Research Article
SAR Antenna Pattern Measurement by Internal Calibration Method for GF-3 Satellite
Table 1
SAR antenna parameters of GF-3.
| Parameters | Values |
| Central frequency | 5.4 GHz | Maximum bandwidth | 300 MHz | Polarization | Linear pol, dual pol, quad pol | Polarization isolation | >35 dB | T/R module power | 20 W | Number of T/R modules | 24(Azimuth) × 32(Elevation) for each polarization | Beamwidth | 0.188°(Azimuth), 2.29°(Elevation) | Digital beam control | TX: Phase only (6 bit); RX: Amplitude (6 bit) and phase (6 bit) | Aperture size | 15 m × 1.232 m | Number of panels | 4 | Weight | 980 kg (radiating panels only) |
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