Monitoring, operation, and protection of distribution power grids fundamentally rely on the accurate estimation of line impedances. However, line impedance estimation is challenging due to the ...

In physics, there are two great pillars of thought that don't quite fit together. The Standard Model of particle physics ...

In this paper, we propose a reconfigurable prephase omnidirectional metasurface (RPOM). The RPOM can achieve single-beam radiation under normally incident circularly polarized plane waves by a ...