GS20.0M ESA spec.pdf
Key Features
* Meets CCIR 580 and INTELSAT Requirements
* CP/LP switchable feed
* High RF performance
* Galvanized steel hardware
* Step-track control system
* Different frequency ranges from many feed configurations
* Antenna reflector be pre-assembly in works, special designed taper-pin easy installation and
ensure on site assembly accuracy
Antenna Accessories
* Motorization Kits
* Limit Switches
* ODU Support Kits
* Factory Feed System Testing and Documentation
* Ocean Transport Packing
* Foundation Kit
* Lightening Rod Kit
* Grounding Kit Cable-Mounting Kit
* Anti-icing and Deicing
Options
* L,S,X bands and multi-bands
* 800MHz band with is available
* Full motion antenna
* Feed blower or deicing with automatic controls
* Two or four Tx/Rx port in linear or circular polarized feeds
WITH 4 PORT DUAL LINER/CIRCULAR POL.FEED
Operating Frequency, GHz |
C-BAND |
Ku-BAND |
|
Receive |
Transmit |
Receive |
Transmit |
|
3.4～4.2 |
5.85～6.65 |
10.95～12.75 |
13.75～14.5 |
|
Antenna Gain, dBi:
Tx(at Tx port to feed)
Rx((at Rx port of feed) |
60.20+20lg [f/6(GHz)]
56.75+20lg [f/4(GHz)] |
66+20lg [f/11.8(GHz)]
67.17+20lg [f/14(GHz)] |
|
Cross Polarization Isolation for LP |
On Axis: 35dB, Within 1dB beamwidth:30dB |
|
Axial Ratio (dB) for CP |
0.5dB per port |
|
VSWR |
CP:1.25:1 LP:1.3:1 |
|
Antenna Noise Temperature:
5° Elevation
10° Elevation
20° Elevation
40° Elevation |
2 port feed
54°K
46°K
36°K
30°K |
|
2 port feed
68°K
60°K
52°K
44°K |
|
|
-3dB Beam Width, Mid-band |
0.24° |
0.16° |
0.083° |
0.073° |
|
Total Power Handling Capability |
5kw (cw) per Tx port |
|
Feed Interface |
CPR-229G |
CPR-137G |
WR-75 |
WR-75 |
|
Feed Insertion Loss |
0.4 |
0.4 |
0.5 |
0.5 |
|
Port to Port Isolation:
Tx to Rx(Tx Freq)
Rx to Rx
Tx to Tx(Same Band) |
85dB
CP: 20dB LP: 30dB
CP: 20dB LP: 30dB |
|
Radiation Pattern:First Sidelobe |
≤-14, Meet ITU-RS.580-5 specifications |
|
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Mechanical Specification
|
Antenna Pointing Range
Azimuth
Elevation |
0°～170°/ 0°～360°(Continuous)
0°～90°(Continuous) |
|
Finishes
Reflector Surface
Pedestal & Back Structure |
Aluminum panels with high-diffusing white paint
Galvanized steel |
|
Surface Accuracy (RMS) |
0.7mm (R.M.S) |
Environmental Specification
|
Operational Wind |
72km/h Gusting to 100km/h |
|
Survival Wind |
200km/h |
|
Rain |
Up to 100mm/h operational and survival |
|
Relative Humidity |
Up to 100% operational and survival |
|
Temperature |
-40°C ～ + 60°C |
|
Radial Ice(Survival) |
25mm on all surface |
|
Shock and Vibration |
As encountered during shipment by commercial air, sea, or truck |
|
Corrosive atmosphere |
As encountered in coastal regions and/or heavily industrialized areas |
|
Seismic (Survival) |
0.3g (H), 0.15g (V) |
