4.5m Antenna
Ku-Band
Security policy
Delivery policy
Return policy
4.5M antenna adopts Dual Shaped Compact Cassegrain precision-formed reflector mounted on a Az.over El. pedestal providing necessary stiffness and pointing accuracy required in Ku band operation. It is provided with a Rx/Tx (2 ports) feed with corrugated horn and OMT and is of optimized R.F. specification, operates in circular or linear polarization selectable manually and meets any requirements of customers for particular applications.
4.5M antenna meet the regulations of CCIR 580-4 and have been type approved by ASIASAT and INTELSAT. The 4.5M antenna can enter ASIASAT-2 and INTELSAT Network without the need of certification test after installation on sites.
- Frequency Range
- Rx: 12.20 - 12.75 GHz
- Frequency Range
- Tx: 13.75 - 14.5 GHz
- Gain
- Rx: 53.0 dB min; Tx: 54.3 dB min.
- Antenna Noise Temperature
- 60K @ 10° Elevation
- Antenna Noise Temperature
- 50K @ 20° Elevation
- Antenna Noise Temperature
- 44K @ 40° Elevation
- V S W R
- Rx: 1.25: 1; Tx: 1.25: 1
- Sidelobe Pattern
- First sidelobe level less than -14dB
- Sidelobe Pattern
- Beyond first sidelobe meet IESS(Intelsat) or CCIR 580-4 Recommendation
- Cross Pol. Discrimination
- 35dB (On axis) ; 30dB (within 1 dB Beamwidth)
- Axial Ratio (CP only)
- Rx: 0.5: 1; Tx: 0.5
- Feed Insertion Loss
- Rx: 0.50 dB; Tx: 0.50 dB
- Power Handling Capability
- 1 KW
- Port to Port Isolation
- 80 dB
- Feed Interfaces
- Rx: WR75F; Tx: WR75F
- Azimuth Travel
- 120° continuous, 360° in total
- Elevation Travel
- 0 to 90°
- Shipping Weight
- 1500 kg
- Shipping Volume
- 8.2 cube meter
- 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
- Foundation
- 5.0m x 5.0m
- Antenna drive mode
- Manual, Motorization drive optional
- Operation Wind
- 50km/h gusts to 97km/h
- Survival Wind
- 200km/h or 80m/s optional
- 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)
- 0.3G’s horizontal
- Seismic (Survival)
- 0.1G’s vertical
Specific References
Ku-Band