525.605.81 - Intermediate Electromagnetics

Expanded Course Description

Prerequisites:

• 201 – Circuits, Devices and Fields
• 202 – Signals and Systems

• Multivariate Calculus and Partial Differential Equations

Techniques from these courses will be used throughout the course. We’ll start with a BRIEF math review but note that if you don’t have a decent grasp of these already you probably won’t have time to learn what you need on the fly.

Course Structure

The course materials are divided into modules which can be accessed by clicking Modules on the menu. A module will have several sections including the overview, content, readings, discussions, and assignments. You are encouraged to preview all sections of the module before starting. Modules run for a period of 7 days from Monday to Sunday. Following the closure of a Module an online office hour is held to entertain questions about the module that just finished as well as to give hints on the homework that is due on Wednesday evening at 11:59 PM eastern time. Accordingly, the homework is due 9 days after the opening of a module.

Group discussion questions also close for each module at the same time (i.e., 11:59 PM eastern time on Wednesdays.) Any exceptions are noted in the Course Outline. You should regularly check the Calendar and Announcements for assignment due dates.

Course Topics

• Vectors and Vector Calculus
• Electrostatic Fields
• Problem Solving Methods and Introduction to Electrical Currents
• Introduction to Magnetic Fields in Steady State Conditions
• Time-Varying Fields and Maxell’s Equations
• Plane Electromagnetic Waves
• Transmission Lines
• Waveguides
• Antennas

Course Goals

To establish a basic background concerning electromagnetic theory necessary for graduate level courses in electrical engineering. The course is intended to bridge the gap created when a student takes only one course in engineering electromagnetics in their undergraduate program. The course can also serve as a refresher course for students who have been away from the topic for a long time.

Course Learning Outcomes (CLOs)

• Review basic vector algebra and vector calculus necessary for course.
• Cover/review electrostatics and magnetostatics.
• Cover time-varying fields and Maxwell's equations. Students will solve the wave equation and use plane waves to represent solutions.
• Be able to solve problems involving electromagnetic propagation, waveguides and antennas

Textbooks

Cheng, D. K. (1989). Field and Wave Electromagnetics (2nd ed.). Reading, MA: Addison-Wesley. ISBN-13: 978-0-201-12819-2

Textbook information for this course is available online through the appropriate bookstore website: For online courses, search the BNC website at http://ep.jhu.edu/bookstore.

Other Materials & Online Resources

Additionally, any of the following texts or other texts that you may have from previous courses may be useful for this class if you find yourself struggling with specific skills:

Hayt, William H., & Buck, John A. (2012) Engineering Electromagnetics (8th ed.). New York, NY: McGraw Hill Publishers. ISBN: 978-0-07-338066-7.

Demarest, K. R. (1997). Engineering electromagnetics. Upper Saddle River, NJ: Prentice Hall. SBN-10: 0023285214 ISBN-13: 978-0023285219.

Required Software

Students will need to have access to a Math software package. Any math package that the student selects to use will be acceptable (e.g., MATLAB, Mathcad, Mathematica).

You may obtain MATLAB or Mathematica from using your myJHU page at no cost. Click on to cloud icon seen in the center of the page. You will then install CITRIX. After installation, you go to the APPS page. MATLAB (and Mathematica) are there.

Student versions of MATLAB and Mathcad are available online. You may view the links below for more information on purchasing student copies if you do not have a math package available for use.

MATLAB http://www.mathworks.com/academia/student_version/.

Mathcad http://store.ptc.com/store/ptc/DisplayCategoryProductListPage/categoryID.10011800.

Student Coursework Requirements

The amount of time each student spends on this course per week differs for each student; however, in general is expected that each module will take approximately 7–10 hours per week to complete. If you want to do well, we highly recommend that you watch the lecture videos for each module AFTER reading the relevant section in the text. You’ll get much more out of it that way! Also, some problem-solving techniques are covered in the lectures that are not covered in the text.

Here’s what we recommend:

Start each week by reading the discussion topic on Canvas. You may not know how to answer the question, yet, but this will help you keep it in mind while you’re studying (you’ll need to attempt to answer it during the week, don’t forget!).

Read the text, WORK THROUGH THE EXAMPLES!! The examples are a good place to assimilate and understand basics of problem solving. You have a solution worked out right in front of you. Attempt to do the examples without looking at the answer, but don’t sit for hours struggling. Try to balance checking the solution with forcing yourself to work through it.

