An R and D model of a synthetic aperture radar antenna

The test results of an R and D model of Synthetic Aperture Radar Antenna (SARA) for ERS-1 (Japanese Earth Resources Satellite-1) are summarized. Critical structural and mechanical components test, electrical performance test, deployment test and thermal deformation tests were performed and an environmental tests model was developed. The deployment test, thermal deformation test and 128 element tests (one of the electrical tests) indicate that the model meets expectations.