The General Dynamics SATCOM Technologies lightweight 1.25-meter mobile antenna is a compact design for worldwide transmit and receive operation in Ku-band. This transportable antenna consists of a single-piece carbon fiber composite reflector mounted on a cable drive elevation-over-azimuth positioner. This results in a low-weight antenna with superior stiffness and high performance under wind loading conditions.

 

Product Details

Features

The state-of-the-art design provides exceptionally low sidelobe and cross-polarization performance, well within INTELSAT and EUTELSAT requirements. The complete antenna system can be interfaced with most lightweight vehicle structures for the purpose of mobile SNG applications.

  • Aluminum/Carbon fiber construction
    • Light weight
    • Precise surface
    • High stiffness
    • Robust design for vehicle mounting
  • High performance
    • Low sidelobes, high E.I.R.P. capability
    • Compliant under operational wind conditions
  • Stow/deployment
    • Low profile
    • Stow position on vehicle
    • Precision alignment
  • INTELSAT and EUTELSAT compliant

Options

  • GPS or jog controller
  • Boom-mounted electronics integration kits
  • Tx waveguide run

Specifications

Ku-Band 2-Port Linear Polarized Cross-pol Compensated
Ku-Band 2-Port Non-Compensated
Electrical Receive Transmit Receive Transmit
Frequency (GHz)
10.700 - 12.750
13.750 - 14.500 10.700 - 12.750 13.750 - 14.500
Antenna Gain, Midband dBi 41.70 43.40 42.00 43.40
Antenna Noise Temperature
5° Elevation
10° Elevation
20° Elevation
40° Elevation
72 K
58 K
51 K
50 K
  71 K
56 K
49 K
48 K

Pattern Beamwidth (in degrees at midband)
-3 dB, at midband
-15 dB, at midband
1.38
2.90
1.14
2.39
1.33
2.79
1.14
2.39
Sidelobe Performance Meets Eutelsat, FCC 25.209 or ITU-RS-580
Meets FCC 25.209 or ITU-RS-580
Cross Polarization Isolation
On Axis
Within 1.0 dB beamwidth
35 dB
27 dB
35 dB
35 dB
30 dB
30 dB
27 dB
27 dB
VSWR 1.35:1 (16.5 dB) 1.30:1 (17.7 dB) 1.30:1 (17.7 dB) 1.30:1 (17.7 dB)
Port to Port Isolation
- Rx/Tx (Rx frequency)
- Tx/Rx (Tx frequency)

0 dB
-85 dB

-30 dB
0 dB

0 dB
-85 dB

-30 dB
0 dB
Total Power Handling
1.00 kW CW
1.00 kW CW
RF Specification
975-4457
975-4449

 

Mechanical
Antenna Diameter 1.25 meters (4.1 ft)
Antenna Type Single offset
Reflector Construction Carbon fiber with white paint on surface
Mount Type Elevation over azimuth
Antenna Travel
Elevation 5° - 90° of reflector boresight
Azimuth ±200° continuous
Stow Height 16.5 in (42 cm)
Antenna Weight 140 lbs. (63.5 kg)
Integration Capability 80 lbs. (36 kg) on feed boom, axis crossover for rack mounting

 

Environmental
Wind Performance (depending on vehicle capabilities) - Pointing Loss of 0.8 dB 30 mph (48 km/h) gusting to 50 mph (80 km/h)
Wind Performance - Drive 50 mph (80 km/h) gusting to 65 mph (105 km/h)
Wind Performance - Survival 80 mph (128 km/h) any position
  112 mph (180 km/h) at stow
Operational Temperature -5° to +130° F (-20° to +55° C)
Survival Temperature -40° to +140° F (-40° to +60° C)
Rain Up to 4 in/h (10 cm/h)
Relative Humidity (operational and survival) 0% to 100% with condensation
Solar Radiation 360 BTU/h/ft2 (1000 Kcal/h/m2)
Shock and vibration tolerant to conditions encountered during shipment by airplane, ship or truck. Atmospheric tolerant to conditions encountered in coastal regions and/
or heavily industrialized areas.