Optical vortices—light beams carrying orbital angular momentum (OAM)—are characterized by helical wavefronts and phase ...
Abstract: For synthesizing ultrawideband (UWB) beam-scanning aperiodic antenna arrays under mutual coupling (MC) effects, the novel constraint-reduced iterative convex optimization (CRICO) method with ...
Abstract: This paper presents a novel and insightful approach to beamforming a $2\times 2$ antenna array using the theory of characteristic modes. The array comprises four rectangular patch antenna ...
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