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