1.8 Meter C180FA Mobilized Flyaway Antenna

The General Dynamics SATCOM Technologies lightweight 1.8- meter motorized flyaway antenna is designed for worldwide transmit and receive operation in C, X, Ku and Ka-band. This flyaway antenna consists of a carbon fiber composite reflector, a cable-driven elevation-over-azimuth positioner and an aluminum/CFRP support structure. This results in a low-weight, motorized antenna with superior stiffness and high performance under wind loading conditions.

 

Product Details

Features

The unique shape and the accurate reflector surface provide exceptionally low sidelobe and cross-polarization performance meeting INTELSAT and EUTELSAT requirements. Repeatability is maintained with precision registration of the nine reflector segments and the feed support structure. The interchangeable feeds are palletized for quick, easy removal and replacement, allowing the end-user to effectively change frequency bands in the field within minutes. The complete antenna system, including a single feed and a motorized positioner, is packaged in four robust, portable cases.

  • Carbon fiber reflector: Lightweight, precision surface and high stiffness
  • Cable-driven positioner: Composite/aluminum construction, lightweight, sturdy
  • Easy deployment: Two-person assembly in less than 15 minutes, captive hardware and precision alignment
  • Auto-acquisition with DVB reference
  • 24 VDC or 100-240 VAC input
  • High performance: Low sidelobes and high EIRP capability

Options

  • Finishes: White, green, tan or per customer spec
  • Feeds: Four-port, co-pol, CP/LP switchable
  • L, C, X, Ku, Ka and DBS-band
  • C-band CP/LP switchable also available
  • Beacon receiver
  • Spectrm Analyzer
  • SSPB / LNB integration

Specifications

C-Band 2-Port Linear Polarized Feed
C-Band 2-Port Circular
Polarized Feed
X-Band 2-Port Circular
Polarized Feed
Ku-Band 2-Port
Linear Polarized Feed
(Cross-Pol Compensated)
Ka-Band 2-Port Circular
Polarized Feed
Electrical (3) Receive Transmit Receive Transmit Receive Transmit Receive Transmit Receive Transmit
Frequency (GHz)
3.625 -
4.200
5.850 -
6.425
3.625-
4.200
5.850 -
6.425
7.250 -
7.750
7.900 -
8.400
10.950 -
12.750
13.750 -
14.500
20.200-
21.200
30.000-
31.000
Antenna Gain, Midband dBi  35.60  39.30  35.30  39.30  41.30  42.00
 44.90  46.50  49.10  52.30
Antenna Noise Temperature
5° Elevation
10° Elevation
20° Elevation
40° Elevation
56 K
42 K
37 K
38 K
  73 K
59 K
54 K
55 K

67 K
57 K
52 K
54 K
  69 K
57 K
50 K
49 K
  155K
133 K
117 K
108 K
 
Typical G/T at 4.000 GHz, 20° Elevation, Clear Horizon
C-Band 35° K LNA
C-Band 50° K LNA
Typical G/T at 7.500 GHz, 20° Elevation, Clear Horizon
X-Band 60° K LNA
X-Band 80° K LNA
Typical G/T at 11.850 GHz, 20° Elevation, Clear Horizon
Ku-Band 70° K LNA
Ku-Band 90° K LNA

17.0 dB/K
16.2 dB/K






15.8 dB/K
15.1 dB/K





 



20.8 dB/K
20.1 dB/K



 






24.1 dB/K
23.4 dB/K
 






25.3 dB/K
24.1 dB/K
 
Pattern Beamwidth (in degrees at midband)
-3 dB, at midband
2.84
1.87 2.88 1.86 1.44 1.33 0.95 0.80 0.55 0.38
Sidelobe Performance
For Angle A beyond Mainbeam to 20°
For Angles from 20°-48°
For Angle A from 1°-30°
For Angle A beyond
Mainbeam to 48°
For Angles from 48°-140°
For Angles from 140°-180°
For Angle A from 30°-130°
For Angles from 130°-180°





