Abstract: This article conceives a unified representation for near-field and far-field holographic multiple-input multiple-output (HMIMO) channels, addressing a practical design dilemma: “Why does the ...

The playing phase of any athlete is quite limited in their lifespan. And more often than not, once a player crosses a certain age, the first dip in performance raises questions about how long the ...

Düsseldorf, Germany — Applying polyurethane to a composite structure is not new, but Germany's Hennecke Group has helped make a novel application that floats — literally. Visitors to the company's ...

Abstract: This paper presents an external quasi-optical converter for a 28 GHz 20 kW continuous wave gyrotron with TE 1,2 operating mode. The gyrotron has a big output diameter, which leads to a small ...