Electromagnetic vortex pulses could be employed for information encoding, high-capacity communication and more ...

The electromagnetic equivalent of smoke rings have been generated at GHz frequencies by researchers from the University of ...

Vortex rings, both in air and electromagnetic waves, are fascinating structures. Recent research has developed methods to ...

They built a device using a broadband conical horn antenna to launch microwave toroidal pulses. In a statement accompanying the release of their paper, the team explained their novel creation: “The ...

The best indoor TV antennas let you receive free over-the-air broadcast TV channels without having to install a large outdoor antenna on the roof of your home. You’ll find that the main ...

One workaround is to use a repeater with a tall antenna, but that requires a lot of infrastructure or a mountainside lair. What if you could just fly your antenna up in a drone? Well, for starters ...