Electromagnetic Engineering

ECE292 Sophomore Seminar18 March 2008

What is Electromagnetics?

- Circuit Theory- Kirchhoff’s Voltage and Current Laws- Current- Resistance- Capacitance- Inductance- Voltage- Electric and Magnetic Energy- Power, Electric Machines- Antennas, Waves and Wave Propagation, Optics and Optical Computing

The study and application of electric and magnetic fields

Electrical Engineering is Applied Electromagnetics:

Why Electromagnetics?

• As devices get smaller and smaller, and frequencies get higher and higher, circuit theory is less able to adequately describe the performance or to predict the operation of circuits.

• At very high frequencies, transmission line and guided wave theory must be used - high speed electronics, micro/nano electronics, integrated circuits.

• Other applications of Electromagnetics -

Fiber OpticsMicrowave Communication SystemsAntennas and wave propagationOptical ComputingElectromagnetic Interference, Electromagnetic CompatibilityBiology and Medicine/Medical Imaging

Electrical Engineering is Applied Electromagnetics

Why Electromagnetics?

• As use of the electromagnetic frequency spectrum increases, the demand for engineers who have practical working knowledge in the area of electromagnetics continues to grow.

• Electromagnetic engineers design high frequency or optoelectronic circuits, antennas and waveguides; design electrical circuits that will function properly in the presence of external interference while not interfering with other equipment.

• The electromagnetics technical specialty prepares future engineers for employment in industry in the areas of radar, antennas, fiber optics, high frequency circuits, electromagnetic compatibility and microwave communication.

Faculty

* Dave Atkinson

* Jeff Young

* Dennis Sullivan

Others include Fred Barlow, Aicha Elshabini,

Dave Egolf, and Rick Wells

Examples of Electromagnetics

Classes in Electromagnetics

ECE330 Electromagnetic Theory (3 cr) Vector Math, Charge and current, fieldsas forces, work, potential, and electromotive force, Faraday’s Law, Gauss’s and Ampere’s Law, Material Modeling, Waves.Prereq: Math 275, 310, and Phys 212. Coreq: ECE331Semesters: Fall, Spring

ECE331 Electromagnetics Laboratory (1 cr) Lab experiments and computersimulations. One 3-hr lab per week.Prereq: Math 275, 310, and Phys 212. Coreq: ECE330Semesters: Fall, Spring

Classes in Electromagnetics

ECE430 Microwave Millimeter Wave Circuits (3 cr) Telegrapher’s and wave equations; characteristic impedance, wave velocity and wave number; physical transmission lines, including coax, microstrip and stripline; circuit analysis techniques, reflection coefficient and power flow, impedance analysis, impedance matching techniques and Smith Chart; S-parameters, Wilkinson power dividers, circulators and hybrid couplers; transformers and filtersPrereq: ECE330Semesters: Fall, 2009; Spring, 2011

ECE432 Applications of Electromagnetic Theory Maxwell’s equations; Poynting’svector and Poynting’s Theorem; Wave equation with solutions (vector and scalar, homogeneous and inhomogeneous), Helmholtz equation; plane waves, reflection and refraction; introduction to classical electrodynamics, radiation from accelerated charges, introduction to antenna theory, transmission lines, waveguides and fiber optics, etc. Prereq: ECE330Semesters: Fall, 2008; Spring, 2010

Classes in Electromagnetics

ECE433 Antenna Theory (3 cr) Maxwell’s Equations, Potential Theory,Poynting Theorem, EM Radiation and the Far-Field, Reciprocity, Pattern, Gain, Directivity, Efficiency, Beamwidth, Bandwidth, Side-Lobe Level,Line Sources, Lineal Phased Arrays, Antenna Structures: Dipoles, Loops, Helix, Horns, PatchesPrereq: ECE330Semesters: Spring, 2009; Spring, 2011

Classes in Electromagnetics

ECE530 Advanced Electromagnetic Theory (3 cr) Maxwell’s equations, potentialtheory, wave propagation and scattering, canonical problems, guided wave theory, antenna concepts, boundary value problems. Prereq: ECE432Semester: Fall

ECE533 Antenna Theory (3 cr) Maxwell’s equations, reciprocity, equivalence theorems, wire antennas, antenna arrays, aperture antennas, analysis and design techniques, hardware considerations. Prereq: ECE432Semester: Spring

Classes in Electromagnetics

ECE536 Wave Propagation and Scattering (3 cr)

ECE538 Electromagnetic Simulation (3 cr)

ECE539 Advanced Topics in Electromagnetics (3 cr) Prereq: ECE530