4.5M X/Ka-band Limit Motion Antenna are applied for Telemetry,Tracking&Command/Remote sensing, Deep space missions/Geodesy, Radio astronomy,which is designed and manufactured by Antesky. It supplies continuous stroke, high speed and accelerated velocity, as well as high pointing accuracy/tracking accuracy, the antenna allow all visible operation for GEO Satellite and LEO Satellite.
Servo drive and tracking system can supply each operation modes, all antennas can equip reflector electric heating de-icing system, include integrating infrared heating rods on the antenna reflector. Antenna pedestal support/tower pedestal can be steel structure or reinforced concrete structure. Tower pedestal can be done as a hub equipment room which can supply electronic equipment.
Except the antenna system is supplied by Antesky, all transmitting/receiving electronic products can be customized by the customer; Antesky has a professional project management team to supply design, producing, transportation, installation, debug, and acceptance test, as well as after-sale maintenance and repair service; Antesky is an antenna system who provides turnkey services to the customers.
Specification of 4.5m X/Ka-band Receive only Antenna
| ELECTRICAL SPECIFICATION | |||
| Diameter | 4.5M | ||
| Operating Frequency, GHz | X-Band | Ka-Band | |
| Receive | Receive | ||
| 7.25～7.75 | 17.7～21.2 | ||
| Gain, Mid-band, dBi | 47.5 | 56.4 | |
| Polarization | Circle | Circle | |
| VSWR | 1.35 | 1.35 | |
| Axial Ratio,dB | 2 | 2 | |
| Feed Interface | BJ－84 | BJ－220 | |
| Radiation Pattern:First Sidelobe
Envelop |
≤-14dB | ||
| 29-25lgθdBi (1°≤θ≤20°) | |||
| Mechanical Specification | |||
| Antenna Optics | Ring Focus Antenna | ||
| Mount Type | Main and Sub-surface Modified Ring-focus Antenna | ||
| Azimuth | ±90° (due south as benchmark) | ||
| Elevation | 5°～90° | ||
| Azimuth High Speed | 0.2°/S | ||
| Elevation High Speed | 0.05°/S | ||
| Servo Control and Tracking System | |||
| Tracking and Control Method | Step Tracking, Manual Drive | ||
| Position Display Resolution | 0.001º (Az and El are the same) | ||
| Tracking Accuracy | ≤One-tenth of Receiving Half-power Beamwidth | ||
| Possessing the functions of software limit and hardware limit, the protection equipments of locking and lightning rod. | |||
| ACU Remote Control Interface | Network Port. | ||
| Environmental Specification | |||
| Operational Wind | 72km/h Gusting to 97km/h | ||
| Survival Wind | 200km/h | ||
| Temperature | – 40°C ～ + 55°C | ||
| Relative Humidity | 0%～ 100% | ||
| Solar Radiation | 1135Kcal/ h/ m2 | ||
| Seismic (Survival) | 0.3g (H), 0.15g (V) | ||
Specification for 4.5m X/Ka-Band Antenna
