7.3m Ka Band Antenna
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- DESCRIPTION
- TECHNICAL
- SPECIFICATIONS
Probecom provides antenna system rangind from 1.8m to 18.5m for satellite measurement and control, used in communication satellites, commercial satellites, scientiific satellites and manned spacecrafts from telecontrol and telemetry system, tracing and monitoring with features of high-efficiency, low sidelobe, wide frequency and monopolse automatic tracking. Probecom also provides feed system in various frequency, includes C band, Ku band, S band, L band, X band, C/X band and so on.
Probecom's Ka band antenna in X/Y pedestal structure is designed for low orbit satellite. It is dual shaped ring-focus antenna, has high accuracy, low weight and high stability. Antenna main reflector is made in corrugated horn feed, antenna pedestal is full motion X/Y type, both axes uses large gear transmission, gives high structural rigidity and pointing accuracy.
Electrical Specification |
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Type |
KA73T |
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Operating Frequency, GHz |
Ka-Band 4 ports |
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Receive |
Transmit |
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17.7~20.2 |
27.0~30.0 |
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Gain, dBi |
59.8@17.7GHz |
63.6@27.5GHz |
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Polarization |
Circular |
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Axial Ratio, dB |
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0.5 |
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VSWR |
1.30 |
1.30 |
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-3 dB Beam Width, Mid-band |
0.16°@17.7GHz |
0.11°@27.5GHz |
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Typical G/T(EL=30°,4-port) |
34.8dB/K (110k LNA) |
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Feed Interface |
WR-42 |
WR-28 |
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Isolation, Tx to Rx, dB Tx/Tx ,Rx /Rx, Linear , dB |
85 20 |
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Side lobe |
CCIR 580-4 |
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Mechanical Specification |
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Antenna Diameter |
7.3m |
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Antenna Type |
Cassegrain |
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Pedestal Type |
Az/El pedestal |
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Antenna Pointing Range |
Azimuth Elevation |
±90° (3 sections, 60° each) 5°~90°(Continuous) |
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tracking mode |
monopulse auto tracking |
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tracking accuracy |
0.02° |
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Environmental Specification |
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Operational Wind |
61km/h |
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store upWind |
115km/h |
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Temperature |
-30°~+55° |
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Relative Humidity |
100% |
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Solar Radiation |
1135Kcal/h/m² |
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Operation altitude |
3000m above sea |
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Seismic(Survival) |
0.3g(H), 0.15g(V) |
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Ice Loading |
13mm Operational; 30mm Survival
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Main Functions:
a)Monopulse tracking system
b)Full motion X/Y pedestal
c)Extreme axis speed and accelerated speed
d)Quick pointing and tracking satellite
e)Up to 10 satellite for automatic pointing
f) Customized specific band