4.6 Meter Prime Focus Antenna

The General Dynamics SATCOM Technologies 4.6-meter antenna delivers exceptional performance for receive-only applications for C through Ku-band frequencies. The antenna offers a prime focus reflector that incorporates precision-formed panels, contoured radials and hub assembly. The reflector is supported by a galvanized pedestal that provides the required stiffness for pointing and tracking accuracy. The pedestal is designed for full orbital arc coverage and can be readily adaptable to ground or rooftop installations. A low cost motorization and control system feature is also available.

  • Bolt-together
  • 3.4 to 12.75 GHz operation
  • Durable FRP Reflector
  • 125 mph (200 km/h) wind survival
  • Fully Motorized

Options

  • C, X, Ku and C/Ku band feed configurations
  • C/Ku receive-only feed systems
  • Specialized feed systems (e.g. extended, multi-band)
  • Improved feed cross-pol performance
  • Fixed or motorizable pedestal mounts
  • Antenna control system with tracking
  • Integrated LNA or LNB systems
  • Load frame or non-penetrating mounts
  • Packing for sea and air transport
  • Turnkey installation and testing

Upgrades

  • Extended azimuth travel
  • Low operating temperatures

Specifications

Electrical C-Band Linear C-Band Circular Ku-Band Linear
Antenna Size 4.6M (15.2ft) 4.6 M (15.2 ft)
4.6 M (15.2 ft)
Operating Frequency (GHz) 3.625 - 4.2 GHz 3.625 - 4.2 GHz
10.95 - 12.75 GHz
Midband Gain ( +/- .5dB) i 42.9 dB 42.6 dBi
51.9 dBi
3dB Beamwidth 1.2° 1.2°
0.41°
Feed Interface 1.2° CPR 229
WR 75
Cross-Pol Isolation >30 dB Min. (on axis) >17 dB Min. (on axis) >30 dB Min. (on axis)
First Sidelobe (typical) - 20 dB - 20 dB
- 20 dB
VSWR
1.3:1 Max.
1.5:1 Max.
1.3:1 Max.

 

Mechanical
Reflector Material Glass Fiber Reinforced Polyester SMC
Antenna Optics 8 Piece Axisymmetric, Prime Focus
Mount Configuration EL over AZ pedestal
Elevation Adjustment Range 5° to 90° Continuous Motorized
Azimuth Adjustment Range 120° Continuous Motorized
Shipping Containers One 20ft standard (2 units in One 40 ft)

 

Environmental Performance
Wind Loading Operational
Survival
45 mph gusting to 60mph (72 km/h gusting to 97 km/h)
125 mph (201 km/h)
Temperature Operational
-5° to 122° F (-20° C to +50° C)
Relative Humidity O to 100% (Condensing)
Rain Operational
1/2’ / Hr.
Atmospheric Conditions Salt, Pollutants and Contaminants as Encountered in Coastal and Industrial Areas
Solar Radiation 360 BTU/h/ft2
  • Features

    Options

    • C, X, Ku and C/Ku band feed configurations
    • C/Ku receive-only feed systems
    • Specialized feed systems (e.g. extended, multi-band)
    • Improved feed cross-pol performance
    • Fixed or motorizable pedestal mounts
    • Antenna control system with tracking
    • Integrated LNA or LNB systems
    • Load frame or non-penetrating mounts
    • Packing for sea and air transport
    • Turnkey installation and testing

    Upgrades

    • Extended azimuth travel
    • Low operating temperatures
  • Specifications

    Specifications

    Electrical C-Band Linear C-Band Circular Ku-Band Linear
    Antenna Size 4.6M (15.2ft) 4.6 M (15.2 ft)
    4.6 M (15.2 ft)
    Operating Frequency (GHz) 3.625 - 4.2 GHz 3.625 - 4.2 GHz
    10.95 - 12.75 GHz
    Midband Gain ( +/- .5dB) i 42.9 dB 42.6 dBi
    51.9 dBi
    3dB Beamwidth 1.2° 1.2°
    0.41°
    Feed Interface 1.2° CPR 229
    WR 75
    Cross-Pol Isolation >30 dB Min. (on axis) >17 dB Min. (on axis) >30 dB Min. (on axis)
    First Sidelobe (typical) - 20 dB - 20 dB
    - 20 dB
    VSWR
    1.3:1 Max.
    1.5:1 Max.
    1.3:1 Max.

     

    Mechanical
    Reflector Material Glass Fiber Reinforced Polyester SMC
    Antenna Optics 8 Piece Axisymmetric, Prime Focus
    Mount Configuration EL over AZ pedestal
    Elevation Adjustment Range 5° to 90° Continuous Motorized
    Azimuth Adjustment Range 120° Continuous Motorized
    Shipping Containers One 20ft standard (2 units in One 40 ft)

     

    Environmental Performance
    Wind Loading Operational
    Survival
    45 mph gusting to 60mph (72 km/h gusting to 97 km/h)
    125 mph (201 km/h)
    Temperature Operational
    -5° to 122° F (-20° C to +50° C)
    Relative Humidity O to 100% (Condensing)
    Rain Operational
    1/2’ / Hr.
    Atmospheric Conditions Salt, Pollutants and Contaminants as Encountered in Coastal and Industrial Areas
    Solar Radiation 360 BTU/h/ft2
  • Literature

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