Slot-Array Antenna Feeder Network for Space-Borne $X$ -Band Synthetic Aperture Radar

This paper studies the concept of a new waveguide feeding technique for wideband application of an X-band deployable rectangular parallel-plate slot-array antenna panel network with the vertical polarization for a synthetic aperture radar onboard a 100 kg class microsatellite. The antenna design procedure in high-frequency structure simulator followed by its fabrication and measurement results are...