ECEN 3400

Electromagnetic Fields and Waves

Fall 2015: 3:00-3:50 M W F, Fleming 157

Fall 2015

Page last updated 16 December 2015

Latest Announcements

16 December 2015: An abbreviated review session will be held from 9:30 to about 10:30 or 11:00 AM on Wednesday December 16 in room ECEE 1B32 to replace the one scheduled for yesterday that was canceled due to closure of campus.. Any and all questions will be entertained, we can go over examples, problems from the sample exams.

16 December 2015: Here is the grading curve for the homework.
Assignments and other dated items on this page are generally correct for about one week from today. Items more than one week in the future and undated material are subject to change without notice. Any deviations from this policy will be listed as announcements to the left or below. Please check this page regularly for updates.

Instructor: Prof. Edward F. Kuester

Office Phone

Email

Office

Office Hours

(303) 492-5173

kuester@schof.colorado.edu

ECOT 248

Tu F 9:00-10:00 in my office, W 4:00-5:00 and Th 3:30-4:30 in ECEE 254, or by appointment

Grader: Abdulaziz Haddab

Email

Room

Office Hour

haddab@Colorado.EDU

ECEE 254

M 4:00-5:00

Main Headings on this Page

Course Information     Course Calendar    Lecture and Reading Schedule    Exam Dates   Old Announcements

Supplementary Textbook (Popović, and B. Popović)
Introductory Electromagnetics: Practice, Problems and Labs 
(Rev. 04-12-2012)
Additional (EK) Homework Problems
(Rev. 12-04-2015)

Notes on Computer-Aided Tomography (CAT)     Sample Exams     Free Technical Software

Course Information

General

In this course, you will be introduced to the behavior of electromagnetic fields, and will see some of the ways in which they are used in electrical engineering. The text is Electromagnetics, by B. Notaroš. A scanned copy of the supplementary text, Introductory Electromagnetics, by Z. Popović, and B. Popović is freely available in PDF format for download (be sure to check the errata file for a list of all known corrections to the text). To read PDF (Adobe's Portable Document Format) files, you can either use Ghostscript, Adobe's free Acrobat Reader or any number of other suitable programs. The additional volume Introductory Electromagnetics: Practice, Problems and Labs by Z. Popović, and B. Popović contains full or partial solutions to some of the problems, and may also be downloaded. This file has incorporated all known corrections up to the present time. If new corrections are found, I will update my files; the date of the latest revision is given at the beginning of each file.

If you are curious to learn more about electromagnetism, or to see the viewpoints of different textbooks, I have also put the following books on reserve at the Engineering Library:

Additionally, the following Internet resources may be of interest:

CU Engineering Fellows (fellows.colorado.edu) may offer review and study sessions for this course if interest is expressed.

Grades

Your grade for the course will be determined as follows (the value of your weakest hour or final exam will be reduced by 5%):

Homework

25%

2 Hour Exams

25% each

Final Exam

30%

Each component of your grade will be assigned a grade (A, A-, B+, B, B-, etc.) based on a curve for that particular component. Different components (e. g., Homework and Hour Exam #1) will generally be curved differently. The grade is converted to a grade point between 0 and 4 (A = 4.0, B = 3.0, etc.), and it is these grade point values which are weighted according to the table above.

As an example, suppose you got a B (3.0) on the homework, a D (1.0) on the first hour exam, a C (2.0) on the second hour exam and a C (2.0) on the final exam. Your course grade is then:

(3.0)×0.25 + (1.0)×[0.25 - 0.05] + (2.0)×0.25 + (2.0)×0.3 = 2.05

which is a C.

Grading curve for Hour Exam 1:

92-100
88-91
84-87
80-83
77-79
74-76
71-73
68-70
65-67
61-64
58-60
0-57
A (4.0)
A- (3.7)
B+ (3.3)
B (3.0)
B- (2.7)
C+ (2.3)
C (2.0)
C- (1.7)
D+ (1.3)
D (1.0)
D- (0.7)
F (0)

Grading curve for Hour Exam 2:

92-100
88-91
84-87
80-83
77-79
72-76
69-71
66-68
63-65
59-62
56-58
0-55
A (4.0)
A- (3.7)
B+ (3.3)
B (3.0)
B- (2.7)
C+ (2.3)
C (2.0)
C- (1.7)
D+ (1.3)
D (1.0)
D- (0.7)
F (0)

Grading curve for Homework (590 points possible)

529-590
508-528
481-507
464-480
449-463
431-448
413-430
395-412
376-394
355-375
336-354
0-335
A (4.0)
A- (3.7)
B+ (3.3)
B (3.0)
B- (2.7)
C+ (2.3)
C (2.0)
C- (1.7)
D+ (1.3)
D (1.0)
D- (0.7)
F (0)

I expect that you will abide by all University expectations of academic integrity. Please read the information on this, as well as on disabilities, religious observances and standards of behavior.

