Description of 18.5M Large Satellite Dish Tx/Rx Antenna
Our 18.5-Meter Large Satellite Dish Tx/Rx Antenna system of trussed type search and track the Satellite singles among the regulated operational frequency in the random, provides high gain and exceptional pattern characteristics as well as low VSWR. The reflector is a composite structure in which the panels are stretch-formed and riveted with its rings and ribs with high accuracy and supported with backups so as to meet the designed surface accuracy. Large Satellite Dish Tx/Rx Antenna systems are available for a wide range of applications including wireless telecommunication service providers, Internet service provider, system operators and broadcasters throughout the world.
Features of 18.5M Large Satellite Dish Tx/Rx Antenna
1.
Optional C-band, Ku-band, ka-band frequency;
2. Linear or Circular Polarized feed system as option;
3. 2 port or 4 port available as option;
4. The main reflector adopts shaped Cassegrain antenna and designed by advanced
CAD technology so that the antenna can get high effective, low noise
temperature and low sidelobe.
5. Feed horn has the characteristics of highly effective corrugated horn, wide
beamwidth and highly-purified Polarization.
6. High reliable and anti-hash environment ability;
7. The design is more humane, more convenient to operate.
8. Adopt AC Speed motor drive control system, reliable and convenient to
operate.
Specification of 18.5M Large Satellite DishTx/Rx Antenna
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ELECTRICAL SPECIFICATION |
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Antenna |
18.5M Large Satellite Dish Tx/Rx Antenna |
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Operating Frequency, GHz |
Receive |
Transmit |
Receive |
Transmit |
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3.625 to 4.2 |
5.85 to 6.425 |
3.4 to 4.2 |
5.85 to 6.65 |
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Antenna Gain, dBi: Tx(at Tx port to feed) Rx((at Rx port of feed) |
59.68+20lg [f/6(GHz)] 56.23+20lg [f/4(GHz)] |
59.58+20lg [f/6(GHz)] 56.13+20lg [f/4(GHz)] |
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Cross Polarization Isolation for LP |
On Axis: 35dB, Within 1dB beamwidth:30dB |
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Axial Ratio (dB) for CP |
0.5dB per port |
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VSWR |
CP:1.25:1 LP:1.3:1 |
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Antenna Noise Temperature: 5deg Elevation 10deg Elevation 20deg Elevation 40deg Elevation |
48K 36K 29K 24K |
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54K 46K 36K 30K |
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-3dB Beam Width(deg) |
0.26 |
0.18 |
0.26 |
0.18 |
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Total Power Handling Capability |
5kw (cw) per Tx port |
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Feed Interface |
CPR-229G |
CPR-137G |
CPR-229G |
CPR-137G |
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Feed Insertion Loss, dB |
0.3 |
0.3 |
0.3 |
0.3 |
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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 |
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Radiation Pattern: First Sidelobe |
CCIR.580 |
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MECHANICAL SPECIFICAITON |
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Azimuth |
170deg continuous w.r.t true south |
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Elevation |
5 to 90deg |
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Finishes: Reflector Surface Pedestal & Back Structure |
Aluminum panels with high-diffusing white paint Galvanized steel |
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Surface Accuracy |
0.7mm (R.M.S) |
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ENVIRONMENTAL SPECIFICATION |
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Operational Wind |
72km/h Gusting to100km/h |
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Survival Wind |
200km/h |
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Rain |
Up to100mm/h operational and survival |
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Relative Humidity |
Up to 100% operational and survival |
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Temperature |
- 40Deg.c to +60Deg.c |
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Radial Ice(Survival) |
25mm on all surface |
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Shock and Vibration |
As encountered during shipment by commercial air, sea, or truck |
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Corrosive atmosphere |
As encountered in coastal regions and/or heavily industrialized areas |
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Seismic (Survival) |
0.3g (H),0.15g(V) |
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