ECE 3300 Introduction to Electromagnetics

Lecture Notes, Portfolio Questions, Homework 2011

 


This schedule may be adjusted throughout the semester. Watch the web for changes. If you find broken links, please email cfurse@ece.utah.edu .

 

Review material:

Matlab

Complex Numbers

           

1 Phasors

Power Point

2 Complex Numbers

 

Node and Loop Equations

Decibels

The Right Hand Rule

Line, Surface, Volume Integrals (see multivariate calculus section)  << This professor has LOTS of useful math videos!

            Here is his YouTube page.  Search on ‘double’ or ‘triple’ to see useful integral examples in rectangular, cylindrical and spherical coordinates.

 

Mathematics Online Review Help:

            Free Math Videos for the World

            Khan Academy  (YouTube Channel)

 

EM Online Resources:

You Tube Helps (How to find the videos, How to Download to IPOD)

More cool online lectures  (click on ECE 320 for the EM class)

Podcasts by Daniel Fleisch

 

 

  #

Date

August

September

October

November

December

 

Textbook section is listed below each date

Lecture Notes

For Faculty:

How and why I make the video lectures

 

More info HERE

Handouts and Other Helpful Stuff

j0234687

j0305257

j0301252

Cool Stuff to THINK about

Help on the Laboratories

Help on the Exams

Extra Credit

Portfolio Questions and Homework.

Due Monday of each week by 5pm in the homework lockers across the hall from the ECE office.  Work assigned Monday is due the following Monday.  If we don’t have class on Monday, turn it in on Wed.

HW will be returned in the student mailboxes across and down the hall from the ECE office.

  1

Aug. 22

Ch. 1-2

Why EM?

Review the Syllabus.

Read Why Study EM (lots of applications of EM)  OR Essential Principles of Signal Integrity (EM applied to digital and circuits)

 

EM Links

IF you missed class. Please fill out homework return permission sheet. You can find it on www.ece.utah.edu (Undergrad-Forms). Turn it in to the ECE office. You need to do this again EACH YEAR.

If you are a transfer student new-to-the-U, Welcome! Please make an appointment with Arlene to review your transfer classes.

Are you having trouble getting signed up for a class or lab?  Debbie in the ECE office (MEB 3280) has a waiting list.  debbie.colgan@utah.edu 801 581 6941

Is a College Education WORTH IT?

Portfolio/HW 1: EM Applications

Bring this assignment TO CLASS next time (don’t turn this one in to the locker). Prize given for largest # of applications. J

When is this due? 5pm on the Monday following this class.  Homework Due Aug. 29

Where do I turn it in? Homework lockers at top of stairs near ECE office MEB 3280.

j0301252 Extra Credit!

Extra credit points can be used to bring homework and lab scores up to a maximum of 100%.

Look for this symbol throughout the semester for extra credit lectures and activities.  You can always get extra credit for finding my mistakes!  If you are the first person to find an error (a technical error, not just a little typo) in the videos, the closed captioning, the text, my lecture notes, the labs, or my exam keys, I will give you 5 points extra credit (that’s half a day’s homework) for reporting that error.  I will also give you 5 points extra credit if you point out something confusing in the lab write-ups and rewrite it in a more clear fashion. 

 

Maximum ‘mistake points’ per student is 40.

j0234687Just something cool… here is one of my great old students who is modifying an old Toyota truck to be an electric vehicle.  Go, John, Go!

  2

Aug.24

Ch. 1-3,6,7 (may also need your physics book)

EM Basics (Review)

Video Lectures #2:

1 – E fields

Power point file

 

Mp4 files

2- Superposition

3 - Permittivity

4-  Electric flux density

5 – Magnetic fields

6 – Static and Dynamic

 

Notes from In Class

 

 

 Conversion Factors

The Right Hand Rule

 

(When you see this little icon, it means I think there is something cool here that will make you think!)

 

j0234687Application:

How are E and H fields measured?

UU Man model

 

How STRONG is STRONG?

