The ionosphere, as an essential component of the Earth’s space environment, contains free electrons that influence the amplitude and phase of radio signals. In the equatorial and low-latitude regions, ...

Atmospheric ducts represent the most frequently observed refractive phenomenon in maritime atmospheric environments. Prior research has shown that the occurrence of elevated ducts exceeds 60% with ...

Since their first photographic documentation in 1989, several classes of TLEs have been identified. Sprites appear as red, filamentary or jellyfish-shaped discharges between 50 and 90 km, triggered by ...

The Department of Defense said Wednesday the Dayton, Ohio-based UES secured a $500 million indefinite-delivery/indefinite-quantity contract and two cost-plus-fixed ...

AI transforms RF engineering through neural networks that predict signal behavior and interference patterns, enabling proactive system optimization and enhanced performance. The convergence of machine ...

Abstract: Multifunctional manipulation of electromagnetic wave propagation has become indispensable in numerous promising applications. However, achieving efficient wave manipulation in complex ...

The line between science and magic can be difficult to draw. Early chemical experimentation bore the name “alchemy.” Its practitioners—among them, Isaac Newton—were eager not only to break down and ...

What are the EMI challenges in submarines? EMI mitigation strategies for underwater systems. Electromagnetic interference (EMI) may affect the performance of any onboard electronic systems in a ...