Class preparation

You should read the assigned sections of the book prior to each lecture. I will always be glad to help you with any questions you may have during our office hours since there will not always be time for long answers during the lectures. Please feel free to come in for help. I hope the office hours will be such that everyone in the course can make use of at least some of them. In any case, you can also make an appointment to see me at other times. If you don't understand something, I'll never know until you ask or until you fail an exam. Why not ask?

Homework

Homework assignments are due every Friday in the lecture period unless indicated to the contrary on the calendar below. Please put your student number next to your name on your homework and exams (anything you turn in to be graded). It helps to resolve ambiguities when there is difficulty reading your handwriting. Late homework is not accepted. You can turn homework in early by putting them in my mailbox in the ECEE office (make sure to put them in the slot below my name). If you have questions about the grading of your homework, please contact the grader (see the top of the page) by email or during his office hour to resolve your question. Only if the issue cannot be resolved between you and the grader should you bring the question to me.

"EK" Homeworks

Problems marked "EK" in the homework assignments come from a collection of my own problems, which may be downloaded in PDF format. All "EK" problems will be kept in one file, which will be updated when necessary as the semester progresses. The date of the last update will be placed at the beginning of the file for reference.

Software

Occasionally you may need to compute or plot something which is a little more complex than a handheld calculator is convenient for. In such a case, you may use any appropriate software, so long as your results are clear. Matlab, Mathematica and MathCad are all fine for this purpose; even Excel works well. Several freeware programs are listed below which can be used if you don't want to pay for software specifically for this course.

Exams

There will be two in-class (50 minute) hour exams. The exams are closed-book and closed-notes, but you may bring one (for the hour exams) or two (for the final exam) 8-˝" by 11" sheet(s) of notes and a calculator. The schedule of exams is listed in the calendar. Currently planned dates are October 9 and November 13, 2015, but these are subject to minor changes if circumstances warrant. The final exam (2-˝ hours long) will be held on Wednesday, December 16, 2015 from 1:30 to 4:00 PM in room Fleming 157. The final exam will be cumulative, but with emphasis on the final third of the course. Thus, half of the questions on the final exam will be on chapters 1-7 of the text, and the other half will be on the material from chapters 8-12.

If you have 3 or 4 final exams on Wednesday, December 16, you need to see the instructor(s) of the course(s) that have their final exams in the third (and possibly fourth) time slots of that day in a timely manner, to make arrangements to take those exams on a different day in accordance with University rules. The official deadline for doing so is Friday, October 30, 2015.

Sample Exams

Samples of my hour exams from recent years are posted below. Note that these were written for use with the book by Popović and Popović, so the notations may differ from those used in the present text by Notaroš. Note also that not all the problems in the second hour exam will pertain to what is in sample exams 2-1 and 2-2.

Sample Exam 1-1 Sample Exam 1-2  Sample Exam 2-1 Sample Exam 2-2


Sample Final Exam 1 Sample Final Exam 2

Syllabus and Schedules

The calendar below gives a day by day list of lecture topics, reading and homework assignments. I will not announce these separately in class; it is your responsibility to check this page for all assignments, and to be prepared appropriately.

Calendar

Refer to lecture and reading assignment schedule for lecture topics and homework assignments. HW = Homework due that day.
Problems numbered x.x are taken from the text (Notaroš); problems numbered Px.x are taken from the supplementary text (
Popović and Popović).
Problems numbered EKx.x are from the supplemental homework problems provided in PDF format.
Homework assignments will not be changed when there is less than one week until they are due; otherwise they may be changed as needed. If you like to do homework well ahead of time, be warned of this and check before turning in your assignment that you have done the correct problems.

