Abstract: In this paper, two innovative 4×4 Butler matrix-based antenna system designs are proposed for mmWave/5G applications which are capable of beam scanning/steering at Ka-band. By utilizing the ...

Yes, most of MIT’s online AI courses are free for anyone. You can watch the lectures, read the materials, and complete ...

Abstract Healthcare workers are the backbone of resilient health systems, yet in many African countries they operate under extreme occupational stress, inadequate training, poor working conditions, ...