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A total of 7 navigation antennas, have been developed by EADS CASA Espacio within the frame of GSTB-V2 and IOV projects. All these antennas have been fully tested and already delivered, showing very good performance and very repetitive results along the models. Different solutions have been studied in order to improve these performances. Both optimizations (amplitude and geometry) lead to great improvement...
Within the frame of Galileo project, EADS CASA ESPACIO has been developing the navigation antenna for the space segment of the future European Global Positioning System. The main antenna requirements are the isoflux corrected pattern in the earth coverage (12.67deg semi-cone angle), circular polarisation, (around 1 dB axial ratio in the coverage), two independent self-diplexed L band (1.15-1.6 GHz)...
A full-wave methodology has been used to analyse the GALILEO system navigation antenna for the space segment of the global positioning system. It is a multilayer array structure composed by cavity-backed microstrip patches in stacked configuration, and coaxial probe feeding. It follows a hexagonal regular lattice that makes possible to perform a modular analysis in two steps. First, each isolated...
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