Evolution of SAR Satellite for Agriculture Applications - APRSAF

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4. SAR Sensor HardwareALOS-2 SAR Antenna Performance• ALOS-2 SAR Antenna has following performance.ItemPerformanceAntenna typeActive Phased Array AntennaAperture size2.9m(EL) x 9.9m(AZ)Beam steering angle θAZ:±3.5deg、 θEL:±30degPolarization TX H,V,45deg,CircularRX H,V,HV dualFoldedconfigurationθEL:±30degDeployedconfigurationθAZ:±3.5deg“Development of Active Phased Array Antenna for ALOS-2”, 2011 Thailand-Japan MicroWave(TJMW2011),2011, Takehito IGUCHI, Yuji OSAWA and et al.20
4. SAR Sensor HardwareALOS-2 SAR Antenna Configuration• ALOS-2 SAR antenna is consists from “Radiating Elements” and“RF Modules”.• As “Radiating Elements”, sub-array antenna is adopted.• For “RF Modules”, GaN device is partly used for the high power amplifier.AELTSub-array antenna : AELTRadiatingElements“Development of Active Phased Array Antenna for ALOS-2”, 2011 Thailand-Japan MicroWave(TJMW2011),2011, Takehito IGUCHI, Yuji OSAWA and et al.21
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Evolution of SAR Satellite for Agriculture Applications - APRSAF

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