Aperiodic Array Antenna Scan Loss Reduction

The patent applies local quality by varying the amplitude excitation of individual radiating elements according to a tapered distribution. Elements at the aperture edges have lower excitation amplitude compared to central elements, which compensates for the reduced aperture utilization caused by large inter-element spacing. This local adjustment of excitation characteristics optimizes the overall aperture efficiency while maintaining the reduced number of radiators.

The patent employs homogeneity by using identical radiating elements throughout the array aperture. All elements have the same physical dimensions and characteristics, differing only in their excitation amplitude and phase. This uniformity simplifies the design, manufacturing, and maintenance of the array while achieving optimal aperture efficiency through controlled excitation distributions rather than varied element geometries.

The patent applies dynamics by implementing electronic beam steering through dynamic adjustment of phase and amplitude excitation across the array elements. The beam direction can be continuously changed without mechanical movement, and the excitation distribution is optimized for each scan angle to maintain consistent gain and minimize scan losses across the entire field of view coverage.

The patent optimizes power efficiency by carefully controlling the amplitude and phase parameters of each radiating element. The excitation distribution is designed to maximize the power radiated in the desired beam direction while minimizing power lost to sidelobes and other inefficiencies. This parameter optimization allows electronic reconfigurability to be achieved with improved power efficiency compared to conventional phased arrays.