Helical pulses, shaped like flying electromagnetic conches, long predicted but never directly observed, have now been ...
In yet another sign that winter weather is either here or will be soon, the dreaded polar vortex is making news yet again. Its potential arrival in the United States over the next few weeks is cause ...
LINCOLN, Neb. — A University of Nebraska–Lincoln researcher is addressing the pressing issue of spectrum scarcity with a groundbreaking approach to wireless communication. Shubhendu Bhardwaj, an ...
Researchers 3D-printed a low-cost and efficient device that generates twisting light beams with orbital angular momentum and features integrated gain-filtering. WASHINGTON — Researchers have developed ...
A team of researchers at Columbia Engineering have created lightweight, flexible radio-frequency (RF) communications antennas that can disseminate information over long distances. As a midwestern ...
(Nanowerk News) Imagine taking the radio frequency properties of the dish antennas you see on rooftops and knitting them into a wearable garment -- a sweater or a blanket that is ultralight, portable, ...
Abstract: In this paper, we present an antenna which can radiate vortex waves by introducing rotationally symmetrical four slits on an irregular pentagon patch. The four slots are located on the ...