Foundations of Time-Varying Fields and EM Wave Propagation

Electromagnetic fields power our modern wireless world, yet understanding how they change over time and travel through space can feel incredibly daunting. This text-based course demystifies the mathematical and physical principles of time-varying fields without overwhelming jargon. You will transition from basic static field concepts to a complete understanding of dynamic electromagnetic waves, enabling you to analyze wave propagation across different media and comprehend modern wireless technologies. What you'll learn: - Understand Faraday's Law, Ampere's Law, and the formulation of Maxwell's equations for time-varying fields. - Analyze electromagnetic wave propagation in lossless, lossy, and conducting media. - Calculate key wave parameters including phase constant, attenuation constant, and intrinsic impedance. - Apply Poynting's theorem to evaluate power flow and energy density in electromagnetic waves. - Explore modern applications of wave propagation, including basic antenna radiation and wireless communication channels. - Practice solving foundational electromagnetic problems through step-by-step written derivations and guided exercises. The course begins with essential mathematical foundations and basic definitions before diving deep into time-varying Maxwell's equations. You will then progress through wave equations, boundary conditions, and practical propagation scenarios. This course is designed for engineering students, physics enthusiasts, and beginners looking for a solid theoretical foundation in electromagnetics, requiring only basic calculus knowledge. Start reading today to master the core physics that drive modern wireless technology.