Arduino has just announced the Arduino Matter Discovery Bundle (AKX00081), an all-in-one development kit designed to help ...

There was a time when only the richest ham radio operators could have a radio with a panadapter. Back in the day, this was ...

The 1983 US Postal Service first-day cover for the 20-cent Edwin Howard Armstrong commemorative stamp from the American Inventors series, featuring a Colorado Silk cachet illustrating Armstrong at his ...

Abstract: Wireless power transfer is a promising technology for charging drones, although many drones impose strict requirements on the weight and size of the on-board equipment. This article proposes ...

Abstract: In this paper, we present a novel orthogonal Doppler frequency modulation (ODFM) to meet the challenging requirements of high-mobility communications. Firstly, we revisit the basic concepts ...