Antenna
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4.5m Antenna DA-450

Time:2015-07-13 Views:2917 Publisher:0

 

 

Features:

Dual shape ring-focus design

Aluminum major reflector & sub reflector with high precision

High gain and excellent sidelobe performance

Factory feed system and king post pedestal assembled to reduce installation time

No field alignment required

Well in anti-corrosion

Excellent in stability

Circular polarization/ dual linear polarization/ dual circular polarization

2-axis or 3-axis motorized

 

Specification of 4.5m RxTx Antenna



◆    R.F    SPECIFICATIONS

C-Band


RECEIVE                    TRANSMIT

Ku-Band


RECEIVE                   TRANSMIT

1. Frequency(GHz)




2. Typical Gain(dBi)


3. VSWR


4. Beamwidth (-3dB)


5. Antenna Noise Temperature(°K)


10°Elevation


20°Elevation


40°Elevation


6. Typical G/T at 20°EL


7. Power Handling Capability


8. Feed Interface


9. Feed Insertion Loss


10. Tx to Rx Isolation


Feed impedance

11. Axial Ratio (dB)


12. Cross Pol Isolation


On Axis


13. Sidelobes

3.625-4.2                     5.85-6.425

3.4-4.2  ★                5.85-6.725  ★


43.51 at                        47.16 at


F=3.8GHz                     F=6.0GHz


1.25:1                            1.25:1


1.097°                            0.721°


2 Port Feed


36K


29K


24K


25.80dB/K (3.8GHz, 30K LNA)


5KW/Port


CPR-229F                       CPR-137G


0.25dB                           0.2dB


≥85dB

50     Ohms


1.5dB                             1.0dB



≥35dB


CCIR.580-5

12.25-12.75                    14-14.5

10.95-12.75  ★          13.75-14.5  ★


53.53 at                        54.32 at


F=12.5GHz                 F=14.25GHz


1.25:1                           1.25:1


0.346°                          0.316°


2 Port Feed


45K


40K


36K


33.12dB/K (12.5GHz, 70K LNA)


1KW/Port


WR-75F                          WR-75G


0.3dB                          0.25dB


≥85dB






≥35dB


CCIR.580-5

◆    MECHANICAL SPECIFICATION

◆    ENVIRONMENTAL SPECIFICATION


1. Antenna Type                                             Ring-focus


Manual /

2. Drive Type

Motorized


0 to 360°


3. AZ Travel                                                         ±90°(2


segments)


4. EL Travel                                                       5° to 90°


5. POL Travel                                                        ±90°


Precision formed

6. Reflector Material

aluminum


7. Reflector Segments                                          12


King post

8. Mount Type

pedestal


9. Surface Accuracy                                   0.5mm(R.M.S)

1. Wind Loading, Operational (Maintain

60mph(97km/h)

Precision)


2. Wind Loading, Operational (Decrease

65mph(105km/h)

Precision)


3. Wind Loading, Survival (Fixed

125mph(200km/h)

Heavenward)


4. Ambient Temperature                                         -40°C to 60°C


5. Rain                                                                             100mm/h


6. Relative Humidity                                                    0 to 100%


7. Solar Radiation                             360 BTU/h/ft2 (1000Kcal/h/m2)


25mm on all surface or 13mm on all

8. Ice

surface with 130km/h wind gusts


9. Shock and                            As encountered during shipment by


Vibration                                                 commercial air, sea or truck


10. Seismic(Survival)                0.3G’s horizontal, 0.15G‘s vertical