Transcript Electromagnetics - University of Idaho

Electromagnetic Engineering
ECE292 Sophomore Seminar
18 March 2008
What is Electromagnetics?
The study and application of electric and magnetic fields
Electrical Engineering is Applied 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
Why Electromagnetics?
Electrical Engineering is Applied 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 Optics
Microwave Communication Systems
Antennas and wave propagation
Optical Computing
Electromagnetic Interference, Electromagnetic Compatibility
Biology and Medicine/Medical Imaging
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, fields
as 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: ECE331
Semesters: Fall, Spring
ECE331 Electromagnetics Laboratory (1 cr) Lab experiments and computer
simulations. One 3-hr lab per week.
Prereq: Math 275, 310, and Phys 212. Coreq: ECE330
Semesters: 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 filters
Prereq: ECE330
Semesters: Fall, 2009; Spring, 2011
ECE432 Applications of Electromagnetic Theory Maxwell’s equations; Poynting’s
vector 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: ECE330
Semesters: 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, Patches
Prereq: ECE330
Semesters: Spring, 2009; Spring, 2011
Classes in Electromagnetics
ECE530 Advanced Electromagnetic Theory (3 cr) Maxwell’s equations, potential
theory, wave propagation and scattering, canonical problems, guided wave theory,
antenna concepts, boundary value problems.
Prereq: ECE432
Semester: 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: ECE432
Semester: 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