August

24
Lecture 1



26
Lecture 2



28
Lecture 3

HW: 1.2, EK1.3

31
Lecture 4





September



2
Lecture 5



4
Lecture 6

HW: 1.10, 1.13, 1.22, EK3.5

7
NO CLASSES

(Labor Day holiday)


9
Lecture 7


11
Lecture 8

HW: 1.34, EK4.9, EK4.7

14
Lecture 9


16
Lecture 10


18
Lecture 11

HW: 1.62, 1.76, 1.77, EK5.2, EK5.3

21
Lecture 12


23
Lecture 13


25
Lecture 14

HW: 1.87, 1.88, 2.1, EK6.1, EK6.3

28
Lecture 15



30
Lecture 16




October





2
Lecture 17

HW: 2.5, 2.15, 2.28, EK7.2, EK7.4
5
Lecture 18



7
Lecture 19

HW: 2.50, 2.62


9
Hour Exam #1

Covers material through Lecture 15

12
Lecture 20


14
Lecture 21


16
Lecture 22

HW: 3.7, 3.10, 3.19, 3.23, 3.26

19
Lecture 23



21
Lecture 24



23
Lecture 25

HW: 4.1, 4.6, 4.10, EK12.1, EK12.4

26
Lecture 26


28
Lecture 27


30
Lecture 28

HW: 5.6, 5.12, EK13.1, EK13.2

November

2
Lecture 29



4
Lecture 30


6
Lecture 31

HW: 6.13, 6.16, 6.23(a), EK14.1

9
Lecture 32


11
Lecture 33

HW: 7.2, 7.12, EK15.3


13
Hour Exam #2

Covers material through Lecture 25

16
Lecture 34



18
Lecture 35



20
Lecture 36

HW: 8.6, 8.11, 9.4(a,b), 9.9, 9.13

23

NO CLASSES


(FALL BREAK)
24

NO CLASSES


(FALL BREAK)
25

NO CLASSES


(FALL BREAK)
26

NO CLASSES


(Thanksgiving holiday)
27

NO CLASSES


(Thanksgiving holiday)
30
Lecture 37





December




2
Lecture 38




4
Lecture 39

HW: 9.16, 9.26, 9.27, EK20.2

7
Lecture 40




9
Lecture 41

HW: 12.1, EK18.11, EK18.12



11
Lecture 42

LAST DAY OF CLASSES


16

Final Exam               1:30 - 4:00 PM             Room FLMG 157




Lecture and Reading Schedule

Lecture No.

Topic

Reading Assignment [from text (BN) or Supplementary Textbook (PP)]

1

Introduction; Fields vs. Classical Circuits

NONE

2

Coulomb's and Ampere's Force Laws

BN, sections 1.1 and 4.1; PP, Chapters 1 and 2

3

Electric Fields

BN, sections 1.2-1.4; PP, sects. 3.1-3.3

4

Computing E fields from charge distributions

BN, section 1.5

5

Field lines; The electrostatic potential

BN, sections 1.6-1.8

6

E from the potential

BN, sections 1.9-1.10

7

More examples on potential; Introduction to Gauss' Law

BN, section 1.12

8

Using Gauss' Law

BN section 1.13

9

Gauss' Law Examples; Conductors

BN sections 1.16-1.17; PP section 6.2

10

Conductors in Electrostatic Field; Electrostatic Shielding

BN section 1.18

11

Electrostatic Images

BN section 1.21

12

Dielectrics

BN sections 1.11, 2.1-2.2 and 2.17

13

Polarization

BN sections 2.3-2.4

14

Generalized Gauss' law; Boundary conditions

BN sections 2.5-2.9

15

Capacitance, Electrostatic Coupling

BN sections 2.12-2.14

16

Electrostatic Energy

BN section 2.15-2.16

17

Steady Current in Conductors

BN sections 3.1-3.4

18

Resistors and Electrodes

BN sections 3.5-3.6, 3.8, 3.11 and 3.13

19

The Magnetic Field; Biot-Savart Law

BN sections 4.2-4.3

20

Ampere's Law BN section 4.4

21

More Ampere's Law; Gauss's Law for B BN sections 4.5 and 4.8

22

Magnetization and Ampere's Law BN sections 5.1 and 5.3-5.4

23

Magnetic Material Properties BN sections 4.11, 5.2 and 5.5

24

Electromagnetic Induction; Faraday's Law BN sections 6.1-6.7; PP, section 14.2

25

Mutual and Self Inductance BN sections 7.1-7.3

26

Magnetic Field Energy; Magnetic Applications

BN sections 7.4-7.5
27 Displacement Current; Integral and Differential Forms of Maxwell's Equations BN sections 8.1-8.4
28 Time-Harmonic (Phasor) Form of Maxwell's Equations BN sections 8.6-8.8
29 Linearly Polarized Plane Waves BN sections 9.1-9.4
30 Skin Effect BN sections 9.10-9.11; PP, chapter 20
31 Poynting's theorem BN sections 8.11-8.12
32 Introduction to Transmission Lines; Waves on a Uniform TL BN sections 12.1-12.3

