1. Main function
6.0M THA antenna system has high reliability, good environmental adaptability and good maintainability, it can be frequently adopted in satellite test orbit determination systems.
2 Technical Specifications
2.1 Electrical Specification
- Operating Frequency Tx：5850～6725MHz Rx：3400～4200MHz
- Gain Tx：7+20lg(f/6.2)dBi（Receiving filter output）
Rx：45.3+20lg(f/3.9)（Transmitting filter output）
（f：Operating Frequency GHz）
- Polarization
Four-port dual-line polarization and dual circular polarization converted (program control, manual option )
Linear polarization angular program control
- Antenna Noise Temperature: 20°EL /60K
- Radiation Pattern: First Sidelobe: ≤-14dB
Wide-angle sidelobe (peak value of 90°）
29－25lgθ (dBi) 1°≤θ≤20°
－3.5 (dBi) 20°＜θ≤26.3°
32－25lgθ (dBi) 26.3°＜θ≤48°
－10 (dBi) θ＞48°
- Axis Ratio Polarization：5dB
- Linear polarization
Axial cross polarization isolation ≥35dB（Axis）
≥30dB（Off-axis gain decreases by 1dB）
- Port isolation
TX-RX 85dB（Linear and circular polarization）
RX-RX 20dB（Circular polarization）35dB（Linear polarization）
TX-TX 20dB（Circular polarization）35dB（Linear polarization）
- VSWR
Circular polarization 1.25
Linear polarization 1.25
- Power Capability: 3KW Continuous wave / per port
- Interface type ：BJ70 wave guide（CPR137 matching flange interface）
Rx.：BJ40 wave guide（CPR229 matching flange interface）
2.2 Mechanical Specification
- Diameter: 6M
- Antenna Pedestal Type: Turntable pedestal AZ-EL control
- Antenna Drive Mode: Dual motor drive
- Travel range：AZ： 0°～350°，EL：0°～90°，：±90°
- Travel speed：AZ/EL 0.01°～5°/S （Continuously adjustable）
- Two-channel rotating joints for AZ and EL
Transmission gear with dust proof and sand-proof design
- Interface location
Upstream: power amplifier output port flange (2 channels at the same time),
Downstream: 1:2 low noise amplifier input port flange
2.3 Servo tracking specification
- ACU Surface Accuracy: Pointing: 0.01°, polarization 0.1°
Range：AZ：0.00°～359.99° EL：0.00°～89.99°
Working mode: manual, pointing, step tracking, position preset, standby
RS-422 Monitoring interface: Ethernet port / RS-422
Device local display and control functions
- Pointing accuracy 1/8 beamwidth（m.s）
- Tracking accuracy 1/10 beam width
- Configure the handheld control terminal
2.4 Environmental Specification
- Temperature
Outdoor: -40℃～＋60℃
Indoor: 0℃～＋30℃
- Relative Humidity
Outdoor: 5%～100%
Indoor: 0%～95%
- Rain: 100mm/h max
- Operational Wind
Steady wind 14m/s, gust 20m/s (Normal working wind speed)
Steady wind 20m/s, gust 28m/s (Reduced precision working wind speed)
56m/s (survival wind speed)
- Seismic (Survival): Resistance to 9 Degree Earthquakes
- Solar radiation: 100Kcal/h/m2
- With feed port blowing rain and snow function (including heating and monitoring capability)
- with feed port anti-bird function
- Antenna Designed Service Life: ≥15Years
