Some of the lecture notes were prepared in LaTeX by Alan Dunn, a former MIT student. He used Prof. Zahn’s handwritten notes to produce them.
H/M = Haus, Hermann A., and James R. Melcher. Electromagnetic Fields and Energy. Englewood Cliffs, NJ: Prentice-Hall, 1989. ISBN: 9780132490207.
SES # | TOPICS | LECTURE NOTES |
---|---|---|
I. Maxwell’s equations | ||
L1 |
Coulomb-Lorentz force law; Maxwell’s equations in integral form; simple electric and magnetic field solutions using Gauss’ and Ampere’s laws for point, line, and surface charges and currents; superposition; simple cylindrical and spherical source problems Demos: H/M 10.2.1 - Edgerton’s Boomer |
(PDF) |
L2 | Derive boundary conditions; apply boundary conditions to surface charge and surface current problems | (PDF) |
L3 |
Divergence and Stokes’ theorems; Maxwell’s equations in differential form; electroquasistatics and magnetoquasistatics (MQS); potential and the gradient operator Demo: H/M 10.0.1 nonuniqueness of voltage in an MQS system |
(PDF) |
L4 | The electric field, electric scalar potential, and the gradient; Poisson’s and Laplace’s equations; potential of point charge; Coulomb superposition integral | (PDF) |
L5 | Method of images | (PDF) |
L6-L7 |
Lecture 6Media: dielectric, conducting, and magnetic constitutive laws; charge relaxation Demos: H/M 6.6.1 artificial dielectric; 9.4.1 measurement of B-H characteristic (magnetic hysteresis loop) Lecture 7Conservation of charge boundary condition; Maxwell capacitor; magnetic dipoles and circuits; reluctance |
(PDF - 1.2 MB) |
II. Plane waves | ||
L8 | Wave equation; Poynting’s theorem | (PDF) |
L9 | Oblique incidence on a perfect conductor; transverse magnetic (TM) waves with oblique incidence on lossless media described by ε and µ; reflection and transmission; transverse electric (TE) waves with oblique incidence on lossless media | (PDF) |
III. Transmission lines and waveguides | ||
L10 |
Parallel plate transmission lines; wave equation; sinusoidal steady state Demo: H/M 13.1.1 visualization of standing waves |
(PDF) |
L11 |
Gamma plane; Smith chart; voltage standing wave ratio (VSWR); λ/4 transformer Demo: V(z,t), I(z,t) movies |
(PDF - 2.6 MB) |
L12-L13 |
Lecture 12Wave equations (lossless); transient waves on transmission lines Demo: H/M 14.4.1 transmission line matching, reflection, and quasistatic charging Lecture 13Reflections from ends; driven and initial value problems |
(PDF - 2.5 MB) |
L14 | Rectangular waveguides; TM and TE modes; cut-off | (PDF) |
IV. Fields and forces | ||
L15 |
Dielectric waveguides Demo: evanescent waves |
(PDF) |
L16-L17 |
Lecture 16Energy in electric and magnetic fields; principle of virtual work to find electric and magnetic forces; magnetic circuit problems Demo: H/M 11.6.2 force on a dielectric material (video) Lecture 17Synchronous rotating machines Film: Synchronous Machines |
(PDF) |
L18 |
Self-excited electric and magnetic machines Demo: H/M 7.7.1 van de Graaff and Kelvin generators (video); self-excited commutator machines |
(PDF - 1.3 MB) |
V. Antennas and radiation | ||
L19 | Radiation by charges and currents; setting the gauge; Lorentz gauge; superposition integral solutions for scalar and vector potentials; radiation from a point electric dipole; receiving antenna properties | (PDF) |
L20 |
2 element array; broad side and end-fire arrays Demo: radiation patterns |
(PDF - 1.1 MB) |
L21 | Transmitting and receiving antennas; wireless and optical communications | (PDF - 1.5 MB) |
VI. Acoustics | ||
L22 | Acoustic waves | (PDF - 2.5 MB) |
L23 | Course review | (PDF - 1.2 MB) |