Multi-Beam Receive-Only Antenna

Model 700-70TCK Torus Multiple Band Antenna

The General Dynamics SATCOM Technologies Torus antenna consists of contoured, rigid aluminum panels which are parabolic in one plane and circular in the plane of satellite equatorial orbit. It is supported by a stiff steel backstructure, which is unique to each installation. The Torus antenna provides consistent high-quality RF performance across 70° of the orbital arc while utilizing a single reflecting surface.

  • 70° orbital arc field of view
  • Reception from up to 35 satellites
  • Meets FCC 2° spacing requirements
  • Aluminum surface

Features

Individual feeds can be placed on a feed tray to view satellites with 2° of separation. The offset design provides a gain equivalent to that of a 7-meter parabolic antenna, while providing significantly lower sidelobes. This reduces the interference from terrestrial sources or adjacent satellites.

Options

  • Simultaneous C and Ku-band linear polarized 4-port
  • Ku-band linear polarized 2-port
  • C-band linear polarized 2-port
  • Ku-band circular polarized 2-port
  • C-band circular polarized 2-port
  • De-ice system

Specifications

2-Port Linear
4-Port Linear (2-Port C-Band, 2-Port Ku-Band)
Electrical C-Band Ku-Band C-Band Ku-Band
Frequency Range (receive)
3.4 - 4.2 GHz
10.950 - 12.750 GHz 3.4 - 4.2 GHz 10.950 - 12.750 GHz
Gain at Midband (receive) 47.4 dBi 56.2 dBi 47.3 dBi 54.1 dBi
VSWR 1.30:1 1.30:1 1.50:1 1.50:1
Beamwidth at Midband (receive)
-3 dB
-15 dB

0.73°
1.53°

0.25°
0.53°

0.73°
1.53°

0.32°
0.67°
Radiation Patterns Meet Current FCC Specifications for 2° Satellite Spacing
Antenna Noise Temperature (reference OMT port)
Typical 10° Elevation

57 K
73 K
71 K
86 K
Cross Polarization on-axis 30 dB 30 dB 25 dB 25 dB
Isolation Between Ports (linear 30 dB minimum
30 dB minimum 25 dB minimum
30 dB minimum
RF Specification 975-3690 975-2291
975-3549

 

Mechanical
Reflector Size 79 ft (24.1 m) wide by 23 ft (7.0 m) high
Equivalent Diameter 23 ft (7.0 m)
Reflector Construction 36 panels
Beam Pointing Accuracy < 0.10°
Surface Accuracy < 0.020 inch RMS (as installed)
< 0.034 inch RMS (under worst-case wind conditions)
Net Weight 18,000 lbs. (8,200 kg)
Shipping Weight 40,000 lbs. (18,000 kg)
Shipping Volume Three 40 ft ISO containers and one 40 ft flatrack

 

Environmental
Wind Loading at 32° F (0° C)
Operational
Survival (no ice)
Survival [with 1 in (25 mm) ice]

60 mph (97 km/h) gusting to 80 mph (129 km/h)
125 mph (201 km/h)
87 mph (140 km/h)
Pointing Accuracy 0.028° RMS [with winds 30 mph (48 km/h) gusting to 45 mph (72 km/h)]
0.056° RMS [with winds 45 mph (72 km/h) gusting to 60 mph (97 km/h)]
Temperature Range (operational or survival) -40° to +140° F (-40° to +60° C)
Atmospheric Conditions Salt, pollutants and corrosive contaminants as found in coastal and industrial areas
  • Features

    Features

    Individual feeds can be placed on a feed tray to view satellites with 2° of separation. The offset design provides a gain equivalent to that of a 7-meter parabolic antenna, while providing significantly lower sidelobes. This reduces the interference from terrestrial sources or adjacent satellites.

    Options

    • Simultaneous C and Ku-band linear polarized 4-port
    • Ku-band linear polarized 2-port
    • C-band linear polarized 2-port
    • Ku-band circular polarized 2-port
    • C-band circular polarized 2-port
    • De-ice system
  • Specifications

    Specifications

    2-Port Linear
    4-Port Linear (2-Port C-Band, 2-Port Ku-Band)
    Electrical C-Band Ku-Band C-Band Ku-Band
    Frequency Range (receive)
    3.4 - 4.2 GHz
    10.950 - 12.750 GHz 3.4 - 4.2 GHz 10.950 - 12.750 GHz
    Gain at Midband (receive) 47.4 dBi 56.2 dBi 47.3 dBi 54.1 dBi
    VSWR 1.30:1 1.30:1 1.50:1 1.50:1
    Beamwidth at Midband (receive)
    -3 dB
    -15 dB

    0.73°
    1.53°

    0.25°
    0.53°

    0.73°
    1.53°

    0.32°
    0.67°
    Radiation Patterns Meet Current FCC Specifications for 2° Satellite Spacing
    Antenna Noise Temperature (reference OMT port)
    Typical 10° Elevation

    57 K
    73 K
    71 K
    86 K
    Cross Polarization on-axis 30 dB 30 dB 25 dB 25 dB
    Isolation Between Ports (linear 30 dB minimum
    30 dB minimum 25 dB minimum
    30 dB minimum
    RF Specification 975-3690 975-2291
    975-3549

     

    Mechanical
    Reflector Size 79 ft (24.1 m) wide by 23 ft (7.0 m) high
    Equivalent Diameter 23 ft (7.0 m)
    Reflector Construction 36 panels
    Beam Pointing Accuracy < 0.10°
    Surface Accuracy < 0.020 inch RMS (as installed)
    < 0.034 inch RMS (under worst-case wind conditions)
    Net Weight 18,000 lbs. (8,200 kg)
    Shipping Weight 40,000 lbs. (18,000 kg)
    Shipping Volume Three 40 ft ISO containers and one 40 ft flatrack

     

    Environmental
    Wind Loading at 32° F (0° C)
    Operational
    Survival (no ice)
    Survival [with 1 in (25 mm) ice]

    60 mph (97 km/h) gusting to 80 mph (129 km/h)
    125 mph (201 km/h)
    87 mph (140 km/h)
    Pointing Accuracy 0.028° RMS [with winds 30 mph (48 km/h) gusting to 45 mph (72 km/h)]
    0.056° RMS [with winds 45 mph (72 km/h) gusting to 60 mph (97 km/h)]
    Temperature Range (operational or survival) -40° to +140° F (-40° to +60° C)
    Atmospheric Conditions Salt, pollutants and corrosive contaminants as found in coastal and industrial areas
  • Literature
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