AH-600D
High Gain Circular Polarized Helical Antenna
| Model | Product Description | Frequency | Gain | Download | Enquiry | |
|---|---|---|---|---|---|---|
| AH-600D | High Gain Circular Polarized Helical Antenna | 500-700MHz | 14.5 dBic |  |  |  |
The AH-600D is a professional-grade Circular Polarized LHCP/RHCP Dual Stacked Helical Antenna system designed for the 500–700 MHz spectrum. Delivering an intensified 14.5 dBic gain, this dual-array configuration is engineered for high-capacity UHF tactical links and satellite ground stations. By stacking two high-efficiency helical apertures, the AH-600D provides superior signal penetration and multipath rejection in a form factor significantly more compact and durable than conventional cross-element Yagi arrays.
Battlefield Durability: Built to survive the most punishing environmental extremes
The AH-600D is housed in dual high-strength fiberglass radomes that shield the copper radiating elements from physical impact, ice loading, and corrosive atmospheres. The system is supplied with a ruggedized stacking pipe and marine-grade stainless steel mounting hardware, ensuring structural integrity in winds up to 190 Km/Hr and operational reliability in temperatures ranging from -30°C to +70°C.
Operational Efficiency: Maximum power projection and signal integrity
Efficiency is optimized through a precision-matched power splitter/combiner and phasing harness cables, ensuring coherent signal addition between the two helical apertures. The system achieves a stable 1:2.0 VSWR across the 200 MHz bandwidth, focusing 250 Watts of RF power into a controlled beam to maximize standoff distance while maintaining an impressive 17 dB Front-to-Back ratio.
Technical Features
- Intensified Gain Profile: Provides a typical gain of 14.5 dBic, significantly enhancing link margin for long-distance UHF applications.
- Configurable Beamwidth: When stacked vertically, it delivers a 60° horizontal and 30° vertical beamwidth; horizontal stacking options are available to further customize coverage patterns.
- Circular Polarization (CP): Available in LHCP or RHCP to virtually eliminate Faraday rotation and mitigate multipath fading in urban or cluttered terrain.
- Turnkey Integration: Supplied as a complete kit including power splitters, phasing harnesses, and stacking hardware for rapid tower/mast installation.
- Low Wind Loading: The aerodynamic cylindrical design of each radome minimizes drag and prevents the accumulation of ice in arctic or high-altitude theaters.
- Compact SWaP: Despite its dual-array power, the system remains smaller and more robust than traditional linear UHF arrays of equivalent performance.
Strategic EW, SIGINT & Monitoring Compatibility
- Electronic Warfare (EW): Acts as a high-intensity, high-gain directional jammer for UHF data links, utilizing its 14.5 dBic gain and circular polarization to bypass anti-jam filters.
- Signals Intelligence (SIGINT): The dual-array architecture provides a clean noise floor and high gain, essential for the interception of weak LEO satellite telemetry or tactical UHF emitters.
- Persistent Monitoring: The wide 60° horizontal beamwidth (vertical stack) provides excellent sectoral coverage for theater-wide situational awareness.
Global & Environmental Compliances
- MIL-STD Hardening: Designed to meet rigorous military protocols for Temperature, Humidity, Shock, and Vibration (MIL-STD-810G).
- RoHS & REACH: Constructed with lead-free, eco-friendly components compliant with all EU chemical safety and hazardous substance registrations.
- WEEE Directive: Supports sustainable lifecycle management with high-end recyclable aluminum and copper components.
- CE Mark: Certified to meet all European Union safety, health, and environmental protection requirements.
Key Advantages
- Multipath Immunity: Inherently rejects reflected signals, providing a stable link in metallic or subterranean industrial networks.
- Increased Link Margin: The 14.5 dBic gain provides a significant advantage for low-power or long-range tactical transmitters.
- Factory-Matched Harnessing: All phasing and splitting components are factory-tuned for immediate "plug-and-play" deployment.
- Directional Purity: High Front-to-Back isolation reduces interference with friendly systems located behind the mast.
Key Applications
- Satellite Ground Stations: High-gain Ground-to-Space links for LEO satellite constellations and telemetry tracking.
- High-Power UHF Jamming: Directional Electronic Attack (EA) against 500-700 MHz tactical radio networks.
- UAV Command & Control: Reliable long-range directional links for tactical aerial assets.
- Point-to-Point Tactical Bridges: Establishing secure, high-capacity data links across hostile or uneven terrain.
Design Features: The AH-600D dual stacked helical antenna uses extended stubs to provide the greater gain while maintaining the wider beam-width. This high-gain low-profile antennas use Circular Polarization Antenna Technology - which delivers better penetration through obstruction and interference. This industrial grade antenna provides superior performance as compare to significantly larger and more complex products. Our AH series helical antennas are smaller than conventional cross elements yagi antenna. The AH-600D Helical Antenna is supplied with a specially designed mounting arrangement for steering the antenna in both planes, over 360 Degrees in Azimuth and 90 Degrees in Elevation for terrestrial and satellite links.
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