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1.8米偏馈卫星通信地球站天线--技术指标 |
1.8m Offset-Feed Antenna, Technical Specifications |
Electric Specifications |
|
Ku-band Reception |
Ku-band Transmission |
电气指标 |
|
Ku-接收 |
Ku-发射 |
Frequency (GHz) |
频率 |
12.25-12.75 |
14-14.5 |
Gain (dB) |
增益 |
45.2 |
46.4 |
SWR |
驻波比 |
1.25:1 |
1.25:1 |
Beamwidth:-3dB |
波束宽度 |
0.47 |
0.38 |
Antenna Noise Temperature |
天线噪声温度 |
2-port feed |
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2-端口 馈源 |
10° Elevation |
|
50 |
20° Elevation |
|
44 |
40° Elevation |
|
38 |
Power Handling Capability |
功率容量 |
|
1Kw/port |
Feed Interface |
接口形式 |
|
WR-75 |
Feed Insertion (dB) |
馈源插损 |
0.25 |
0.25 |
T-R isolation (dB) |
收发隔离 |
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Cross Polarization Isolation (dB) |
交叉极化隔离 |
|
( 0 dB) |
35 |
35 |
(1 dB) |
33 |
33 |
Axial ratio, (dB) |
轴比 |
0.5 |
0.5 |
Sidelobe envelope |
副瓣包络 |
CCLR.580 |
|
Mechanical Specifications |
机械性能 |
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Azimuth Range |
方位范围 |
±60° |
Elevation Range |
俯仰范围 |
5° to 90° |
Foundation Parts |
预埋件 |
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Surface Accuracy |
表面精度 |
0.3mm |
Coating |
喷漆 |
Spray-paint(white) |
Environmental Specifications |
环境特性 |
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Operating Wind Speed |
工作风速 |
20m/s (72km/h) |
|
|
To 27m/s (97km/h) |
Max Wind Speed |
生存特性 |
55.6m/s (200km/h) |
Ambient Temperature |
温度 |
- 30° to 60° |
Relative Humidity |
湿度 |
0% to 100% |
Vibrations |
地震 |
0.3G, horizontal |
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0.15G, vertical |
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