An aperiodic phased array antenna for space-bome synthetic aperture radar

An aperiodic phased array antenna architecture for space-borne Synthetic Aperture Radar (SAR) is presented. The proposed array antenna possesses several advantages compare to traditional periodic arrays, including using phase-only control to fit different beam shaping and steering requirements, and consuming fewer RF energy to generate same receiving signal power level. An executive approach for the design of proposed array is introduced. Performance of proposed aperiodic array when being applied to space SAR application are evaluated. Positive evaluation results demonstrate the feasibility of proposed antenna as well as the effectiveness of the design method.