Imaging system fed by a quasi-optical beam-forming network for Ka-band satellite applications

A quasi-optical system in Substrate Integrated Waveguide (SIW) technology is proposed to feed the primary array of an imaging system for satellite applications in Ka-band. An in-house Physical Optics (PO) tool is used for the complete antenna design reducing the phase aberrations of the imaging system and at the same time improving the Earth coverage by the Satellite. Measurement results validate the overall approach.