AH-6090-12 Helical Antenna | 6-9 GHz 12 dBic High Gain Circular Polarized
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AH-6090-12

High Gain Circular Polarized Helical Antenna

ModelProduct DescriptionFrequencyGainDownloadPDFEnquiry
AH-6090-12High Gain Circular Polarized Helical Antenna6000-9000MHz12 dBicDownload DatasheetDownload ManualPost Enquiry

The AH-6090-12 is a professional-grade High Gain Circular Polarized Helical Antenna designed for the 6000–9000 MHz (6–9 GHz) frequency band. Engineered to deliver a robust 12 dBic gain, this directional aperture is optimized for high-intensity microwave links, satellite telemetry, and persistent communications in environments prone to interference. By utilizing advanced helical winding and circular polarization (RHCP/LHCP), the AH-6090-12 provides superior signal penetration and multipath rejection, outperforming traditional linear antennas in complex tactical and industrial theaters.

Battlefield Durability: Built to survive the most punishing environmental extremes

The AH-6090-12 is encased in a high-strength fiberglass radome that protects the precision copper radiating elements from physical impact, ice loading, and corrosive atmospheres. Utilizing a 6061T6 aluminum alloy reflector and marine-grade stainless steel mounting hardware, this antenna maintains structural integrity in winds up to 200 Km/Hr and is fully resistant to salt fog and tropical fungus as per MIL-STD-810G protocols.

Operational Efficiency: Maximum power projection and signal integrity 

By securing the high-purity enameled copper winding directly to the radome wall, the AH-6090-12 minimizes internal RF inter-modulation and ensures precise phase alignment. Its focused 45-degree beamwidth and exceptional 20 dB Front-to-Back ratio concentrate RF energy exactly where it is needed, maximizing link distance and signal-to-noise ratio while preventing interference with friendly systems located behind the aperture.

Technical Features

  • High Gain Performance: Delivers a typical gain of 12 dBic for mid-range microwave links.
  • Multi-Octave Coverage: Operates across the full 6–9 GHz spectrum without the need for field tuning.
  • Circular Polarization: Available in RHCP or LHCP to eliminate Faraday rotation and mitigate multipath fading.
  • Tactical Steering: Supplied with a mounting arrangement for 360° Azimuth and 90° Elevation tracking for terrestrial and satellite links.
  • Compact SWaP: Only 150 mm in length and 500 grams (flange mount), optimizing size and weight for mobile masts and UAV ground stations.

Strategic EW, SIGINT & Monitoring Compatibility

  • Electronic Warfare (EW): Acts as a high-intensity polarization-matched jammer for C/X-band data links, utilizing circular polarization to bypass linear anti-jam filters.
  • Signals Intelligence (SIGINT): The clean noise floor and 12 dBic gain allow for the interception of long-range telemetry and weak tactical microwave signals.
  • Persistent Monitoring: Provides high angular resolution for precise emitter characterization and theater dominance in the microwave window.

Global & Environmental Compliances

  • MIL-STD Hardening: Fully compliant with MIL-STD-810G standards for High/Low Temperature, Humidity, Shock, Vibration, Rain, and Salt Fog.
  • RoHS & REACH: Manufactured using eco-friendly materials, free from restricted hazardous substances and compliant with EU chemical safety registrations.
  • WEEE Directive: Supports high-end lifecycle management with recyclable aluminum and copper components.
  • CE Certified: Meets all European Union safety, health, and environmental protection requirements.

Key Advantages

  • Multipath Immunity: Inherently rejects reflected signals, providing a clean link in tunnels and urban canyons.
  • Superior Form Factor: Smaller and more rugged than conventional X-band Yagi or parabolic dish antennas.
  • High Power Capacity: Handles up to 50 Watts of continuous-duty RF transmission for persistent protection.
  • Zero Field Tuning: Factory-tuned for immediate "plug-and-play" deployment.

Key Applications

  • UAV Ground Control: High-reliability directional command and control links for tactical drones.
  • Satellite Telemetry: High-gain Ground-to-Space links for C-band and X-band satellite constellations.
  • Tunnel Communications: Providing uninterrupted wireless links in high-reflection subterranean military and industrial networks.
  • Microwave Backhaul: Establishing secure, long-range point-to-point data bridges across hostile terrain.

 

Design Features: The AH-6090-12 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. The AH-6090-12 helical antenna is highly suitable to provide the uninterrupted communications in the tunnels. 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-6090-12 Helical Antenna is supplied with a specially designed mounting arrangement to hold the antenna at back end by using stainless steel mounting brackets to withstand the higher wind rating. The AH-6090-12 helical antenna is supplied with a specially designed mounting arrangement for steering the antenna in both planes, 360 degrees in Azimuth and 90 degrees in Elevation for terrestrial and satellite link. Both LHCP and RHCP models are available. The part number for LHCP version is AH-6090-12-LHCP and AH-6090-12-RHCP is for RHCP version.
Constructions: The AH-6090-12, like all our AH series helical antennas, utilizes right hand circular polarization to minimize the effects of multipath interference. The AH-6090-12 Helical Antenna is heavy duty, broadband and rugged helical antennas, supplied with fiberglass radome to protect the antenna from environment. The radiating element of high power helical antenna is made of high quality high strength enameled coated copper wire and winding is secure alongside wall of fiber glass enclosure/hosing/radome to keep the helical winding/radiating element to its appropriate location to prevent RF inter-modulation.

Electrical Specifications:
Frequency Range6000 - 9000 MHz
Gain12 dBic
Bandwidth6 - 9 GHz
Antenna TypeHelix
PolarizationCircular - RHCP or LHCP
Input Impedance50 Ohms
Radiation PatternDirectional
Horizontal Beamwidth -Half Power Points45+/-5 Degrees Typical
Front to Back Ratio22+/-2 dB. Typical
VSWR - Equal To or Better ThenBetter Than 2:1
RF Power Handling Capacity50 Watts


 

Mechanical Specifications:
Antenna MaterialsFiber Glass, Copper, Aluminum
Mounting Hardware -MaterialsMarine Grade Stainless Steel
Wind Rating200 Km/Hr.
Overall Length150 mm
Shipping Length200 mm
Radiating MaterialHigh Quality Copper
Maximum Mount Pipe Diameter52 mm (2 Inches)
Radome MaterialHigh Strength ABS
Radome Outer Diameter45 mm
Gross Weight500 Grams


 

Environmental Specifications:
Operating Temperature(-) 30 to +70 Degrees Celsius
Storage Temperature(-) 40 to +80 Degrees Celsius
Humidity0 to 95% RH