HIGH-GAIN WIDEBAND PLANAR MICROSTRIP ANTENNA FOR SPACE BORNE APPLICATION

摘要

The invention relates to a high gain wide band planar microstrip antenna with dual polarization for space borne applications comprising planar array of tiles. Each tile is a multilayer printed antenna comprising an upper patch (1 ), a lower patch (2), a thick dielectric foam (3), radome (4), substrate (5) for lower patch, ground plane (8), adhesive layers (9) a composite base plate, two buried feedlines (7). Said tile is characterized by 480 electromagnetically coupled radiating elements arranged in 24 linear arrays of 20 radiating elements and corporate feed network of hybrid type to feed the radiating elements.The antenna is adapted to be installed in a Radar Imaging Satellite fitted with a Synthetic Aperture Radar.