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KVH 7.3米 Ka波通信衛(wèi)星天線
Ka  BAND 7.3米衛(wèi)星天線

 


描述
7.3m天線為Tx / Rx 2端口的C，Ku，ka，X波段，4端口或Rx 2端口的發(fā)送/接收，低噪聲和低微波干擾。
 7.3米天線帶有拉伸成型的雙輪廓面板，后支柱和輪轂，便于現(xiàn)場對準(zhǔn)。仰角基座方位角為地面或屋頂安裝提供，軌道電弧覆蓋范圍和驅(qū)動性能。

績效優(yōu)勢
  • Ku，Ka，多頻段可用，鋁制反射板和鍍鋅鋼支撐結(jié)構(gòu)。
  • 自對準(zhǔn)鋁天線反射器 。
  • 方位角基座上鍍鋅鋼。
  • 固定基礎(chǔ)和非穿透基礎(chǔ)可選擇。

 

 

KVH 7.3M

 

Electrical Specification
Type AT730KA
Operating Frequency, GHz Ka band
Receive Transmit
17.7~21.2 27.5~31.0
Gain(dBi) ≥61.1+20lg(f/20) ≥64.2+20lg(f/30)
Polarization circular
Axial Ratio(dB)
(Circular-Polarized)		 0.5 0.5
VSWR 1.30:1 1.30:1
Antenna Noise Temperature 4-port feed
10° Elevation
30° Elevation
50° Elevation		  
≤150K
≤130K
≤110K		  
 
 Sidelobe(dB) ≤-14 ≤-14
Power (KW)   500W/port
Feed Interface WR-34 WR-42
Feed Insertion Loss, Db
(Include Filter)		 ≤0.8 ≤0.8
Isolation, Rx to Tx, dB ≥85  
Circular,Rx to Rx,Tx to Tx ≥20 ≥20
90% Peaks under Following Envelop 29-25lg(q) dBi;1°£q£20°
-3.5dBi;20°26.3°
32-25lg(q) dBi;26.3°48°
-10 dBi;q>48°
Mechanical Specification
Antenna Diameter 7.3m
Antenna Type Ring focus
Surface Accuracy（RMS） ≤0.3mm
Antenna Pointing Range Azimuth ±90°(2 sections)
Elevation 5°~90°(Continuous)
Polarization ±90°
Surface Finishment One primer and white paint 2 times for panels. Hot-dipped galvanization for steel parts except for that need to be in motion and easy to deformation. Installation hardware is stainless.
Weight 4500Kg
Servo control
Azimuth or Elevation Travel Rate 0.01°/s～0.1°/s
Polarization Travel Rate 1°/s
Drive Mode Manual or Motorized
resolution 0.01°or 0.001°
Tracking Accuracy 1/8～1/10 Beam Width
The servo power consumption 3kW/380V，0.5kW/220V
Environmental Specification
Operational Wind 20.8m/s - 28.4m/s
Survival Wind 55m/s
Temperature -40℃～60℃（outdoor），-20℃～55℃（indoor）
Relative Humidity 0%～
Store Up Wind 35m/s
Ice Loading 13mm Operational; 25mm Survival