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Brand Name: Antesky
Place of Origin: China (Mainland)

Specifications

20m earth station antenna for sale
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Introduction
Our 20m earth station antenna is trussed type antenna with high gain, low VSWR and exceptional pattern characteristics. It can search and track satellite signals within the regulated operational frequency randomly.  Its reflector is with composite structure, in which the panels are stretch-formed and riveted with high accuracy, and supported with back structures to satisfy the designed surface precision. This kind of antenna also can be used in wide areas in the world, like  Internet service provider, system operators, wireless telecommunication service providers and broadcasters. Features

Optional linear or circular Pol. feed system

C-band, Ku-band and Ka-band to choose

The shaped Cassegrain antenna main reflector is designed by advanced CAD technology so that it can get low sidelobe, low noise temperature and high effectiveness.

Adopt corrugated horn with high effectiveness, polarization with high purity and wide beamwidth.

High reliability and anti-harsh environment capacity.

2 port and 4 port are choosenable

Operating more conveniently and design with more humanization.

Specification

ELECTRICAL SPECIFICATION

Diameter

20M

Operating Frequency, GHz

Receive

Transmit

Receive

Transmit

3.625 to 4.2

5.85 to 6.425

3.4 to 4.2

5.85 to 6.65

Radiation Pattern:First Sidelobe

CCIR.580

Axial Ratio (dB) for CP

0.5dB per port

Antenna Noise Temperature:

5deg Elevation

10deg Elevation

20deg Elevation

40deg Elevation


48K

36K

29K

24K



54K

46K

36K

30K


VSWR

CP:1.25:1   LP:1.3:1

Cross Polarization Isolation for LP

On Axis: 35dB, Within 1dB beamwidth:30dB

Port to Port Isolation: Tx to Rx(Tx Freq)

Rx to Rx

Tx to Tx(Same Band)

85dB

CP: 20dB LP: 30dB

CP: 20dB LP: 30dB

Antenna Gain, dBi: Tx(at Tx port to feed)

Rx((at Rx port of feed)

60.30+20lg [f/6(GHz)]

56.85+20lg [f/4(GHz)]

60.20+20lg [f/6(GHz)]

56.75+20lg [f/4(GHz)]

Feed Interface

CPR-229G

CPR-137G

CPR-229G

CPR-137G

-3dB Beam Width(deg)

0.24

0.16

0.24

0.16

Total Power Handling Capability

5kw (cw) per Tx port

Feed Insertion Loss, dB

0.3

0.3

0.3

0.3


MECHANICAL SPECIFICATION

Azimuth

0 to170deg continuous(w.r.t true south)

Elevation

5 to 90deg (continuous)

Finishes: Reflector Surface

Pedestal & Back Structure

Aluminum panels with high-diffusing white paint

Galvanized steel

Surface Accuracy

0.7mm (R.M.S)

ENVIRONMENTAL SPECIFICATION

Operational Wind

72km/h Gusting to100km/h

Survival Wind

200km/h

Temperature

– 40Deg.c to   +60Deg.c

Radial Ice(Survival)

25mm on all surface

Shock and Vibration

As encountered during shipment by commercial air, sea, or truck

Relative Humidity

Up to 100% operational and survival

Seismic (Survival)

0.3g (H),0.15g(V)

Rain

Up to100mm/h operational and survival

Corrosive atmosphere

As encountered in coastal regions and/or heavily industrialized areas

Specification02

Operational Wind: 72km/h Gusting to100km/h

Survival Wind: 200km/h

Rain: Up to 100mm/h operational and survival

Relative Humidity:  Up to 100% operational and survival

Temperature: – 40Deg.c to  +60Deg.c

Radial Ice(Survival): 25mm on all surface

Shock and Vibration: As encountered during shipment by commercial air, sea, or truck

Corrosive atmosphere: As encountered in coastal regions and/or heavily industrialized areas

Seismic (Survival) areas: 0.3g (H),0.15g(V)

Azimuth: 0 to170deg continuous(w.r.t true south)

Elevation: 5 to 90deg (continuous)

Finishes: Reflector Surface:  Aluminum panels with high-diffusing white paint

Pedestal & Back Structure:  Galvanized steel

Surface Accuracy: 0.7mm (R.M.S)

Diameter: 20M

Operating Frequency, GHz:    Receive                Transmit                     Receive                Transmit          

                                       3.625 to 4.2        5.85 to 6.425            10.95 to 12.75       14.0 to 14.5   

Antenna Gain, dBi: Tx(at Tx port to feed), Rx((at Rx port of feed):  60.30+20lg [f/6(GHz)]             60.20+20lg [f/6(GHz)]
                                                                                           56.85+20lg [f/4(GHz)]             
56.75+20lg [f/4(GHz)]

Cross Polarization Isolation for LP:  On Axis: 35dB, Within 1dB beamwidth:30dB

Axial Ratio (dB) for CP: 0.5dB per port

VSWR: CP:1.25:1   LP:1.3:1

Antenna Noise Temperature:  5deg Elevation         48K            54K

                                        10deg Elevation       36K            46K

                                        20deg Elevation       29K            36K

                                        40deg Elevation       24K            30K

-3dB Beam Width(deg):  0.24   0.16    0.24   0.16

Total Power Handling Capability: 5kw (cw) per Tx port

Feed Interface: CPR-229G  CPR-137G  CPR-229G  CPR-137G

Feed Insertion Loss, dB: 0.3

Port to Port Isolation: Tx to Rx(Tx Freq), Rx to Rx, Tx to Tx(Same Band):  85dB; CP: 20dB LP: 30dB; CP: 20dB LP: 30dB

Radiation Pattern:First Sidelobe: CCIR.580