Chapter 0Course Introduction/Overview

Contents0.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . 30.2 Where are we in the Curriculum? . . . . . . . . . . . 40.3 Syllabus Overview . . . . . . . . . . . . . . . . . . . . 50.4 Instructor Policies . . . . . . . . . . . . . . . . . . . . 60.5 The Use of Software Tools . . . . . . . . . . . . . . . . 70.6 The EM I/EM II course sequence and Microwave Mea-

surements Lab . . . . . . . . . . . . . . . . . . . . . . 80.7 EM in the Classical Era . . . . . . . . . . . . . . . . . 90.8 EM in the Modern Era . . . . . . . . . . . . . . . . . 100.9 Dr Wickert’s Interets . . . . . . . . . . . . . . . . . . 11

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CHAPTER 0. COURSE INTRODUCTION/OVERVIEW

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0.1. INTRODUCTION

0.1 Introduction

� Course description

� Where are we in the undergraduate curriculum?

� Course syllabus main points

� Instructor policies

� The use of software tools

� The EM I/EM II course sequence (3110/3120) and MicrowaveMeasurements Lab (ECE 4115)

� Other EM courses for senior elective and graduate students

� EM in the Classical Era

� EM in the Modern Era

� Dr Wickert’s EM interests

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CHAPTER 0. COURSE INTRODUCTION/OVERVIEW

0.2 Where are we in the Curriculum?

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0.3. SYLLABUS OVERVIEW

0.3 Syllabus Overview

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ECE 3110 Electromagnetic Fields I Spring 2016

Class Time: Mon/Wed 12:15 ~ 1:30 PM

Classroom: Columbine Hall 216

Office Hours: Mon/Wed 11:00 ~ 12:00 PM, Tues 2:00 ~ 2:45 PM

Other times by appointment (walk in if available)

Web Site: http://www.eas.uccs.edu/wickert/ece3001/

Instructor

Dr. Mark Wickert, Professor

EN 292

mwickert@uccs.edu

Phone: 719-255-3500, FAX: 719-255-3589

Text

Fawwaz T. Ulaby, Fundamentals of Applied Electromagnetics, 7th. ed., Prentice Hall, 2015.

Course Description

Static electric and magnetic field analysis, Poisson’s and Laplace’s equations, steady electric

current, fields of steady electric currents, ferromagnetic materials, boundary-value problems

for static fields, time-varying electric and magnetic fields, and Maxwell’s equations and wave

equations. Relationship between field and circuit theory

Course Objectives

Provide students with methods to analyze and understand electromagnetic field problems

that arise in various branches of engineering

Provide student with a comprehensive introduction to electromagnetic fields and its

applications.

Expose the students to the fundamental concept and techniques of electromagnetics.

Topics

Waves and Phasors (Chapter 1)

Transmission Lines (Chapter 2)

Vector Analysis (Chapter 3)

Electrostatics (Chapter 4)

Magnetostatics (Chapter 5)

Homework

Assigned every Wednesday weekly. Assignments will be posted on the course Web Site

http://www.uccs.edu/wickert/ece3110/. Papers are due at the start of class. Please make your

work neat, logical, and on time. Late homework not accepted.

2/5

Exams

In-class quizzes: every Wednesday in class

Mid-term: March 16th, 2016

Final Exam: Wednesday May 18th, 2016 (10:20 AM – 12:20 PM)

Grading

Homework 10%

Quizzes + 1 (maybe two) Team Projects 50%

Mid-term exam 20%

Final exam 20%

Course Schedule

Week Week

Start Date Topics

Sections in

Textbook

Homework

Assigned

1 1/18/16

-Dimensions, units, and notation

-The Gravitational Force

-Electric Fields

-Magnetic Fields

-Static and Dynamic Fields

-Sinusoidal Wave in a Lossless

Medium

1-1, 1-2, 1-3.1 HW #1

2 1/25/16

-Sinusoidal Wave in a Lossy

Medium

-The Electromagnetic Spectrum

-Review of Complex Numbers

-Review of Phasors

-The Role of Wavelength

-Propagation Modes

1-3.2, 1-4, 1-

5, 1-6, 2-1 HW #2

3 2/1/16

-Lumped-Element Model

-Transmission-Line Equations

-Wave Propagation on a

Transmission Line

-Voltage Reflection Coefficient

-Standing Waves

-Input Impedance of the Lossless

Line

2-2, 2-3, 2-4,

2-5, 2-6 HW #3

4 2/8/16

-Short-Circuited Line

-Open-Circuited Line

-Application of Short-Circuit and

Open-Circuit Measurements

-Lines of Length l= nλ/2

-Quarter-Wave Transformer

-Matched Transmission Line

2-7 HW #4

5 2/15/16

-Instantaneous Power

-Time-Average Power

-Parametric Equations

2-8, 2-9.1 HW #5

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CHAPTER 0. COURSE INTRODUCTION/OVERVIEW

0.4 Instructor Policies

� Homework papers are due at the start of class

� If business travel or similar activities prevent you from attend-ing class and turning in your homework, please inform me be-forehand to see if we can work something out

� Grading is done on a straight 90, 80, 70, ... scale with curvingbelow these thresholds if needed

