Abstract: This paper presents the design of a switchable feeding network that enables polarization diversity in an ultra-wideband (UWB) antenna. The feeding network is built around a tunable ...

National Key Laboratory of Laser Spatial Information, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China ...

A new Times/Siena survey shows a significant shift among voters, as their concerns about the health of the political system overtake other issues. Voters who think America’s political system ... 100% ...

Almost without exception, political riots are caused by the Left, not the Right. Suppression of dissent. The leftist Biden Administration launched the most massive attack on the First Amendment in ...

Abstract: Here we present the design of a multiband cross polarization converter using a frequency-selective surface (FSS), making it suitable for applications in radar, satellite communications, and ...