7.3m Antenna

C-Band 2-Port

Quantity

Request for Quotation

Your Query is sent.

  •     *Required Fields

Loading

 

Security policy

 

Delivery policy

 

Return policy

The antenna system consists of dual shaped Cassegrain reflectors with backup structure, a frequency reused feed assembly with corrugated horn, an elevation-over-azimuth limit motion kingpost pedestal., the hub connecting the main reflector with mount. The pedestal provides the guaranteed pointing accuracy required in C band operations.

Antenna system is characteristic of high gain, low sidelobes, low cross polarization, capable for frequency reuse both in transmit and receive bands, high driving/control accuracy  with  angle position display in high resolution.

The radiation patterns meet the associated requirements of INTELSAT IESS, and CCIR for satellites at 2 degrees spacing location in geo- stationary orbit.

Frequency Range
Tx: 5.850 - 6.425 GHz
Frequency Range
Rx: 3.625 - 4.200 GHz
Gain
Rx: 48.05 dB min; Tx: 51.6 dB min.
Antenna Noise Temperature
40K @ 10° Elevation
Antenna Noise Temperature
29K @ 40° Elevation
Antenna Noise Temperature
30K @ 20° Elevation
V S W R
Rx: 1.3:1 (LP); 1.25:1 (CP)
V S W R
Tx: 1.3:1 (LP); 1.25:1 (CP)
Sidelobe Pattern
Beyond first sidelobe meet IESS(Intelsat) or CCIR 580-4 Recommendation
Sidelobe Pattern
First sidelobe level less than -14dB
Cross Pol. Discrimination
35dB (On axis) ; 30dB (within 1 dB Beamwidth)
Axial Ratio (CP only)
Rx: 1.3; Tx: 0.75
Feed Insertion Loss
Rx: 0.15 dB; Tx: 0.10 dB
Power Handling Capability
3 KW
Port to Port Isolation
80 dB
Feed Interfaces
Rx: CPR-229G; Tx: CPR-137F
Pedestal Type
Limited Motion, El.over Az., Kingpost
Azimuth Travel
180° in total
Elevation Travel
0 to 90°
Polarization Travel
±45°
Reflector
Aluminum
Backup Structure
Steel
Pedestal Structure
Steel
Finish
Reflector Surface: Aluminum panels with heat-diffusing white paint
Finish
Pedestal and Steel Structure: Sand blast and hot spray galvanized and two times paint
Surface Accuracy
0.6mm(RMS)
Antenna drive mode
Motor Drive
Operation Wind
50km/h gusts to 97km/h
Survival Wind
200km/h
Ambient Temperature
-40°C to +60°C
Rain
up to 100mm/h
Relative Humidity
up to 100%
Radial Ice (Survival)
25mm on all surface or 13mm on all surface with 130km/h wind gusts
Shock & 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)
0.1G’s vertical
Seismic (Survival)
0.3G’s horizontal

Specific References