RF Modeling and Measurements of a Reflectarray for Synthetic Aperture Radar for Earth Observations

Design and simulation results of a polarisation-selective reflectarray in Ka band are presented. The reflectarray is part of a dual-offset antenna system for a high-resolution and wide-swath Synthetic Aperture Radar (SAR) instrument that operates in both a high-resolution mode with a directive
beam in one polarisation, and a low-resolution mode with a broader beam in the orthogonal polarisation. Fed by orthogonal modes, a sectoral horn illuminates the reflectarray antenna with different beam widths for the two operational SAR modes. Radiation patterns of the feed and reflectarray antenna system are presented.

Publication: European Conference on Antennas and Propagation (EuCAP)

Place: Madrid, Spain