For years, astronomers talked about coronal mass ejections on other stars almost like ghost stories. You hear signs, hints ...
Abstract: High-efficiency wideband linear-to-circular polarization converters (LCPCs) attract extensive attention from engineers. However, the mechanism contributing to their high efficiency is seldom ...
Abstract: This article presents a novel design method for a dual-band shared-aperture linear-to-circular polarization (LP-to-CP) converter. High-impedance structures and a bandpass frequency selective ...