Mechanical antennas represent a disruptive approach to low-frequency communication by exploiting the mechanical oscillation of electric charges or magnetic dipoles to generate electromagnetic ...

Scientists from the Polytechnic Institute of Novgorod State University, together with colleagues from a number of Chinese ...

Submarines are among the most sophisticated vehicles that humanity has ever developed. Their capability to navigate both the ocean surface and deep waters, their capacity to operate silently, and ...

Is the U.S. Navy's ELF antenna in northern Wisconsin still operating? If not, when did it cease operations? The Navy announced in September 2004 that ELF -Extremely Low Frequency Communications System ...

This is Part 1 of a three-part series. As modern wireless communications systems (mainly superheterodyne radio transceivers) are now required to deliver higher performance than ever before, they’re ...