GeoSat 1.8 Meter KA-Band (27.5~31, 17.7~21.2 GHz) Earth Station Antenna

GA18MKATXRX

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  • Frequency range - 17.7 - 21.2, 27.5 - 31 GHz
  • Feed Interface - WR-42, WR-28

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Specifications:

ELECTRICAL SPECIFICATION

Item

Specification

 

Ka-Band

Receive

Transmit

 

Operation Frequency, GHz

17.7~21.2

27.5~31

Gain, Mid-band, dBi

49.1

52.4

Polarization

Linear/Circular

XPD (on Axis), dB

35

35

XPD (across 1dB Beam width), dB

33

33

 

Axial Ratio(Circular-Polarized), 2-port Feed

1.2

VSWR 1.3

1.3

Antenna Noise Temperature

5°Elevation

160°K

10°Elevation

130°K

 

20°Elevation

105°K

40°Elevation

92°K

-3dB Beam width, Mid-band

0.5°

0.32°

-10dB Beam width, Mid-band

1.09°

0.65°

TX. Power Capability, W

500

Feed Interface

WR-42

WR-28

Feed Insertion Loss

0.6.

0.4

Isolation, TX to Rx,dB

90

First Side Iobe

-14

-14

90% Peaks under Following Envelop

29-25logθ(1°≤θ<20°)

29-25logθ(1°≤θ<20°)

MECHANICAL SPECIFICATION

Item

Specification

 

Antenna Diameter

1.8

 

Antenna Type

Ring-focus

 

Mount Type

El. Over AZ.

 

Surface Accuracy (RMS)

≤ 0.35mm

 

Antenna Pointing Range and speed

 

                           Azimuth

0°~360°, ±10 °(Continuous)

 

                           Elevation

0°~ 90° (Continuous)

 

                           Polarization

360° (Continuous)

 

Drive Mode

Manual or Motorized

ENVIRONMENTAL SPECIFICATION

Item

Specification

 

Operational Wind

72 km/h Gusting to 97 km/h

 

Survival Wind

216 km/h

Temperature

-40℃~+60℃

Relative Humidity

100%

Seismic (Survival)

0.3g(H), 0.15g(V)
Solar Radiation

1135Kcal/ h/ m2

Ice Loading

13mm Operational; 25mm Survival

 

Download the Specification in PDF Format

1.8 Meter KA-Band Earth Station Antenna GA18MKATXRX Specsheet

 

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GeoSat 1.8 Meter KA-Band (27.5~31, 17.7~21.2 GHz) Earth Station Antenna

GeoSat 1.8 Meter KA-Band (27.5~31, 17.7~21.2 GHz) Earth Station Antenna

  • Frequency range - 17.7 - 21.2, 27.5 - 31 GHz
  • Feed Interface - WR-42, WR-28

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