 

OK, that part about ‘no magnetic charges’?  Check this out…

 

Interested in finding a research position on campus?  Check out My University research Experience MURE.

Portfolio 2: What are electric and magnetic fields, and what causes them? (What are the sources?) What are their units, and the units on all related constants?

HW 2: Basic EM

HW2 solutions

What do I turn in next Monday? Answer the portfolio questions 1-2 in words and equations (approx half to 1 page each). This should be like a mini textbook section, written in your own words, that you can later use on the exam. Turn in the portfolio question, along with HW 1,2

 

When is this due? 5pm on the Monday following this class (Aug 29).

 

Where do I turn it in? Homework lockers at top of stairs near ECE office MEB 3280.

Aug 26

Dr. Furse out of town

Special Lecture Today

j0234687

Dr.Rock Hadley, RF Engineer, Utah Center for Advanced Medical Imaging – Building specialized MRI coils for the eye and neck.

Note:  Homework Solutions

 

Are now linked on the left bar of this website.  The solutions also include the problems, for easy access.

  3

Aug. 29

Ch 1-4

Traveling waves

Video Lectures #3:

1 – Types of Waves

Power Point

Mp4 files

2 – Sine Waves

3 - Attenuation

 Software Demo: Wave propagation

Video of Velocity of Propagation (how fast is the crest of the wave moving?)

Review: Complex Numbers and Phasors

 

Be sure you know how to use your calculator for complex # operations.

 

1 Phasors

Power Point

2 Complex Numbers

 

 

 Portfolio Question 3: How is a traveling wave described mathematically?Understand all of the variables in chapter 1-3.

HW 3: Text Problems 1.1,2,6,7,8

It’s Monday!  Turn in Portfolios and Homework from last week (HW1 and 2) today by 5pm in the homework lockers near the ECE office.

Portfolio/HW3 will be due next Monday.

 

MONDAY – Remember you have a prelab due at the start of EACH lab.  Please see the lab website for details.

  4

Aug. 31

Ch.2-1,2

Transmission Lines

Video Lectures #4:

1 - Introduction

Power Point

Mp4 files

2 – Is it a TL?

3 – TL Effects

4 –RLGC Model

5 – RLGC 2

 

ERROR IN THE TEXT (p.52)!

When calculating RLGC for coaxial lines, you use the radii of the inner (a) and outer (b) conductors.  This is drawn correctly on figure 2-7, but is described incorrectly in the words.

j0234687 Transmission Lines

Transmission Line Song

j0305257The RLGC equations for coax will be used in Lab 2.  Write a matlab  program for them.  You can use the same program you write for your homework.

Portfolio Question 4: What is a transmission line? What is the lumped element model, and how are the RLGC parameters related to the physical parameters of the transmission line?

HW 4: Text Problems 2.1,6

Write a matlab code to solve Problem 2.6.  You will use this in Lab 2. 

THURSDAY AFTERNOON LAB cancelled this week.  It will be held next week instead.

  5

Sept. 2

Ch. 2-3,4

TL Eqns, Wave Eqn. (NOTE: some material in these notes is not in the text)

Review:  Node and Loop Equations

Video Lectures #5:

1 – Loop Equations

Power point

Mp4 files

2 – Node Equations

3 – Review of Derivative

4 – Time Domain

5 – Freq Domain

6 – Propagation Constant

7 – Waves

8 – More Waves

9 – Impedance

10 – More Zo

j0305257The Zo, alpha, beta, wavelength equations for coax will be used in Lab 2.  Write a matlab program for them.  You can use the same program you write for your homework today.

 

 

 

 

 

 

j0234687Why 50 ohms?  (Engineering Tradeoff makes history!)

 

 

 

 

Check out this cool resource:  Microwaves 101

 

Portfolio Question 5: Understand the telegraphers equations, wave equations, and impedance. What does it mean to have a 50-ohm transmission line?

HW 5: Text Problems 2.3,8

Write a matlab code to solve Problem 2.8.  You will use this in Lab 2.

