Radiation and Antennas: Noise and Propagation Fundamentals

This lecture covers the fundamentals of noise in radiation and antennas, including internal and external noise sources, thermal noise, and noise in antenna systems. It also discusses wireless communication principles, electromagnetic fields, propagation in different media, and physical phenomena like refraction and reflection. The lecture delves into absorption and diffusion phenomena due to rain, fog, and atmospheric gases, as well as the impact of obstacles on signal propagation, including reflection and diffraction.