Ptychography is a computational imaging technique capable of reconstructing high-resolution phase and amplitude images from overlapping diffraction patterns. However, existing reconstruction ...
Abstract: This article presents a device capable of generating different or hybrid orbital angular momentum (OAM) modes at 225 GHz using a mechanically tunable configuration. The device is composed of ...
Abstract: A novel frequency-dependent feeding network is proposed to feed an antenna array that works in an octave frequency range. To achieve a fixed beam direction in such a broad bandwidth, the ...
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