Antesky 4.5M Prime focus antenna is a typical product with 2 port linear/Circular Pol. feed assembly.For this diameter 4.5m antenna, Antesky can also provide C&KU dual bands receive only feed, the user can use one antenna for receiving not only C-band, but also Ku-band, this is a cost-effective solution for most of the users.
4.5M Prime focus antenna Advantage:
Precision compression molded prime focus reflector;
Galvanized steel Az/El mount;
Reinforced ribs and backup structure;
High precison stretch formed aluminum main reflector;
Anti-corrosion and anti-rust surface paiting;
Self-alignment,no special tools for reflector accuracy;
4.5M Prime focus antenna Classic Case
4.5M Prime focus antenna Feed Back from Russia
4.5M Prime focus antenna Specification
| ELECTRICAL SPECIFICATION | ||
| Antenna | C-BAND | Ku-BAND |
| Frequency | 3.625-4.2GHz | 10.95-12.75GHz |
| Midband Gain | 43.2dB | 53.1dB |
| VSWR | ≤1.35 | ≤1.25 |
| -3dB Beamwidth | 1.2° | 0.42° |
| Noise Temperature | 41°K@20°El | 45°K@20°El |
| Polarization | Linear(circular as option) | Linear(circular as option) |
| Feed Interface | CPR229 | WR75 |
| Sidelobe | First Sidelobe ≤-14dB | |
| Envelop P90% ≤ 52 – 10lgθ(D/Δ) – 25lgθ | ||
| MECHANICAL SPECIFICATION | |
| Diameter | 4.5m |
| Reflector material | Aluminum |
| Antenna Optics | Cassegrain prime focus antenna |
| Mount Type | Elevation over Azimuth |
| Mount Type | Elevation over Azimuth |
| Elevation Adjustment | 0°to 90° (continuous) |
| Azimuth Adjustment | 0°to 360° |
| Surface Tolerance | 0.4mm(r.m.s.) |
| Re-installation | 0.5mm(r.m.s.) |
| Paint Color | White |
| Wind Loading | Operational: 80kmphSurvival : 200kmph |
| Temperature | -45°C ~50°C |
| Relative Humidity | 100% |
| Seismic(survival) | 0.3G’s horizontal 0.15 G’s vertical |
