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Aerospace Antennas
SETI of SAST possesses an intact capability of design, simulation, testing and special research and development of antenna. The antennas developed by SETI have widely used in different types of aerospace models, and many new products that have advanced performance and more completed configuration will come into model application phase in succession.
|
Types Iterm |
transmission antenna |
TT&C antenna |
GPS antenna |
||
|
Operating band |
L、S |
X、Ka (spot-beam) |
Ka |
UHF、S、X、Ka |
- |
|
Bandwidth |
8~20MHz |
1000、1500MHz |
2000MHz |
12MHz~200MHz |
10MHz~20MHz |
|
Gain |
-4~2.5dBi |
≥25dBi/33dBi |
≥38dBi |
wide beam: 1dBi~-4dBi narrow beam: ≥21.5dBi |
-5dBi~-4dBi |
|
Beam coverage |
±62 (shaped beam for earth-matching) |
±2.5°/±4°(mechanical moveable) |
±1°(mechanical moveable) |
wide beam: ±60°~±90° narrow beam: 3°~8° |
±75°~±85° |
|
Polarization mode |
circular polarization |
dual circular polarization |
dual circular polarization |
circular/line polarization |
circular polarization |
|
Axis ratio |
≤5dB |
≤1dB |
≤1dB |
≤6dB |
≤5.2dB |
|
Standing wave ratio |
≤1.5 |
≤1.2 |
≤1.2 |
≤1.5：1 |
≤1.5：1 |
|
Electrical interface |
TNC |
BJ84, BJ260 standard wave-guide |
BJ260 standard wave-guide |
SMA、N/TNC、BJ220/320 |
SMA |
|
Weight |
≤1kg(L) ≤0.2kg(S) |
≤7.5kg |
≤10kg |
- |
≤150g |
|
Development period |
T0+6months |
T0+6months |
T0+6months |
T0+6months |
T0+6months |