Product overview
0.45m Ka/Ku Double Frequency Air-Borne SOTM antenna is a type of products developed for international civil aviation satellite communication application. It can support the satellite communication for extending Ka and Ku frequency. The system can always keep the accurate tracking for satellite during the flight, establish the satellite communication link, and realize the high broadband multimedia data communication businesses including WIFI, networking, telephone, fax, video image.
Performance Parameters Table
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ANTENNA PARAMETERS |
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Working Frequency Band |
Reception |
Ku:10.95GHz ~ 12.75GHz |
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Ka:19.20GHz ~ 20.20GHz |
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Transmission |
Ku:13.75GHz ~ 14.50GHz |
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Ka:29.00GHz ~ 30.00GHz |
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Antenna Gain |
Reception |
Ku: ≥32.80dBi@11.85GHz |
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Ka: ≥37.00dBi@19.70GHz |
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Transmission |
Ku: ≥34.50dBi@14.25GHz |
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Ka: ≥40.20dBi@29.50GHz |
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Polarization Mode |
Ku: linear polarization (Automatic adjustment) |
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Ka: circular polarization |
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G/T Value |
Ku: ≥11.5dB/K@11.85GHz |
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Ka: ≥12.8dB/K@19.7GHz |
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Antenna Type |
Dual plate antenna |
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Antenna Caliber |
Equivalent 0.45m |
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TRACKING PARAMETERS |
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Port Isolation |
Ku: ≥85dB |
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Ka Cross Polarization Isolation |
25dB (Typical value) |
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Axial Ratio |
Ka≤2dB |
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Base Model |
Biaxial stabilization |
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Range of Antenna Motion |
Azimuth |
360° continuous rotation |
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Pitch |
0° ~ 90° |
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Polarization |
-90° ~ +90° |
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Tracking Accuracy |
Ku≤ 0.2° (R.M.S) |
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Ka≤ 0.2° (R.M.S) |
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Initial Searching Time |
≤90s |
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Reacquisition Time |
≤1s@90s |
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SYSTEM PARAMETERS |
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Working Power Supply |
28V DC |
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BUC Optional |
BUC external |
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Power Consumption |
≤250W (Excluding power amplifier) |
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OPERATION ENVIRONMENT |
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Working Temperature |
-55°C ~ +70°C |
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Storage Temperature |
-55°C ~ +70°C |
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Working Humidity |
0% ~ 98% |
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Working Height |
16,800 m |
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OTHERS |
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Weight |
60kg (Excluding power amplifier) |
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Overall Dimension |
Φ978mm*H268mm |
Application :
● The key technology of airborne SOTM antenna is to isolate the external disturbance caused by the movement of the airframe by the servo control system during the flight of the aircraft, so that the antenna can always track the target satellite.
● It can realize uninterrupted multimedia communication such as voice, data and video in high-speed motion environment, so it is widely used in battlefield reconnaissance command, rescue and disaster relief.
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