IMPROVED ANTENNA FOR SAR CALIBRATOR

THIS PROPOSAL DESCRIBES A PLAN FOR THE IMPROVEMENT OF THE ANTENNAS OF A SAR CALIBRATOR. THE IMPROVEMENTS ARE SOUGHT IN TERMS OF LOW CROSS POLARIZATION, LOW SIDELOBE, LOW COST AND WEIGHT, IMPROVED STABILITY, ETC. WE PROPOSE TO USE NUMERICAL MODELING AND EVALUATE THE PERFORMANCE OF VARIOUS ANTENNA CONFIGURATIONS UNDER REALISTIC ENVIRONMENT. SEVERAL ANTENNA CONFIGURATIONS WILL BE CONSIDERED. RESULTS OF THE NUMERICAL ANALYSIS WILL ALLOW US TO SENSIBLE DECISIONS ABOUT THE APPROPRIATE CHOICE OF THE OPTIMIZED ANTENNA CONFIGURATION. WE THEN CONSTRUCT A PROTOTYPE AND MEASURE ITS PERFORMANCE IN A LABORATORY ENVIRONMENT.