Watch the lectures! And as mentioned, there are some very good problem-solving techniques in the lectures that may appear on the exams. We will do our best not to surprise you but note that you are responsible for ALL of the course content. The lectures and problems presented in the lectures are fair game for the exams.

Do the homework and turn it in on time!

This course will consist of the following basic student requirements:

Preparation and Participation (10% of Final Grade Calculation)

Each student is responsible for carefully reading all assigned material and being prepared for discussion. The majority of readings are from the course text. Additional reading may be assigned to supplement text readings.

Post your initial response to the discussion questions by 11:59 PM eastern time on Saturday. Follow up comments are due by 11:59 PM eastern time on Wednesday. The discussion questions are locked on Wednesday after the deadline and you will no longer be able to contribute. Posting a response to the discussion question is part one of your grade for class discussions (i.e., Timeliness).

Part two of your grade for class discussion is your interaction (i.e., responding to classmate postings with thoughtful responses) with two classmates (i.e., Critical Thinking). Just posting your response to a discussion question is not sufficient; we want you to interact with your classmates. Be detailed in your postings and in your responses to your classmates' postings. Feel free to agree or disagree with your classmates. Please ensure that your postings are civil and constructive.

Responding to Class Discussion Topics—Drs Weiss and Thomas will monitor class discussions and will respond to some of the discussions as discussions are posted. In some instances, they will summarize the overall discussions and post the summary for the class.  Students are expected to respond to every discussion question for every module for the entire semester!

Evaluation of preparation and participation is based on contribution to discussions. Preparation and participation are evaluated by the following grading elements:

Preparation and participation are evaluated by the following grading elements:

1. Timeliness (50%) (yes, this means your responses must be ON TIME; we will not accept late discussion responses)
2. Critical Thinking (50%)

Once a module discussion ends (at 11:59 PM on Wednesday), the ability to contribute to discussion questions for the module also ends as the questions become locked.

Assignments (30% of Final Grade Calculation)

All assignments are due according to the dates in the Calendar.

Late homework will not be accepted for full credit unless you’ve made arrangements with us IN ADVANCE (not the day that the homework is due). We post the homework solutions after collecting the assignments; therefore, we have no way of knowing if you’re using the solutions to do your homework if you turn it in late. For that reason, we do not accept late homework.  For the first week after the due date, homework is subject to a 50% reduction in score. After two weeks, homework is not accepted.

Quantitative assignments are evaluated by the following grading elements (this is a rough guide and is ultimately up to the grader):

1. Each part of question is answered (20%).
2. Assumptions are clearly stated (20%).
3. Intermediate derivations and calculations are provided (25%).
4. Answer is technically correct and is clearly indicated (25%).
5. Answer precision and units are appropriate (10%).

Quantitative assignments are graded as follows:

100–90 = A—All parts of question are addressed; All assumptions are clearly stated; All intermediate derivations and calculations are provided; Answer is technically correct and is clearly indicated; Answer precision and units are appropriate.

89–80 = B—All parts of question are addressed; All assumptions are clearly stated; some intermediate derivations and calculations are provided; Answer is technically correct and is indicated; Answer precision and units are appropriate.

79–70=C—Most parts of question are addressed; Assumptions are partially stated; Few intermediate derivations and calculations are provided; Answer is not technically correct but is indicated; Answer precision and units are indicated but inappropriate.

<70=F—Some parts of the question are addressed; Assumptions are not stated; Intermediate derivations and calculations are not provided; The answer is incorrect or missing; The answer precision and units are inappropriate or missing.

Exams (60% of Final Grade Calculation, combined from 30% for Midterm and 30% for Final)

The midterm exam will be available after Module 6 and the final exam will be available in the last Module. Instructions and timelines for completing exams will be discussed during the course; in general, you’ll be checking out both exams online and will have 5 hours to complete and upload them. In general, students have 4-day window in which to take the test. However, once downloaded, the test must be returned within 5 hours. Specific instructions will be given in Midterm Module and in the Final Exam Module.

Grading Policy

Assignments are due according to the dates posted in your Canvas course site. You may check these due dates in the Course Calendar or the Assignments in the corresponding modules. We will post grades one week after assignment due dates.