32-25 log A
-10 dBi
0 dBi







32-25 log A
-10 dBi
0 dBi







32-25 log A
-10 dBi
0 dBi







32-25 log A
-10 dBi
0 dBi



29-25 log A
32-25 log A



-10 dBi
0 dBi


29-25 log A
32-25 log A



-10 dBi
0 dBi




29-25 log A




-10 dBi
0 dBi



29-25 log A




-10 dBi
0 dBi



29-25 log A




-10 dBi
0 dBi



29-25 log A




-10 dB
0 dBi
Cross Polarization Isolation
On Axis
Within 1.0 dB beamwidth
30.0 dB
26.0 dB
30.0 dB
26.0 dB
15.3 dB
15.3 dB
17.7 dB
17.7 dB
21.3 dB
21.3 dB
21.3 dB
21.3 dB
35.0 dB
27.0 dB
35.0 dB
35.0 dB
24.8 dB
24.8 dB
24.8 dB
24.8 dB
VSWR  1.30:1  1.30:1  1.30:1  1.30:1  1.30:1  1.30:1  1.35:1  1.30:1  1.30:1  1.30:1
Axial Ratio
3.01 dB 4 2.28 dB
1.50 dB 5
1.50 dB
  1.00 dB 1.00 dB
Port to Port Isolation
- Rx/Tx (Rx frequency)
- Tx/Rx (Tx frequency)

0 dB
-70 dB

-30 dB
0 dB

0 dB
-85 dB

-50 dB
0 dB

0 dB
-110 dB

-110 dB
0 dB

0 dB
-85 dB

-30 dB
0 dB

0 dB
-85 dB

-70 dB
0 dB
Feed Insertion Loss
0.20 dB
0.15 dB
0.40 dB
0.20 dB
0.40 dB
0.40 dB
0.30 dB
0.20 dB
0.50 dB
0.45 dB
Output Waveguide Flange Interface
CPR-229G
CPR-137G
CPR-229G
CPR-137G
CPR-112G
CPR-112G
WR-75 Flat
WR-75 Flat
WR-42 Flat
WR-28 Flat
Total Power Handling Capability
2.00 kW CW
2.00 kW CW
5.00 kW CW
2.00 kW CW
0.50 kW CW
RF Specification
975-3381
975-3380
975-3125
975-3437
975-2985

 

Mechanical
Azimuth Travel ±180°
Elevation Travel 0° to 90°
Polarization Travel ±90° (linear polarization only)
Reflector Structure Carbon fiber composite
Pedestal Structure Aluminum/composite cable-driven azimuth-over-elevation positioner on carbon fiber structural case
Boom Mounted HPA Loading ¹ 60 lbs. (27.2 kg)
Transport Configuration
Case Case Size (L x W x H) Total weight (component and case)
Component Case 1 41.12 x 37.12 x 38.82 in (104.4 x 94.3 x 98.6 cm) 174 lbs (78.9 kg)
Component Case 2 30.00 x 30.00 x 28.79 in (76.2 x 76.2 x 73.1 cm) 156 lbs (70.8 kg)
Reflector Case 1 37.25 x 27.18 x 19.44 in (94.6 x 69 x 49.4 cm) 79 lbs (35.8 kg)
Reflector Case 2 37.38 x 37.38 x 38.43 in (94.9 x 94.9 x 97.6 cm) 163 lbs (73.9 kg)
Total System (feeds cased separately) 91.75 ft3 (2.6 m3) 572 lbs (259.5 kg)
Feeds ² Multiple configurations and options available (L, C, X, Ku, Ka or DBS-band)

 

Environmental
Wind Loading Operational (with ballast) 30 mph (48 km/h) gusting to 45 mph (72 km/h)
Wind Loading Survival (with tie-downs) 60 mph (96 km/h)
Pointing Loss (operational winds) Maximum 2.0 dB peak Rx loss at Ku
Operational Temperature -22° to +122° F (-30° to +50° C)
Survival Temperature -40° to +158° F (-40° to +70° C)
Relative Humidity (operational and survival) 0% to 100%
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.