VALIDATION MEASUREMENTS FOR ON BOARD ANTENNAE RADIATION PATTERNS PREDICTION SOFTWARE

摘要

The effect of the platform in the radiation pattern of antennae on board satellites, aircraft or ships has to be taken into account in order to know the actual performance of antenna systems. To have an evaluation of this effect, software prediction codes are developed, providing a fast, cost efficient and comfortable solution compared to the usual measurement campaigns. Nevertheless, these codes have to be validated. Specific tests have been done in order to validate the prediction code FASANT, developed by the Universidad de Cantabria from Spain and based on the Uniform Theory of Diffraction (UTD). A description of the code is first done to follow with the measurement project that has been performed at the INTA faculties in Madrid. A mountable mock-up of the Hispasat satellite has been used to obtain different configurations. Special geometrical shapes have been added to the satellite platform to check for different scattering effects.