High-Precision Reflector with Surface Accuracy 0.23mm, Light-Weight, all-aluminum parts reflector antenna at bringing high-quality weather satellite signal acquisition and tracking.
X-band Weather Radar Antennas
Dolph Microwave has produced high-precision, light-weight all-aluminum reflector antennas for X-band weather radar antenna systems, which can be used in various antenna mounts such as AZ/EL, X/Y, and A-E-T.
The 4.5-meter X-band prime focus antenna reflector has been tested and accepted and delivered to the National Meteorological Department.
The reflector’s surface accuracy test is RMS=0.23mm,
The first sidelobe level ＜-29dB, and the left and right sidelobe symmetry ＜0.5dB,
Cross-Pol. on Axis ＜-39.17 dB.
The total weight of the reflector of all aluminum structure ＜430KG
RF & Antenna Specifications
Type: DH 4.5 Meter PF X-band Antenna
Frequency Range: 9.3-9.5 GHz
Gain: ≥ 49.0 dBi
3dB Beam Width: ≤0.55°
VSWR: ≤1.25
Pol: Linear (H & V)
Cross-Pol on Axis: ≤-35 dB
First Sidelobe: ≤-29 dBi
Far Sidelobe Envelope: Far side lobes (beyond ±10°) Level ≤ -35 dB
Mechanical Specifications
Antenna Optics: Prime focus design
Refector Aperture: 4.5 Meters (14.7 Feet)
Reflector Panels: 12 – Precision, Stretched Formed, Aluminum, High Quality Panels
F/D Ratio: 0.4
Surface Accuracy (RMS): ≤0.25mm
Material: all Aluminum (Hub, Reflector Panels, Antenna Structure, Radial Panel Assembly)
Reflector Weight: ≤450KG