33

Reflection of Waves on a TL

BN sections 12.4-12.5

34

Reflection of Plane Waves (Normal Incidence) BN sections 10.1-10.2

35

Impedance of Loaded TLs BN section 12.6
36 TL Examples and VSWR
none

37

More TLs

BN sections 12.13-12.14

38

More TLs

none

39

More TLs

none

40

More TLs

none

41

More TLs

none
42
EM Wave Applications PP sections 25.2 and 25.3 and Notes on Computer-Aided Tomography (CAT)


Some Free Programs of Interest

QuickField 

A "student version" of a program which can numerically solve (among other things) electrostatic and magnetostatic field problems. This version is limited as to problem size, but is free.

FEMM - Finite Element Method Magnetics

Freeware. From the reference manual: "FEMM is a suite of programs for solving low frequency electromagnetic problems on two-dimensional planar and axisymmetric domains. The program currently addresses linear/nonlinear magnetostatic problems, linear/nonlinear time harmonic magnetic problems, and linear electrostatic problems." FEMM is a Windows program, useful for getting numerical solutions of fields and parameters such as inductance and capacitance, among many possible applications.

XLPlot

Windows Freeware. From the website: "Create your graphs for scientific publication with XL-Plot. It reads ascii files and it outputs a vector drawing. XL-Plot is for Windows 95,98, 2000 and XP. The primary purpose of XL-Plot is to create a figure for scientific publication rapidly. It contains a few basic statistical functions, such as Students t-test and linear correlation of two sets of data (two columns in a spreadsheet). XL-Plot has a number of built-in functions that can be fitted to the data in columns on a spreadsheet or to a curve in a graph. The user can easily add fitting functions of his own design.Additional options are Fourier Transformation, (de-)convolution and Matrix inversion." It is a modest piece of software that does a surprising number of tasks well.

Winplot

Another freeware plotting program for Windows, concentrating on the display of functions. This one can do 3D (surface) plots. It has some animation capabilities as well.

Euler

A freeware numerical mathematics program similar in many ways to Matlab. It is available for Windows, Linux, Unix and OS/2 (this latter is no longer maintained). May be worth a look, though I haven't really used it myself.

Scilab

A free mathematical software package for various Unix flavors and for Windows, somewhat more advanced in capabilities than Euler. It aims to do many of the same things as Matlab. From its website: "Scilab is a scientific software package for numerical computations in a user-friendly environment. It features:

Old Announcements

17 August 2015: Welcome to ECEN 3400. This website will contain all the information you need for the course. Check often for updates.

10 September 2015: My office hours on Wednesday September 16 and Wednesday September 23 will be held starting a little after 5:00 PM, due to other commitments I have at 4:00 on those days. Please plan your schedules accordingly.

18 September 2015: Due to the popularity of my Wednesday and Thursday office hours, starting next week I will be holding them in room ECEE 254. Please stay in this small classroom and do not enter room ECEE 254A, so as to avoid disturbing the students in the lab.

28 September 2015: Sample exams from previous years have been posted below, for use as study aids for the upcoming first hour exam.

30 September 2015: A typographical error was found in problem EK7.4. Please check the updated file for the corrected version.

1 October 2015: In preparation for the first hour Exam on October 9, I will extend my office hours on Wednesday October 7 and Thursday October 8 by about 45 minutes each, and they will both be used as review sessions where we can work through examples, sample exam problems, other problems from the texts or EK problems. This will be free-form---I will not be preparing anything, but will go with your requests.


9 October 2015: Here are the solutions to Hour Exam 1.

16 October 2015: Here is the grading curve for Hour Exam 1.


6 November 2015: In preparation for the second hour exam on November 13, I will extend my office hours on Wednesday November 11 and Thursday November 12 by about 30 minutes each, and they will both be used as review sessions where we can work through examples, sample exam problems, other problems from the texts or EK problems. As with the sessions prior to the last exam, this will be free-form---I will not be preparing anything, but will go with your requests.

18 November 2015:
I made errors in my solutions to problems 1 and 4 of Hour Exam 2 that were posted before. Here are the corrected solutions to Hour Exam 2.


23 November 2015: Here is the grading curve for Hour Exam 2.

8 December 2015: I will hold a review session from 1:00-3:00 PM on Tuesday December 15 in room ECEE 1B32 in preparation for the final exam. Any and all questions will be entertained, we can go over examples, problems from the sample exams, and/or I can present the important topics that might be addressed on the exam.