Description
Description
Alignsat 4.5m Ka band antenna is a high performance antenna designed for Ka-band satellite communications, the antenna includes Feed Horn, Polarizer, OMT and Filter. The antenna is a rugged, commercial quality product suitable for the most demanding applications.
Features
Alignsat 4.5m Ka band antenna is a high performance antenna designed for Ka-band satellite communications, the antenna includes Feed Horn, Polarizer, OMT and Filter. The antenna is a rugged, commercial quality product suitable for the most demanding applications.
Features
- 12- pieces precision reflector
- Precision Az/El Mount, Hot-Dip Galvanized.
- Casse grain antenna
- Linear or Circular Polarization
| Electrical Specification | ||||
| Type | AT-4.5Ka | |||
| Electrical | Ka-Band Circular | Ka-Band Circular | Ka-Band Linear | |
| Operating Frequency (GHz) Receive Transmit |
20.20 - 21.20 GHz 30.00 - 31.00 GHz |
19.40 - 21.20 GHz 29.20 - 31.00 GHz |
18.70 - 21.20 GHz 27.00 - 31.00 GHz |
|
| Midband Gain ( +/- .5 dB) Receive Transmit |
56.7dBi 60.1dBi |
56.6 dBi 60.0 dBi |
56.4dBi 59.7dBi |
|
| VSWR | 1.3:1 max | 1.3:1 max | 1.5:1 max | |
| Beam width(-3 dB ) | Rx: 0.22° Tx: 0.15° | Rx: 0.23° Tx: 0.15° | Rx: 0.23° Tx: 0.16° | |
| Antenna Noise Temperature 10° Elevation 20° Elevation 40° Elevation |
142 K 124 K 112 K |
142 K 124 K 112 K |
145 K 126 K 109 K |
|
| Power Handling | 100 W | 100 W | 100 W | |
| Cross Polarization Isolation On Axis Within 1.0 dB Beam width |
26dB 25dB |
26dB 25dB |
35 dB 33 dB |
|
| Output Waveguide Interface Flange | Rx: WR42 Tx: WR28 | Rx: WR42 Tx: WR28 | Rx: WR42 Tx: WR28 | |
| First Side lobe90% Peaks under Following Envelop |
-14 29-25logθ(1°≤θ＜20°) |
|||
| Mechanical Specification | ||||
| Antenna Diameter | 4.5m | |||
| Antenna Type | Cassegrain | |||
| Surface Accuracy（RMS） | ≤0.3mm | |||
| Antenna Pointing Range | Azimuth Elevation Polarization |
±85°（3 sections） 0°~90°(Continuous) ±360°(Continuous) |
||
| Drive Mode | Manual or Motorized | |||
| Antenna reflector Material | Aluminum Alloy | |||
| Finish of steel parts | Hot dipped Zinc | |||
| Environmental Specification | ||||
| Operational Wind | 72km/h gusting to 97km/h | |||
| Survival Wind | 216km/h | |||
| Temperature | -40°~+60° | |||
| Relative Humidity | 100% | |||
| Solar Radiation | 1135Kcal/h/m² | |||
| Seismic(Survival) | 0.3g(H), 0.15g(V) | |||
| Ice Loading | 13mm Operational; 25mm Survival | |||