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Description
Radar Antenna
A new generation of S-band Doppler weather radar antenna and S-band 8.5m diameter Doppler weather radar antenna were produced more than 100 sets totally, and C-band 8.5m diameter dual-polarization weather radar antenna is also available.
Weather radar antenna
Performance index of antenna servo system in S band with single polarization.
|
Series No. |
Item |
Performance requirements |
|
1 |
Aperture |
8.5m |
|
2 |
Working frequency |
2.70GHz～3.00GHz |
|
3 |
Beam width |
≤0.99° |
|
4 |
Gain |
≥44.5dB |
|
5 |
Polarization mode |
· Horizontal line polarization |
|
6 |
First sidelobe level |
≤-29dB；wide angle sidelobe：±2°～10°：located below -29dB～-38dB connection line；±10～90°：≤-42dB |
|
7 |
Voltage to standing wave radio |
≤1.45 |
|
8 |
Rotation range |
360° continuous rotation; pitch -1° to +90° continuous rotation. |
|
9 |
Rotation speed |
Azimuth 0°~36°/s; pitch 0°~36°/s. |
|
10 |
Speed accuracy |
Azimuth, pitch ≤±5% |
|
11 |
Angle acceleration/deceleration speed |
Position, pitch: 15°/S2～19°/S2 |
|
12 |
Position error |
Azimuth and pitch ≤±0.1o |
Airborne X band radar antenna
Performance index
|
Series No |
Item |
Indicator capacity |
|
1 |
Working frequency |
X band |
|
2 |
Beam forming range |
Pitch 45° cosecant squared |
|
3 |
Polarization |
vertical |
|
4 |
Gain |
≥ 23dB |
|
5 |
Sidelobe level |
≤ -20dB |
|
6 |
Antenna weight |
≤ 10Kg |
|
7 |
Antenna volume |
≤400mm×600mm×60mm |
|
8 |
Working temperature |
-55℃～75℃ |
