The General Dynamics SATCOM Technologies lightweight 1.8-meter mobile antenna is designed for quad-band transmit and receive operation worldwide. 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

  • Finishes: Standard Ford Polar White, Option Green Fed Std 595 34094 or Desert Sand Fed Std 595 3330 - please specify at order
  • Boom-mounted or saddlebags electronics integration kits
  • Transmit waveguide run(s)

Specifications

C-Band 2-Port
Linear/Circular
Polarized
C-Band 2-Port
Linear Polarized
X-Band 2-Port
Circular Polarized 
Ku-Band 2-Port
Linear Polarized
(X-Pol Compensated) 
Ka-Band 4-Port
Circular Polarized
Electrical Receive Transmit Receive Transmit Receive
Transmit Receive
Transmit
Receive
Transmit
Frequency (GHz)
3.625-
4.200
5.850-
6.425
3.400-
4.200
5.725-
6.725
7.250-
7.750
7.900-
8.400
10.700-
12.750
13.750-
14.500
20.200-
21.200
30.000-
31.000
Antenna Gain, Midband dBi 35.20 39.00 35.50 39.10 41.00 41.70 44.80  46.50  49.70  52.50 
Antenna Noise Temperature
5° Elevation
10° Elevation
20° Elevation
40° Elevation
69 K
55 K
50 K
51 K
  59 K
45 K
40 K
41 K

67 K
56 K
52 K
53 K
  69 K
57 K
50 K
49 K
  153 K
129 K
111 K
100 K
 
Pattern Beamwidth (in degrees at midband)
-3 dB, at midband
2.91 1.90 2.86 1.89 1.49 1.37 0.96 0.80 0.52 0.37
Sidelobe Performance 32-29 log Θ
32-29 log Θ
24-25 log (Az plane)
29-25 log (in general)
24-25 log (Az plane)
29-25 log (in general)
29-25 log
Cross Polarization Isolation (minimum)
On Axis (LP mode)
Within 1.0 dB BW (LP mode)
On Axis (CP mode)
Within 1.0 dB BW (CP mode)
30 dB
26 dB
15.3 dB*
15.3 dB*
30 dB
26 dB
17.5 dB*
17.5 dB*
30 dB
26 dB


30 dB
26 dB




21.3 dB
21.3 dB


21.3 dB
21.3 dB
35 dB
27 dB


35 dB
35 dB


30.8 dB
29.8 dB


30.8 dB
27.8 dB


VSWR 1.30:1
(17.7 dB)
1.30:1
(17.7 dB)
1.30:1
(17.7 dB)
1.30:1
(17.7 dB)
1.30:1
(17.7 dB)
1.30:1
(17.7 dB) 
1.30:1
(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

0 dB
-110 dB

-110 dB
0 dB

0 dB
-85 dB

-30 dB
0 dB

0 dB
-85 dB

-85 dB
0 dB
Total Power Handling
1.00 kW CW
5.00 kW CW
2.00 kW CW
2.00 kW CW 400 Watts

 

Mechanical
Antenna Diameter Diameter: 1.8 meters (5.9 ft); Type: single offset
Reflector Construction Carbon fiber
Mount Type Elevation over azimuth
Antenna Travel
Elevation 5° - 90° of reflector boresight
Azimuth ±180° continuous
Polarization
±90°
Stow Height 19 in (48.3 cm)
Antenna Weight 260 lbs. (109 kg)
Integration Capability 100 lbs. (45 kg) on feed boom, axis crossover for rack mounting

 

Environmental
Wind Performance (depending on vehicle capabilities) Ka-Band Ku-Band
Pointing Loss 2 dB Rx Pk 30 mph (48 km/h) gusting to 45 mph (72 km/h) 45 mph (72 km/h) gusting to 60 mph (97 km/h)
Drive 45 mph (72 km/h) gusting to 60 mph (97 km/h) 60 mph (97 km/h) gusting to 75 mph (121 km/h)
Survival
80 mph (128 km/h) any position
80 mph (128 km/h) any position
  120 mph (192 km/h) at stow
120 mph (192 km/h) at stow
Operational Temperature -22° to +130° F (-30° to +55° C)
Survival Temperature -40° to +158° F (-40° to +70° C)
Rain (Operational) Up to 4 in/h (10 cm/h)
Rain (Survival) Up to 6 in/h (15 cm/h)
Relative Humidity 0% to 100% with condensation
Solar Radiation 360 BTU/h/ft2 (1000 Kcal/h/m2)
Radial Ice (survival)
1 in (2.5 cm)
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.