 

  

Sept 2

j0301252Extra Credit Lecture

Fire and Ice – Electrical Engineers in Antarctica

Dr. Furse

Graduate Seminar 2:45- 4, WEB 1250

Write down 2 interesting things about this lecture.  Get my signature or any other professor.  Turn in to the homework locker.

10 points extra credit (= 1 days’ homework + portfolio)

Sept 5

No Class! Labor Day

Do you ever wonder why you might learn differently than others in your class?  Learning Styles

  6

Sept.7

Ch. 2-5,6

Lossless TL, Standing Waves (NOTE: Some material in these notes is not in the text.)

Video Lecture #6:

1 –lossless transmission lines

Power Point

Mp4 files

2 - reflections

3 – reflection coefficient

Videos of standing waves

Demo

Open   Short   Matched   RefCoef=1/3

‘Standing Wave Envelope’

Tacoma Narrows Bridge

4-Standing Wave

5-lmax lmin

6-more on lmax lmin

I know I got cut off.  Don’t worry.  We will talk about Slotted Lines in class.

  An Example Exam Question on Standing Waves

 

 

j0234687Once upon a time in a coaxial line far, far away

Picture of a Slotted Line  

 

Want to see other standing waves?  Just search YouTube for ‘standing waves’.

A Russian bridge

 

Thank you to James Nagel for the videos in today’s lecture!

Portfolio Question 6: What is a standing wave, and how is it produced? Understand what is plotted in Figs 2-14 and 2-15.  Also understand the ‘envelope of the standing wave’ plotted in the notes.

HW 6:  Text Problem 2.19,21,22

 

If you missed the THURSDAY AFTERNOON LAB (or any other lab) last week, remember it will be held tomorrow instead.

  7

Sept.9

Ch. 2-7

Input Impedance

Video Lecture #7:

1 - Impedances

Power Point

Mp4 files

2 – Input Impedance

3 – Input Impedance

4 – Input Impedance

5 – Example Problem

 

 

 

Self Test and Review of Equations

j0234687 Application:

Frequency Domain Reflectometry (FDR)

Journal Article

 

Think you might be interested in a CAREER in patent law?  (ECE is a great pre-law degree.)  Here are the FDR patents: Patent1   Patent2

 

 

Portfolio Question 7: What is input impedance, and how do you compute it?

HW 7: Text problems

2.28,31,33

ECE3300 TUTORING AVAILABLE in the Tutoring Center (across from the Dean’s Office) EVERY FRIDAY

Quinn Tate  11-2

Katie Furse 12-2

  8

Sept. 12

Ch. 2-8

Another reference  (This is really helpful to do the HW.)

How to create L and C from Transmission Lines

Video Lecture #8:

1 - Intro

Power Point 1

Power Point 2

Mp4 files

2 – LC from short circuited line

3 - continued

4 – Using an open circuit

5 - continued

6 – Quarter wave transformer

7 – application to power splitter

Short Circuit Demo

 Open Circuit Demo

 

j0234687 Application: 3dB Splitter

 

CRITICAL ERROR IN TEXTBOOK eqn 2.79  (the equation given in the solution to problem 2.28 is correct, the book is not)

 

TA DAVID LUBBERS will hold OFFICE HOURS to help answer questions (including homework questions) MONDAYS 3:00 - 5:00 in MEB 4142

Portfolio 8: What is a quarter wave transformer, and how do you design one? How can a short circuit look like a capacitor or an inductor?

HW 8:  Text Problems 2.37,40,and one more

Sept 13

j0301252Extra Credit

Discover Engineering is a traveling exhibit our college takes to local high schools to encourage the students to consider engineering as a career option.  It will be on display in the foyer of WEB today.  Check it out! 

 

We want to upgrade the ECE exhibit, and will be making two different exhibits, one for EE and one for CE.

Think up and write up a description of a cool Discover Engineering exhibit for EE or CE.

Turn it in to Dr. Furse, because I want to read it.

