Development of Compact SAR Systems for Small Satellite

This paper presents the proto-flight model test results of X band synthetic aperture radar for small satellites with 130kg mass. The specification of SAR performance is single polarization SAR with 3m ground resolution for strip map mode. Optional 1 m ground resolution can be achieved with sliding spot light mode under condition of limited valus of NESZ. The paper describes the unique antenna system, the RF power amplifier, high speed data storage/transmission system, and the ground SAR response test results.