EE 372: Engineering Electromagnetics II Spring 2016

EM “Common Sense” Test 10 minutes

Instructor Information Zhengqing (ZQ) Yun Hawaii Center for Advanced Communications (HCAC) Office: POST 201B Phone:

Times and Location Monday, Wednesday, and Friday 12:30 - 1:20pm Jan. 11 ~ May 13, 2106 Holidays: 1/18 (Mon.), 2/15 (Mon.); Spring break: 3/21 ~ 3/25; 45 hours total Last instruction day: 5/4/16 Final exam: Fri., 5/13/16, 12:00pm – 2:00pm Location: POST 126

Office Hours 1:30 - 2:30pm, M, W, F By appointment, or Just stop by my office, or me

Grading Homework: 30% Two midterms: 40% Final exam: 30% Extra points are possible

Textbooks Electromagnetic Fields and Waves (required) Magdy F. Iskander, Waveland Press, ISBN: X Electromagnetic Waves (optional) D. H. Staelin, et al, Prentice Hall, 1994 ISBN: You are encouraged to read other EM books and papers.

Contents Introduction Brief review of principles of wave motion  Transverse Waves  Longitudinal Waves  Plane Waves, Cylindrical Waves, Spherical Waves Brief review of Maxwell's Equations  Faraday's Law, Ampere's Law, Gauss' Laws  Electromagnetic Waves  The Electromagnetic Spectrum

Contents Laws of reflection and refraction  Fermat’s principle  Derivation of law of reflection  Derivation of law of refraction (Snell’s law)  Other methods for deriving the laws  Boundary conditions revisited Reflection and transmission coefficients  Boundary conditions and polarization  Reflection coefficient  Transmission coefficient Total Reflection and Total Transmission  Total reflection; critical angle  Total transmission: Brewster (polarization) angle First midterm

Contents Total field: incident + reflection on a PEC plane  Perpendicular polarization  Parallel polarization  Standing/propagating waves  Concept of phase velocity  Boundary conditions and the uniqueness theorem Two-plate waveguide  Field expressions/structures: result of multiple reflections  Concept of modes  Cut-off frequency Rectangular waveguide (WG)  Boundary value problems  Separation of variables solution method  Possible modes in a rectangular waveguide  Concept of WG wavelength  Concept of WG impedance Other boundary value problems  Rectangular resonators  Circular waveguides Second midterm

Contents Geometrical optics and ray concept:  High frequency approximation of Maxwell’s equations  The eikonal equation  Wave front and ray concept  Homogenous medium  Laws of reflection/refraction  Fermat’s principle of least time  Ray tracing method  Propagation modeling using ray tracing method (terrain, urban, indoor, and atmosphere) Final exam

Computer Animations & Simulations EM waves are not easy to be observed Computers are available on campus/at home Animations and simulations can explain subtle concepts and reveal physical insight Theory + Experiment + Simulation

Course objectives Understanding fundamental concepts and laws governing the electromagnetic waves Understanding the mathematical formulation of these laws Learning basic problem-solving skills and research procedures

Homework and exams Homework. You need to use all your learned knowledge and skills to solve the problems. All the steps should be clearly presented in the solutions. Calculators and/or computers are needed. Exams are testing your fundamental understanding of the subject. Numerical calculation is minimal. No calculators, computers, or electronic devices are needed.

Tips for Getting an A+ Commitment Attend all lectures Concentrate on EM stuff in classroom Learn problem solving skills from your peers; don’t copy their work Ask EM questions when you have any, not only in classroom, but also awat Participate classroom discussions

You Can Get Extra Points! Solving challenge problems Doing extra homework Sharing news related to EM Finding mistakes in lectures and textbooks

EM is hard! But it is fun, Beautiful, and enjoyable!

There are a few key ideas and techniques that, when mastered, make the subject appear simple and provide great intuition on new questions. Cover and Thomas, Elements of Information Theory