Abstract: The infinity and orthogonality of the orbital angular momentum (OAM) of vortex electromagnetic waves (VEMWs) provide a new degree of freedom for the modulation of information. The VEMW ...

A new book imagines what the world would be like if Earth spun faster and faster until days just last two hours.

From plagiarism to planetary corrections, we take a look at Copernicus and the introduction of heliocentricity.

Abstract: True-time delayers (TTDs) are popular analog devices for facilitating near-field wideband beamforming subject to the spatial-wideband effect. In this paper, an adaptive TTD configuration is ...