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Ka Band Antenna
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Ka Band Antenna

6.2 KA Tx/Rx Antenna

Characteristics:

ü Meets or exceeds CCIR 580 and INTELSAT requirements

ü Ring focus designed;

ü High gain, Low sidelobe, High G/T rate;

ü Hot-dip zinc processed Antenna mount, with strong corrosion resistant ability;

ü Linear or circular polarization optional;

ü Reasonable structure and easy operation. 

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Q
Description

RF specifications

Model NS-SECK-620
  Operating Frequency GHz Ka band
  17.7～21.2 27.5～31GHz
  59.87@19.95GHz 63.34@29.75GHz
Polarization Linear, circular
XPD dB(linear) 35 35
Axial Ratio（2 port, circular） 1.25 1.25
Axial Ratio（4 port, circular） 1.0 1.0
VSWR 1.25：1 1.25：1
Noise temperature EL :  10° 30° 50°   115k 74k 70k       /  
G/T dB/K，10°El 35.09  /
-3dB beam width 0.167° 0.112°
Insertion loss, dB 0.6 0.6
Power capacity, KW   5
Interface WR-42 WR-28
Rx-Tx isolation, dB 85
First sidelobe, dB Far sidelobes,  dBi -14 29 - 25 logθ（1°≤θ＜20°） -14 29 - 25 logθ（1°≤θ＜20°）
Mechanical specifications
Antenna diameter 6.2 m
Antenna type Ring focus
Antenna mount type EL over AZ
RMS ≤0.3mm
Antenna weight（N.W） 3500（motorized）
Antenna travel range AZ EL Pol 0-355° 5°～90° ±90°
Antenna drive mode Motorized
Servo system AZ rotation speed EL rotation speed Pol rotation speed   0.1°/S 0.05°/S 1°/S 

 Environment specifications

Working wind speed 72 km/h
Without damage 216 km/h
Working temperature -30℃～50℃
Humidity 100%
Solar radiation 1135Kcal/h/m²
Ice load Work normally: 13mm ; without damage: 25mm  
Seismic capacity Horizontal: 0.3G;  vertical: 0.1G
Surface treatment Steel parts: hot dip galvanized; aluminum part: primer paint+surface paint
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