| GENERAL INFORMATION: | Instructors: Sarafopoulos Dimitrios |
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| CREDITS: | ECTS Units: 4 |
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| COURSE PAGE: | ||
Course Description |
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| The wave equation. Wave equation for free space (lossless cases) and in material media (lossy case). Sinusoidal plane waves. Plane waves in a dielectric with small losses and in conducting media. Skin depth. Waves in anisotropic media, dispersive media and in ionosphere plasma. Complex pointing vector theorem. Reflection of plane waves from perfect conductor, normal and oblique incidence. Reflection by a dielectric, normal and oblique incidence. Snell’s Law. Fresnel Reflection Coefficients. Total Internal Reflection. Brewster Angle. Thin films. Polarization. Transmission lines. The Lossless lines. Multiple reflections and reverberations. Lossless transmission line with sinusoidal voltage sources. Voltage standing-wave ratio. Half-wave and quarter-wave transformer. TE and TM waves between parallel conducting plates. Propagation in rectangular waveguides, TE and TM modes. Operating Bandwidth, Group Velocity. Resonant Cavities. Optical fibers. Optical waveguides. Currents and charges as sources of fields. Retarded Potentials. Radiation fields of elemental electric and magnetic dipoles. Fields of a linear wire Antenna. Antenna gain and antenna patterns. Two-dipole array. | ||
