Abstract: In this paper, the problem of joint time-of-arrival and two-dimensional direction-of-arrival (TOA/2D-DOA) estimation is solved using space-frequency nested array (SFNA) motion. SFNA is ...
Abstract: In this letter, a wideband two-dimensional (2-D) scanning multibeam array antenna is proposed using a novel beamforming network (BFN). First, a novel three-beam Butler matrix (BM) network, ...
For almost two decades, scientists have been trying to move beyond silicon, the material that powers every modern computer chip. Their hope lies in ultrathin 2D semiconductors—materials just one or ...
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