Dual K-band/S-Band Tracking Ground Station Antenna for Future Earth Observation Applications

This paper presents the novel K/S band monopulse tracking ground station antenna developed by Indra for the next generation of Earth Observation (EO) applications in the 25.5 to 27 GHz band. A brief review of the mechanical system, the innovative X/Y/Z positioner as well as the monopulse feed, which covers the design and development of a dual band coaxial horn, a TE21 resonant tracking coupler, OMTs and polarizers, are included. Characterization of the complete antenna in both bands is also summarized in the paper.