� Homework solutions will be placed on the course Web site inPDF format with security password required; hints pages mayalso be provided

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0.5. THE USE OF SOFTWARE TOOLS

0.5 The Use of Software Tools

� Computer analysis and simulation tools play a vital role in allengineering courses

� Analysis aids from low level to high level include:

– Calculator, e.g., TI89 (good practice for exams)

– Excel or similar spreadsheet program for calculations andplotting (more powerful than you might think)

– Mathematica (free for UCCS students on your own ma-chine) for symbolic and numerical calculations (there is alearning curve, but you may have used in the past)

– Python/PyLab (Jupyter (was IPython) Notebook or QTcommand line interface) with NumPy and matplotlib (Py-Lab), and SciPy very powerful, and free; (command lineinterface similar to MATLAB); notebook will be used inclass demos and a personal favorite since open source

– MATLAB (now free for UCCS students on your own ma-chine)

– LTspice for transmission line simulation + lumped ele-ments + generators, transient and AC frequency sweep;will use in Chapter 2

– ADS (advanced design system), a very powerful microwavecentric design tool from Keysight (formerly Agilent); notplanning on using for this course

– HFSS (high frequency structure simulator) a powerful elec-tromagnetic fields and waves simulator; not planning onusing for this course

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CHAPTER 0. COURSE INTRODUCTION/OVERVIEW

0.6 The EM I/EM II course sequence andMicrowave Measurements Lab

� Traditionally the two semesters of EM were static fields insemester one and dynamic or time varying fields in semestertwo

� Here at UCCS the text has been chosen to take a significanttime-varying fields topic and move it into the first semester;what could that be? transmission lines

� That leaves a lot of other fun and important topics for EM IIsuch as

– The full form of Maxwell’s equations

– Plane-wave propagation

– Wave reflection and transmission

– Radiation and antennas

– Satellite communication systems (in EM?) and Radar sen-sors

� The microwave measurements lab is a natural companion toEM II, as with time-varying fields in full swing, measurementsusing tools such as an RF/microwave signal generator, spec-trum analyzer, power meter, and network analyzer fit into place

� Furthermore the use of an anechoic chamber makes sense too(want a free-space like environment to compare theory withmeasured), likewise a screen/shielded room that is relativelyfree of external RF/microwave sources (signals)

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0.7. EM IN THE CLASSICAL ERA

0.7 EM in the Classical Era

The topic of engineering electromagnetics (EM) is rooted in bothphysics and mathematics. The majority of what goes on in thiscourse plays into your knowledge of these subjects. Circuit theory isalso critical to the understanding of the course.

The authors divide the history of EM into the classical era andmodern era (last 100 years). Well known names include:

� Coloumb: Electrical force between two charges

� Volta: Electric battery

� Ampère: Parallel currents in wires make then attract

� Biot & Savart: Relate magnetic field induced by wire segmentsto the current flowing through it

� Ohm: Relates electric potential to current and resistance

� Henry: Introduces concept of inductance

� Faraday: Changing magnetic flux and electromotive force

� Gauss: Relates electric flux through an enclosed surface to en-closed electric charge

� Maxwell: Four equations that are the foundation of classicalelectromagnetic theory

� Hertz: Electromagnetic radio waves

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CHAPTER 0. COURSE INTRODUCTION/OVERVIEW

0.8 EM in the Modern Era

EM plays a role in all electronic devices. A very long list, spreadover two time lines (communications and computers), are providedin the text. What can you add?

Microwave ablation for liver cancer treatmentElectromagnetic sensors

Cellphone

Astronomy:The Very LargeArray of RadioTelescopes

LCDScreen

Optical fiber

Plasmapropulsion

Global Positioning System (GPS) Motor

Telecommunication

Ultrasound transducer

Ablation catheter

LiverUltrasound image

Radar

Figure 1-2 Electromagnetics is at the heart of numerous systems and applications.Figure 1: Electromagnetics and Technology Today.

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0.9. DR WICKERT’S INTERETS

0.9 Dr Wickert’s Interets

� Communications (wireless)

– The RF/microwave portion of radio transmitters and re-ceivers is also included here

– I developed the microwave circuits course ECE 4250/5250(see course Web site)

� Signal processing

– Digital signal processing is my main focus

– Analog signal processing is also of great interest

– Early in my career I was involved with the electronics be-hind a 1 Gbps free-space optical communications system;wideband microwave circuit design played a critical role

Pulse Quanternary Optical Modulation

green laserlight

free space

1 Gbps

Figure 2: Pulse quanternary modulation (PQM) optical transceiverblock diagram

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CHAPTER 0. COURSE INTRODUCTION/OVERVIEW

A three line directionalcoupler (stripline) provides an important part of the receiver

The output waveformsfrom the dual striplinecombiner

Bit decisions on theA(t) and B(t) signalpaths are made everyTs seconds (2 ns) orat a 500 MHz rate

Additional performanceimprovement is obtainedby including the CostasLoop pulse demutliplexers

Here performance improvement is lowerprobability of bit error

Two of the three linecouplers plus onetransmission lineinverter complete thedesign

Figure 3: Details of the PQM receiver and the stripline coupler.

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