4.5M Ku band motorized satellite communication antenna

ELECTRICAL SPECIFICATION

Type                                  

SSA-450

Band                                 

C-Band

Ku-Band

Operating Frequency, GHz            

Receive

Transmit

Receive

Transmit

3.4 ~ 4.2

5.85 ~ 6.725

10.95 ~ 12.75

13.75 ~ 14.5

Gain, Mid-band, dBi                     

44

47.3

53.2

54.3

Polarization                            

Linear/Circular

Linear

XPD(on Axis), dB           

35

35

35

35

XPD across 1dB Beam Width, dB

33

33

33

33

Axial Ratio (Circular-Polarized)   

1.30/1.06

1.09/1.06

VSWR                         

1.25

1.25

1.25

1.25

Antenna Noise Temperature       

10°Elevation

30°Elevation

50°Elevation

34°K

24°K

21°K

52°K

41°K

37°K

-3dB Beam Width, Mid-band          -3dB

1.12°

0.72°

0.37°

0.33°

Typical G/T (El>10°)               G/T

25.9dB/K°

(30°LNA)

32.3dB/K

(70°LNA)

Tx. Power Capability, KW             

5

2

Feed Interface                          

CPR-229G

CPR-137G

WR-75

WR-75

Feed Insertion Loss, dB              

0.2

0.2

0.25

0.25

Isolation, Tx to Rx, dB               

90

85

First Sidelobe                     

90% Peaks under Following Envelop

-14

29-25logθ (1°≤θ<20°)

-14

29-25logθ (1°≤θ<20°)

MECHANICAL SPECIFICATION

Antenna Diameter         

4.5m

Antenna Type             

Dual Reflector Modified Ring Focus

Mount Type          

El. over Az

Surface Accuracy (RMS) 

≤0.5mm

Antenna Pointing Range

Azimuth                     

Elevation                    

Polarization                  

±90°, ±65° (Continuous)

7° ~ 90° (Continuous)

180° (Continuous)

Drive Mode          

Manual or Motorized

Motor Drive System       

Azimuth Travel Rate       

Elevation Travel Rate      

Polarization                 

0.11°/S (0.03°/S)

0.17°/S (0.04°/S)

1°/S