10 points extra credit (= 1 days’ homework + portfolio)

  9

Sept.14

Ch. 2-12

Transients (Step fn. Input)

Video Lecture #9:

1 – Bounce Diagrams (parameters)

Power Point

MP4 files

2 – Bounce Diagrams

3 – Bounce Diagrams (V as a fn of t)

4 – Bounce Diagrams (V at a specific time)

j0305257Bounce Diagrams

Transient Demo 

DC Bounce Demo

 

 

This lecture information is needed for Lab 2.

j0234687 See this for real, measured on a coaxial line

Application:  3D Ray Tracing

Portfolio 9: How do you find the voltage or current at any location on the line as a function of time? How do you find the voltage or current distribution at a given time as a function of distance along the line?

HW 9: Text Problems

2.75,76,78

CRITICAL ERROR IN TEXTBOOK eqn 2.79  (the equation given in the solution to problem 2.28 is correct, the book is not)

Sept 14

12-1

j0301252Extra Credit lecture

2011 Gould Lecture.  These are typically really excellent lectures.

David Fruedenthal, former Gov. of Wyoming,  ‘The Good, the Bad, and the not So Pretty – Public Policy Leaders & the Evolution of Technology’

Write down 2 things you found interesting in this lecture.  Get ANY professor to sign it.  Turn it in to the HW locker for 10 points extra credit

 10

Sept.16

Ch. 2-12

Transients (Pulsed input)

 

Video Lecture #10: 

5- Bounce Diagrams for pulses

Power Point

 

MP4 files

6 – continued

7 - continued

Example Exam problems

 

 

 

 

 

j0234687 Application: Reflectometry

Portfolio 10: How do you find the voltage or current at any location on the line as a function of time when you have a pulsed input? How do you find the voltage or current distribution at a given time as a function of distance along the line when you have a pulsed input?

HW 10:  Text Problems

2.80,81

 11

Sept. 19,21

Ch. 2-10

Note, this is TWO days lecture.

We will do lectures 1-6 first day, 6-10 second day.

Smith Charts

Handouts to go with lecture

Video Lectures #12:

1 Intro to Smith Charts

Power Point

MP4 Files

2- reflection coefficient

3 – Trans Coef

4- ZL and GL

5- Y,OC,SC

6- Zin

7- ZL

8 – S, lmin,lmax

9 – Slotted Line

10 - Summary

 

 

Smith Chart for you to use (PDF) (DOC) (2 per page)

 

TLINE Software and its Smith Chart >> Your book has a good interactive Smith Chart program on the CD.

 

Another Smith Chart Program

 

And another Smith Chart Tutorial

 

Example Exam Question 

 

j0234687Escher’s Art and the Smith Chart

 

 

EVERYTHING you ever wanted to know about the Smith Chart!

TA DAVID LUBBERS will hold OFFICE HOURS to help answer questions (including homework questions) MONDAYS 3:00 - 5:00 in MEB 4142

 

 

Portfolio 11: How do you use a Smith Chart to find: input impedance, VSWR, refl.coef., location of voltage mins,maxs, and Zin (or ZL)?

HW11:  Text Problems

2.47,49,50 and

2.53,58,61 

For more examples, see Exams (with solutions)

(Midterm I and Final)

 

Sept 20

Junior Seminar 1045-1135 WEB 102

j0301252Extra Credit Lecture

Aircraft Wiring, the Hidden Hazard – Finding Faults in Aircraft Wiring

(this is transmission line theory applied in some creative ways)

Dr. Furse

 

Write down 2 interesting things about this lecture.  Get my signature or any other professor.  Turn in to the homework locker.

10 points extra credit (= 1 days’ homework + portfolio)

 12

Sept. 23

Ch. 2-11

Impedance Matching

Handouts

Video Lecture #13:

1 - Intro

Power Point

MP4 files

2- Add Series Elements

3- continued

4- Adding Parallel Elements

5- Series,Parallel Combo, Stub Match

6-match real part

7-Stub match overview

8-Parallel stub

9-Distances

10 continued

11 - summary

 

 

Cookbook and Example

Matched Load Demo 

Quarter Wave TxFormer Demo

More Examples

Example Exam Questions

Portfolio 12: How do you design a single-stub matching network?

