AST 4.5 meter vsat antenna

4.5 Meter Ka-Band VSAT Antenna

Model: FS450-KA

The AST 4.5m (15 ft) antenna delivers exceptional performance for transmit/receive and receive only applications for Ka-band frequencies. This antenna offers a reflector design that incorporates precision-formed panels, truss radials and hub assembly using matched tooling for interchangeable components. It features an innovative Cassegrain or Ring Focus feed and sub-reflector design which results in high gain, low noise temperature, high antenna efficiency and excellent rejection of noise and microwave interference. A large center hub provides spacious accommodation for equipment mounting. The reflector is supported by a galvanized elevation over azimuth kingpost pedestal that provides the required stiffness for pointing and tracking accuracy. The pedestals are designed for full orbital arc coverage and are readily adaptable to ground or rooftop installations.

We also offer custom satellite antenna solutions, please contact us for details.

Feature
* High G/T, excellent pattern characteristics;
* Factory feed system testing;
* All of steel parts to be processed by hot dipped zinc;
* Foundation hardware kit included;
* Air or ocean transport packing;

Options
* Specialized feed systems (e.g extended, multi-band, Ka Band, DBS band);
* Antenna control system with tracking (Step-track, Program Tracking and Inclined Orbit Tracking);
* Reflector and feed deicing systems;
* ODU Support Kits;
* Lightning Rod Kit;
* Grounding Kit;
* Cable-Mounting Kit;
* Turnkey installation and testing;
* Non-penetrating mount;
* High wind configuration;

ELECTRICAL SPECIFICATION
TypeFS450-KA
Operating Frequency, GHzReceiveTransmit
Standard Band 18.3~21.2Standard Band 29~30
Custom band 17.70~21.20Custom band 27.5~31
Gain, Mid-band, dBi56.760
PolarizationLinear/Circular
XPD (on Axis), dB3535
Axial Ratio (Circular-Polarized)1.2
VSWR1.3:1 max1.3:1 max
Antenna Noise Temperature

10° Elevation

20° Elevation

40° Elevation

 

142°K

124°K

112°K

-3dB Beam Width, Mid-band0.22°0.18°
Tx. Power Capability100W
Feed InterfaceWR42WR28
Feed Insertion Loss0.60.4
Isolation, Tx to Rx, dB90
First Sidelobe

90% Peaks under Following Envelop

-14

29-25logθ(1°≤θ<20° )

MECHANICAL SPECIFICATION
Antenna Diameter4.5m
Antenna TypeCassegrain
Mount TypeEl. over Az.
Surface Accuracy (RMS)≤ 0.2mm
Antenna Pointing Range

Azimuth

Elevation

Polarization

 

0°~180°, ±60 °(Continuous)

0°~90°(Continuous)

180°(Continuous)

Drive ModeManual or Motorized
Materials of reflectorAluminum alloy
Finish of steel partsHot dipped zinc
ENVIRONMENTAL SPECIFICATION
Operational Wind72km/h Gusting to 97km/h
Survival Wind216km/h
Temperature-40°C  ~ + 60°C
Relative Humidity100%
Solar Radiation1135Kcal/ h/ m2
Seismic (Survival)0.3g (H), 0.15g (V)
Ice Loading13mm Operational; 25mm Survival

We will answer your email shortly!