Abstract: Stacked intelligent metasurface (SIM) is an emerging technology that uses multiple reconfigurable surface layers to enable flexible wave-based beamforming. In this paper, we focus on an ...
Editor’s note: This story was updated on Nov. 6, 2025, after the USDA revised the maximum allotments for SNAP benefits. (NEXSTAR) – The plan for November SNAP benefits has changed again. The 42 ...
Abstract: Sparse arrays designed based on fourth-order difference co-array (DCA) can achieve significantly higher uniform degrees-of-freedom (uDOFs). However, most existing fourth-order sparse arrays ...
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