Homework 12: Text problems 2.63,68

Need more examples?

See Old Exams OR

Use TLine software (see Smith Chart Lecture above)

Sept 26

Review I   Topics

 

Do you ever feel like ‘the dumbest person on the planet?’  -- Check out the Imposter’s Syndrome

Old exams and study aids are on the Exam link

Sept 28

Midterm I -- Transmission Lines

(Please keep your homework that is due this week until after the exam)

13

Sept 30

Ch. 9-1,2

Dr. Furse out of town

j0305257Antennas in 50 Minutes or Less!

COME to class today, portfolio will be answered.

Antennas for NonSpecialists 

Antenna Elmer (a really good resource for all kinds of antennas)

 

j0234687What do you think?

 

     Recent media coverage on ‘do cell phones cause cancer?’

 

The iphone antenna song.  Hmm…

Portfolio 13: Define the following antenna parameters: input impedance, resonant frequency, bandwidth, radiation pattern, gain. How would you measure them?

j0305257HW: None, but do the prelab for Lab 3

  14

Oct.3

Ch 3

Also your math and physics books.

Vectors and Coordinate Systems

 (We will not have time to cover all of the vector operations in class, so please review these notes and refer to Ch3 as needed during the following sections.)

Video Lectures #14:

I have done several review sections and examples of line, surface, and volume integrals in all 3 coordinate systems.  Please listen to the ones that are highlighted before class.  The others you can leave for reference as needed later.

1Vectors and unit vector

Power Point

 

MP4 files

2 distance

3 dot product

4 cross product

5 coordinate systems

6 Rectangular

7dL  8dS  9dV

10 Cylindrical

11dL 12dS  13dV

14 Spherical

15dL 16dS 17dV

18 Summary

 Cut and Paste Vectors / Coordinate Systems

The Right Hand Rule Picture Book

 

A review of coordinate systems by Daniel Fleisch

 

(also 3D field models)

 

j0234687You can’t believe your eyes!

Cell Phones and Popcorn:

Search YouTube for ‘cell phone popcorn’ for some really great EM amusement.  I especially like this one, because of the direction of the antennas (WHICH direction does power come out of an antenna???) And after you’ve seen a few of the eye poppers, check this one out too.  And guess what?! Bananas can pop corn too!

 

.

Portfolio 14: How do you compute line, surface, and volume integrals in each coordinate system?

 

Homework #14: Text Problems 3.25ad,26,28,32,34cd,35bc

 

If you need more review, just work through more of the problems and use the solution manual to check yourself.

 

** NOTE!!! Correction … Do problem 32 not 31.

 

FAQ:  Are lab reports individual or group?  See bottom of lab website for specifics:

http://www.ece.utah.edu/~ece3300/Labs/index.htm

 

 

 

 15

Oct 5

Ch 4-3,7

Coulombs Law

I will refer to Coulomb’s Cookbook and Textbook Table 3-1.  Have them handy when you watch the videos.

Video Lecture #15:

1 E fields

Power point

 

MP4 files

2 Coulomb vs Gauss

3 Coulomb Steps

4 point charges

5 line charges

6 continued

7 surface charges

8 what integral

9 volume charges

10 cylindrical

11 continued

12 summary

Examples

More Examples

 

Example Exam Problem:  Midterm II 2005 Problem 2 (ignore the H field part)

 

 

j0234687Lineman video  Youtube

 

 

Charge Meter for lightning

 

Portfolio 15:  What is the electric field (physically)? What causes it? How do you compute the electric field from point, line, surface, or volume charge distributions?

Homework #15: Textbook Problems 4. 12,14,15

 

 

 16

Oct 7

 

Intro to FDTD (for Lab 4)

j0305257

 

 

 

 

 

 

Video Lectures:

 

1 Intro

Power Point

MP4 files

2 space derivative

3 time derivative

4 algorithm

 

 

More detailed FDTD Lectures:

These are for E,H equations instead of V,I, and done (initially) in 3D. 

