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Engineering Electromagnetics 1 0909.301.01 Fall 2004

Engineering Electromagnetics 1 0909.301.01 Fall 2004. Lecture 1a September 7, 2004. Shreekanth Mandayam ECE Department Rowan University http://engineering.rowan.edu/~shreek/fall04/eemag1/. Plan. Why are we studying electromagnetics? Applications What are we studying in this course?

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Engineering Electromagnetics 1 0909.301.01 Fall 2004

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  1. Engineering Electromagnetics 10909.301.01Fall 2004 Lecture 1aSeptember 7, 2004 Shreekanth Mandayam ECE Department Rowan University http://engineering.rowan.edu/~shreek/fall04/eemag1/

  2. Plan • Why are we studying electromagnetics? • Applications • What are we studying in this course? • Objectives • How are we organizing this course? • Logistics • Something to think about - Fundamental Limits • Review of scalars and vectors • Constant • Time-varying • Space-varying • Time- and space-varying

  3. “Reality” “Model” “World Views” design observations predictions scientist engineer

  4. Energy/Info Sink Energy/Info Source System “H” The ECE Model

  5. ECE Models Information System Energy Model 3: Field Theory Model 1: Circuit Theory Model 2: TX Line Theory DSP, ECOMMS Spring’05 CONTROLS Fall ’04 NETWORKS Fall ’03 Spring ’04 EEMAG-2 Fall ’04 EEMAG-1&2 Fall ’04 S/W H/W

  6. EEMAG Applications

  7. EEMAG: What are we studying? Engineering Electromagnetics • Measures of electromagnetic energy • Capacities for energy storage and transmission • Design of electromagnetic systems • Models of electromagnetic systems

  8. EEMAG: Topics EEMAG-2 EEMAG-1 TX Lines Electrostatics f = 0 Waves Magnetostatics f = 0 Quasistatics f = “low”

  9. EEMAG-1: Course Objectives • Given a contemporary stastic/quasistatic electromagnetic device/system, the student should be able to – • Write down the Maxwell’s equations that describe this device/system • Solve these equations for simple geometries using analytical techniques • Solve these equations for complex geometries using MATLAB

  10. EEMAG-1: Details

  11. EEMAG-1: Course Logistics http://engineering.rowan.edu/~shreek/fall04/eemag1/

  12. Something to think about: Fundamental Limits Information System Energy Shannon’s Theorem Nyquist Stability Criterion Maxwell’s Equations

  13. EEMAG-1: Topics Today

  14. Scalars & Vectors

  15. Scalars & Vectors DEMO:timevarvec timevarvec1 DEMO:timevarscal Field DEMO:spacvar DEMO:spacvar Field http://engineering.rowan.edu/~shreek/fall04/eemag1/tutorial.html

  16. Scalars & Vectors Fields DEMO:spactimvec DEMO:spactimscal http://engineering.rowan.edu/~shreek/fall04/eemag1/tutorial.html

  17. Fields • Field: A space (and time) varying quantity • Static field: space varying only • Time varying field: space and time varying • Scalar field: Magnitude varies in space (and time) • Vector field: Magnitude & direction varies in space (and time) Moving Fields…... Electromagnetic waves

  18. Summary

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