KVH 7.3米 Ka波通信卫星天线 Ka  BAND 7.3米卫星天线

描述 7.3m天线为Tx / Rx 2端口的C，Ku，ka，X波段，4端口或Rx 2端口的发送/接收，低噪声和低微波干扰。  7.3米天线带有拉伸成型的双轮廓面板，后支柱和轮毂，便于现场对准。仰角基座方位角为地面或屋顶安装提供，轨道电弧覆盖范围和驱动性能。 绩效优势 Ku，Ka，多频段可用，铝制反射板和镀锌钢支撑结构。 自对准铝天线反射器 。 方位角基座上镀锌钢。 固定基础和非穿透基础可选择。

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