See ECE6340 Lecture #14

 

Reference Material:

Nyquist Sampling Theorem (this is why dt <= dx/(2c) )

 

Another (maybe better) reference

No homework today !  (Do the prelab for Lab 4)

Oct10-14

No Class! Fall Break

  17

Oct. 17

Ch. 5-2

 

 

Curl, Biot-Savart Law

YouTube Video Lecture #16:

(Oops! The YouTube Lecture #(16) and the Actual Lecture Number (17) may not add up from here on out.  The YouTube number tells you what to watch (or just click below), and the Lecture number (17) tells you what number to turn in with your homework.  This is just a test of your ability to follow peculiar numbering systems created after my laziness in not going back and changing the titles of all the YouTube lectures.)

1 Biot Savart

Power Point

 

MP4 files

2 Steps / Line current

3 continued

4 continued

5 Surface current

6 continued

7 Volume current

8 summary

 

 

Helpful Maxwell Demo Link

The Right Hand Rule

Example

For more examples, see old Midterm IIs, and final exams.

Portfolio 17: What is the magnetic field, and what is its source? Explain how to find it using Biot-Savart's law from a line, surface, or volume current distribution. (You may find it helpful to compare this to Coulomb's law.)

 

Homework #17:  Textbook Problems 5.8,10 and Midterm II – 2002 Problem 1

  18

Oct.19

Ch. 4-4

 

 

Divergence and Gauss Law for E

YouTube Video Lectures #17:

Power Point

1-Intro

2 – Cylindrical

3 – continued

4 - continued

5 – Spherical

6-continued

FAQ

 

j0234687 Gauss Law Song &  Lyrics

What I want you to learn from this song:  !!! Gauss Law for E is used ONLY for SYMMETRIC charge distributions!!!

    Example

For more examples, see old Midterm IIs, and final exams.

Portfolio 18: How do you compute the electric field using Gauss Law for E? Work out the “Left Hand Side” and “Right Hand Side” integrals for cylindrical and spherical coordinates.

Homework #18: Textbook problems 4.22, and Midterm II-2006 Problem 1 (cylindrical), and Midterm II-2007 (Spherical) Problem 1

  19

Oct 21

Ch. 5-3

 

Gauss Law for H & Ampere’s Law

YouTube Video Lectures #19:

1 intro

2 steps

Power point

Mp4 files

3 Line Example

4 Surface Example

5 Toroid example

FAQ

Ampere’s Law is only used for SYMMETRIC current distributions.

Example

For more examples, see old Midterm IIs, and final exams.

 

 

 

j0234687OK, remember that part about ‘no magnetic charges’?  Check this out…

Portfolio 19: How do you compute the magnetic field using Gauss Law for H (Ampere’s law)? Work out the “Left Hand Side” and “Right Hand Side” integrals for cylindrical coordinates.

Homework #19

Midterm II 2004 Prob 1

Midterm II 2005 Prob 1

Midterm II 2006 Prob 3c

  20

Oct. 24

Ch. 3-4,4-5

Gradient, E and V

 

YouTube Video Lectures #20:

Power Point

MP4 files

1 Gradient

2 Laplacian

 

 

Portfolio 20: How do you find E from V and V from E?

Homework #20:

Textbook problems 4.36,38

 

 

Oct. 26

12:30  Meet at the Gaus Haus (see link for details>>>)

j0301252

Tour of the Gaus Haus (NMR Facility)

If you have a pacemaker, you should NOT go in this lab.  If this is the case, read about NMR online and turn in a short description of NMR and an interesting fact or observation.

What’s NMR?

More cool info on how NMR works

Turn in a note with some interesting fact or observation from the tour. Turn it in to the homework locker.

j0301252 Extra Credit !

NOW is a good time to PLAN YOUR FINAL PROGRAM OF STUDY.  What are you planning to take now through graduation?  Figure out which technical electives you will take. Be sure to plan the prereqs for the electives you want.

Spreadsheet resources are available on the department advising website.  It is STRONGLY recommended that you meet with a faculty member (the website has a list of your pre-assigned faculty advisor, or go to one in your technical area of interest).  Here are my notes for EM Advising.

