Coastal regions are increasingly exposed to low-frequency and long-period waves driven by climate change, sea-level rise, and intensifying extreme events, ...

Every visual tells a story, but that story can easily get lost when the background competes for attention. In digital design, clarity is what separates an effective image from one that is quickly ...

Abstract: The backward wave oscillator (BWO) is an important vacuum electron source that utilizes backward waves to interact with electron beam, resulting in high-frequency self-excited oscillations.

Abstract: This letter proposes a low-sidelobe wideband design methodology for leaky-wave antennas based on an improved discrete mutation particle swarm optimization (IMDPSO) algorithm. The approach ...