A grade of A indicates achievement of consistent excellence and distinction throughout the course—that is, conspicuous excellence in all aspects of assignments and discussion in every week.

A grade of B indicates work that meets all course requirements on a level appropriate for graduate academic work. These criteria apply to both undergraduates and graduate students taking the course.

EP uses a +/- grading system (see “Grading System”, Graduate Programs catalog, p. 10). You should contact your Program Chair for guidance on the breakdown used by your program.

IN GENERAL, student grades will follow the usual numerical guide (but MAY be altered slightly as we see fit; do yourself a favor and DO NOT count on any curving of the grades):

100–98 = A+

97–94 = A

93–90 = A−

89–87 = B+

86–83 = B

82–80 = B−

79–70 = C

Final grades will be determined by the following weighting: 

Academic Policies

Deadlines for Adding, Dropping and Withdrawing from Courses

Students may add a course up to one week after the start of the term for that particular course. Students may drop courses according to the drop deadlines outlined in the EP academic calendar (https://ep.jhu.edu/student-services/academic-calendar/). Between the 6th week of the class and prior to the final withdrawal deadline, a student may withdraw from a course with a W on their academic record. A record of the course will remain on the academic record with a W appearing in the grade column to indicate that the student registered and withdrew from the course.

Academic Misconduct Policy

All students are required to read, know, and comply with the Johns Hopkins University Krieger School of Arts and Sciences (KSAS) / Whiting School of Engineering (WSE) Procedures for Handling Allegations of Misconduct by Full-Time and Part-Time Graduate Students.

This policy prohibits academic misconduct, including but not limited to the following: cheating or facilitating cheating; plagiarism; reuse of assignments; unauthorized collaboration; alteration of graded assignments; and unfair competition. Course materials (old assignments, texts, or examinations, etc.) should not be shared unless authorized by the course instructor. Any questions related to this policy should be directed to EP’s academic integrity officer at ep-academic-integrity@jhu.edu.

Students with Disabilities - Accommodations and Accessibility

Johns Hopkins University values diversity and inclusion. We are committed to providing welcoming, equitable, and accessible educational experiences for all students. Students with disabilities (including those with psychological conditions, medical conditions and temporary disabilities) can request accommodations for this course by providing an Accommodation Letter issued by Student Disability Services (SDS). Please request accommodations for this course as early as possible to provide time for effective communication and arrangements.

For further information or to start the process of requesting accommodations, please contact Student Disability Services at Engineering for Professionals, ep-disability-svcs@jhu.edu.

Student Conduct Code

The fundamental purpose of the JHU regulation of student conduct is to promote and to protect the health, safety, welfare, property, and rights of all members of the University community as well as to promote the orderly operation of the University and to safeguard its property and facilities. As members of the University community, students accept certain responsibilities which support the educational mission and create an environment in which all students are afforded the same opportunity to succeed academically. 

For a full description of the code please visit the following website: https://studentaffairs.jhu.edu/policies-guidelines/student-code/

Classroom Climate

JHU is committed to creating a classroom environment that values the diversity of experiences and perspectives that all students bring. Everyone has the right to be treated with dignity and respect. Fostering an inclusive climate is important. Research and experience show that students who interact with peers who are different from themselves learn new things and experience tangible educational outcomes. At no time in this learning process should someone be singled out or treated unequally on the basis of any seen or unseen part of their identity. 
 
If you have concerns in this course about harassment, discrimination, or any unequal treatment, or if you seek accommodations or resources, please reach out to the course instructor directly. Reporting will never impact your course grade. You may also share concerns with your program chair, the Assistant Dean for Diversity and Inclusion, or the Office of Institutional Equity. In handling reports, people will protect your privacy as much as possible, but faculty and staff are required to officially report information for some cases (e.g. sexual harassment).

Course Auditing

When a student enrolls in an EP course with “audit” status, the student must reach an understanding with the instructor as to what is required to earn the “audit.” If the student does not meet those expectations, the instructor must notify the EP Registration Team [EP-Registration@exchange.johnshopkins.edu] in order for the student to be retroactively dropped or withdrawn from the course (depending on when the "audit" was requested and in accordance with EP registration deadlines). All lecture content will remain accessible to auditing students, but access to all other course material is left to the discretion of the instructor.