Get one free homework:

Turn in your program of study signed by a faculty member in your technical area of interest. 

OR

Look up your ‘dream job’ on any career website (for instance the IEEE job site or Monster.com) and turn in a plan for how to GET that job or one just like it in the future.

  21

Oct. 26

Ch. 4-8,5-6

Boundary Conditions

YouTube Video Lectures #21

1-Boundary Conditions

Power Point

2-Example

How BC affect the fields

How to find a vector normal to a plane (thank you to Eric Lundquist!)

Portfolio 21: What are the electric and magnetic field boundary conditions, and how do you apply them?

Homework 21: Textbook problems 4.48,4.49,5.32,5.34

  22

Oct.28

Ch 6-1,2

Dr. Furse out of town

Faraday’s and Lenz’s Laws (Time Varying Fields)

YouTube Video Lectures #22

Faradays Experiments Watch at least the highlighted video.

1 -Moving Coil & Battery Switching

2 -Moving Coil

3 -Applications of Faradays Law

4- Field Line Demos

5-Eddy currents and Lenz

6-How to build a simple electric motor

1-Faraday’s Law

Power Point

MP4

2-continued

3-Lenzs Law

For more examples, see old Midterm IIs, and final exams.

M2 – 2004 – Prob 2 and M2 – 1998 – Prob 1j0234687

Simple Motor Demos:

Faraday motor

Another motor

And one more

Cornell physics demo of Hertz

Portfolio 22: Explain Faraday's and Lenz's Laws.

 

Homework # 22: Textbook problems 6.1, 3,6,7

  23

Oct. 31

Displacement Current

YouTube Video Lectures #23:

1-Displacement Current

Power Point

2-continued

MP4

 Other things you may need to review for this section (see Ch3)

 Divergence, Curl , Conduction Current

 

j0234687Displacement Current Song

(MP3)  (words)  (sheet music)

 

Displacement Current:  The Great Debate

Portfolio 23: How can there be a current when there is no conductor?? Explain the current through a parallel plate capacitor.

Homework 23: 6.14,16,18

 

Nov 2

Review II Topics

 

Old exams and study aids are on the Exam link

 

Nov 4

Midterm II – Electro & Magnetostatics

(Please keep your homework due this week until after the exam)

24

Nov 7

Link Budgets

Simplified Sheet

Review: Decibels

Satellite Link spreadsheet

Overview of Link Budgets

Link Budget Calculator

More on dB

j0305257This lecture gives you the information needed for Lab 6.  No homework today.  Do the prelab for Lab 6.

Nov 8

j0301252Extra Credit Lecture

7:30 pm

Skaggs Biology Lecture Hall

The Arctic’s shrinking ice pack, Dr. Hajo Eiken.

Write down 2 things you found interesting in this lecture.  Get ANY professor to sign it.  Turn it in to the HW locker for 10 points extra credit

  25

Nov 9

Ch 7-1,2

Plane Waves in Lossless Material

The Right Hand Rule

 

YouTube Video Lectures #28:

1 Maxwell

JPG

2 Wave Eqns

JPG

3 Comparison to TL

JPG

4 Plane Waves

JPG

5 E,H Fields

JPG

6 Summary

JPG

j0234687 Derivation of the Wave Equation (in SONG)

 

 

j0305257Remember that in Lab 1 you programmed equations for α,β,λ.  You can use that program again here.

Portfolio 25: Explain the relationship between time domain and phasor forms of Maxwell's equations. Explain complex permittivity.

Homework #25: Text Problems 7.1,4,6

 

 

 26

Nov. 11

Ch 7-4,8-1

Plane Waves in Lossy Layered Material

Lossless Smith Chart Example

Lossy Smith Chart Example

NEW (note correction to step 7): Smith Chart for 3 Layer Cookbook

YouTube Video Lectures:

>> These videos are hard to read.  Sorry. See replacements below.

1 Overview

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2 Equations

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3 Ref Coef (2 regions)

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