Electromagnetic Field Theory

Review of vector analysis: scalar And vector products: gradient, divergent and curl of a vector and their physical explanation Transformation amongst rectangular, cylindrical and spherical coordinate systems.

Coulomb's law, electric field intensity from point charges, field due to continuous distribution of charges, Gauss’s law, Electric displacement and displacement density potential function, potential field of a point charge, Laplace’s and Poison’s equations. Magnetic field intensity and magneto motive force, Ampere’s Circuital law, Energy stored, Biot Savart law, vector potential, magnetic dipole.

Ampere's work law in differential vector form, continuity of currents, conduction and displacement current. Maxwell's equations and their interpretations, boundary conditions. Wave equations, sinusoidal time varying fields, uniform plane wave in dielectric and conductor media, skin effect and depth of penetration, reflection and refraction of plane waves at boundaries for normal and oblique incidence surface impedance

Poynting’s theorem, interpretation of E x H, simple application, complex poynting vector.

Transmission line theory from the circuit concept, properties; constants; transmission line equations; infinite line; reflections in transmission lines; voltage, current and impedance relations-open and short circuit lines; Experimental determination of line constants. Standing wave ratio; impedance matching, quarter and half wave lines, single stub and double stub matching; circle diagram - Smith chart. Waves between parallel planes: Transverse Electric waves, Transverse magnetic waves; characteristics of TE and TM waves; Transverse Electromagnetic waves; velocity of propagation; Attenuation in parallel plane guides; wave impedance.