable 9 dBic gain, this directional antenna is a specialized solution for global navigation satellite systems, covering GPS L1, L2, L5, and L6 bands, alongside GLONASS and Galileo frequencies. By utilizing advanced helical winding and Circular Polarization technology, the AH-1117-9 provides superior signal penetration and multipath rejection, outperforming significantly larger linear antennas in complex subterranean and high-interference environments.
Battlefield Durability: Built to survive the most punishing environmental extremes
The AH-1117-9 is encased in a high-tech ruggedized radome made of high-strength ABS and fiberglass, shielding the precision copper radiating elements from physical impact and corrosive atmospheres. Featuring a 6061T6 aluminum alloy reflector and marine-grade stainless steel hardware, this antenna is fully compliant with MIL-STD-810G protocols. It is designed to survive the worst environmental conditions, maintaining structural integrity in winds up to 200 Km/Hr and extreme thermal cycles.
Operational Efficiency: Maximum power projection and signal integrity
Efficiency is maximized by securing high-purity enameled copper winding directly to the radome wall, which prevents geometry shifts and eliminates internal RF inter-modulation. Its optimized 60-degree horizontal beamwidth and 16 dBi Front-to-Back ratio ensure that RF energy is concentrated exactly where it is needed—maximizing link distance for GPS tracking and satellite communication while providing high isolation from rearward interference and background ground noise.
Detailed Technical Features
- All-GPS Band Mastery: Precision-engineered to cover the 1100–1700 MHz window, supporting GPS L1, L2, L5, L6, Galileo, and GLONASS.
- High-Gain Directional Output: Provides a consistent 9 dBic gain in an ultra-compact 300 mm radome profile.
- Circular Polarization (CP) Superiority: Available in RHCP or LHCP to virtually eliminate Faraday rotation and mitigate signal fading.
- High Power Capacity: Industrial-grade construction facilitates sustained 150 Watts of continuous-duty RF transmission.
- Precision Steering Suite: Supplied with a specialized mounting arrangement for 360° Azimuth and 90° Elevation tracking.
- Advanced Inter-Modulation Protection: High-strength copper elements are secured to the radome wall to maintain precise electrical geometry under vibration.
- Tactical SWaP Profile: Lightweight at 2.5 Kg, offering an elite gain-to-weight ratio for quick-deploy tactical masts.
- Wide Sector Acquisition: Features a 60-degree HPBW, facilitating easier satellite acquisition and tracking for mobile assets.
EW, SIGINT & Monitoring Compatibility
- Electronic Warfare (EW): Acts as a high-intensity directional jammer for the entire GPS/GNSS spectrum. Its circular polarization ensures the jamming signal bypasses linear anti-jam filters used in tactical receivers.
- Signals Intelligence (SIGINT): The clean noise floor and directional gain allow operators to intercept weak, long-range GPS telemetry and rogue tactical emitters with high fidelity.
- Persistent Monitoring: Serves as a high-fidelity electronic "tripwire" for situational awareness in high-reflection environments like military tunnels or maritime corridors.
Global & Environmental Compliances
- MIL-STD-810G Certified: Rigorously tested for High/Low Temperature, Humidity, Shock (Procedure IV), Vibration (Procedure I), Rain, Fungus, and Salt Fog.
- Ingress Protection: Radome is designed to withstand powerful water jets and dust ingress in coastal or tropical climates.
- EU Compliance: Manufactured in strict adherence to RoHS (lead-free), REACH (chemical safety), and WEEE (recycling) directives.
Key Advantages:
- Multipath Immunity: Inherently rejects reflected signals, providing a stable link in metallic or subterranean environments.
- Radome Feature Advantage: The high-strength ABS radome offers near-zero signal attenuation and prevents ice accumulation from detuning the antenna.
- Universal GNSS Support: A single antenna solution for all GPS bands, simplifying logistics and reducing the need for multiple antenna systems.
Key Applications:
- GNSS Ground Stations: High-reliability directional reception for precision navigation and timing.
- Tunnel Communications: Providing uninterrupted wireless links in subterranean military and industrial networks.
- UAV Ground Control: Directional command and control for L-band tactical drones.
- Satellite Telemetry: High-gain Ground-to-Space links for L-band satellite constellations.
Design Features: The AH-1117-9 uses extended stubs to provide the greater gain while maintaining the wider beam-width. This low-profile antennas use Circular Polarization Antenna Technology - which delivers better penetration through obstruction and interference. This commercial grade antenna provides superior performance as compare to significantly larger and more expensive products. Our AH series helical antennas are smaller than conventional yagi antenna. The AH-1117-9 Helical Antenna is supplied with a specially designed mounting arrangement for steering the antenna over 360 Degrees in Azimuth direction and 90 degrees in elevation.
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