1. S. Mandayam/ EEMAG-1/ECE Dept./Rowan University Engineering Electromagnetics 1 0909.301.01 Fall 2004 Shreekanth Mandayam ECE Department Rowan University http://engineering.rowan.edu/~shreek/fall04/eemag1/ Lecture 1a September 7, 2004

2. S. Mandayam/ EEMAG-1/ECE Dept./Rowan UniversityPlan 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. S. Mandayam/ EEMAG-1/ECE Dept./Rowan University “World Views” “Reality” “Model” observations predictions design scientist engineer

4. S. Mandayam/ EEMAG-1/ECE Dept./Rowan University The ECE Model Energy/Info Source Energy/Info Source Energy/Info Sink Energy/Info Sink System “H”

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

6. S. Mandayam/ EEMAG-1/ECE Dept./Rowan University EEMAG Applications

7. S. Mandayam/ EEMAG-1/ECE Dept./Rowan University 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. S. Mandayam/ EEMAG-1/ECE Dept./Rowan University EEMAG: Topics EEMAG-1 EEMAG-2 Electrostatics Magnetostatics Quasistatics TX Lines Waves f = 0 f = “low”

9. S. Mandayam/ EEMAG-1/ECE Dept./Rowan University 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. S. Mandayam/ EEMAG-1/ECE Dept./Rowan University EEMAG-1: Details

11. S. Mandayam/ EEMAG-1/ECE Dept./Rowan University EEMAG-1: Course Logistics http://engineering.rowan.edu/~shreek/fall04/eemag1/

12. S. Mandayam/ EEMAG-1/ECE Dept./Rowan University Something to think about: Fundamental Limits Energy Information System Maxwell’s Equations Nyquist Stability Criterion Shannon’s Theorem

13. S. Mandayam/ EEMAG-1/ECE Dept./Rowan University EEMAG-1: Topics Today

14. S. Mandayam/ EEMAG-1/ECE Dept./Rowan University Scalars & Vectors

15. S. Mandayam/ EEMAG-1/ECE Dept./Rowan University Scalars & Vectors DEMO: timevarscal DEMO: timevarvec timevarvec1 DEMO: spacvar Field http://engineering.rowan.edu/~shreek/fall04/eemag1/tutorial.html

16. S. Mandayam/ EEMAG-1/ECE Dept./Rowan University Scalars & Vectors DEMO: spactimscal DEMO: spactimvec Fields http://engineering.rowan.edu/~shreek/fall04/eemag1/tutorial.html

17. S. Mandayam/ EEMAG-1/ECE Dept./Rowan UniversityFields 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. S. Mandayam/ EEMAG-1/ECE Dept./Rowan UniversitySummary