GeoSat 1,8 Meter (17,7 - 21,2, 27,5 - 31 GHz) KA-Band Earth Station Antenna | Model GA18MKATXRX
- Input Freq. - 17.7 - 21.2, 27.5 - 31 GHz
- Feed Interface - WR-42, WR-28
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ELECTRICAL SPECIFICATION |
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Item |
Specification |
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Ka-Band |
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Receive |
Transmit |
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Operation Frequency, GHz |
17.7~21.2 |
27.5~31 |
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| Gain, Mid-band, dBi |
49.1 |
52.4 |
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| Polarization |
Linear/Circular |
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| XPD (on Axis), dB |
35 |
35 |
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| XPD (across 1dB Beam width), dB |
33 |
33 |
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Axial Ratio(Circular-Polarized), 2-port Feed |
1.2 |
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| VSWR | 1.3 |
1.3 |
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Antenna Noise Temperature |
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| 5°Elevation |
160°K |
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| 10°Elevation |
130°K |
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20°Elevation |
105°K |
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| 40°Elevation |
92°K |
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| -3dB Beam width, Mid-band |
0.5° |
0.32° |
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| -10dB Beam width, Mid-band |
1.09° |
0.65° |
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| TX. Power Capability, W |
500 |
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| Feed Interface |
WR-42 |
WR-28 |
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| Feed Insertion Loss |
0.6. |
0.4 |
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| Isolation, TX to Rx,dB |
90 |
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| First Side Iobe |
-14 |
-14 |
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| 90% Peaks under Following Envelop |
29-25logθ(1°≤θ<20°) |
29-25logθ(1°≤θ<20°) |
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MECHANICAL SPECIFICATION |
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Item |
Specification |
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Antenna Diameter |
1.8 |
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Antenna Type |
Ring-focus |
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Mount Type |
El. Over AZ. |
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Surface Accuracy (RMS) |
≤ 0.35mm |
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Antenna Pointing Range and speed | |
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Azimuth |
0°～360°, ±10 °(Continuous) |
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Elevation |
0°~ 90° (Continuous) |
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Polarization |
360° (Continuous) |
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Drive Mode |
Manual or Motorized |
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ENVIRONMENTAL SPECIFICATION |
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Item |
Specification |
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Operational Wind |
72 km/h Gusting to 97 km/h |
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Survival Wind |
216 km/h |
| Temperature |
-40℃~+60℃ |
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| Relative Humidity |
100% |
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Seismic (Survival) |
0.3g(H), 0.15g(V) | |
| Solar Radiation |
1135Kcal/ h/ m2 |
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| Ice Loading |
13mm Operational; 25mm Survival |
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Download the Specification in PDF Format |
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1.8 Meter KA-Band Earth Station Antenna GA18MKATXRX Specsheet |
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