A polarization-switchable array could be the building block for future energy-efficient photonic computers.
A quadrature encoder uses two output channels offset in phase to detect both direction and position with greater precision.
Abstract: In this article, an X-band wide-angle-scanning large-spacing phased array with grating-lobe suppression based on low-profile quad-polarization null reconfigurable (QPNR) elements is proposed ...
Abstract: This article presents an X-/Ku-band shared-aperture phased array antenna featuring a low-frequency ratio of 1.2 and achieving over 30 dB of isolation between the X-band (10.7–12.7 GHz) and ...
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