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Notes 1 Introduction

ECE 3317. Prof. Ji Chen. Spring 2014. Notes 1 Introduction. Adapted from notes by Prof. Stuart A. Long. Motivation:

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Notes 1 Introduction

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  1. ECE 3317 Prof. Ji Chen Spring 2014 Notes 1 Introduction Adapted from notes by Prof. Stuart A. Long

  2. Motivation: Most basic of all ECE courses: Electromagnetics provides the foundation for all electrical sciences and engineering. All of circuit theory is a special case (low frequency, where dimensions are small relative to a wavelength). Electromagnetics explains physical phenomena: What is light? How do electric and magnetic fields behave? Important to know about EM: Extremely important for areas such as antenna design, microwave engineering, RF design. Also very important for power engineering and micro/nano-electronics. It is good to know for all areas of ECE.

  3. Applications Applied Electromagnetics: Antennas, Radar, Microwaves, RF circuits. Wireless Communications: Cell phones; Bluetooth; Wireless routers; Cordless handsets; RFIDs.

  4. Applications (cont.) Computer and Electronic Applications: Electromagnetic Compatibility (EMC) and Electromagnetic Interference (EMI). At higher frequencies inference issues become more important. It becomes necessary to model the electromagnetic performance of the system (simple circuit theory is no longer adequate).

  5. Applications (cont.) In ECE 2317, you became familiar with staticfields. You also became familiar with vector calculus. In ECE 3317, we will deal with time-varying fields. Note: Most practical devices use time-varying fields (antennas, electronics, computers, etc.)

  6. Announcements • Homework is normally assigned about once per week. It is due at the beginning of class on the due date. • No late homework is accepted. • Homework will be distributed via the class website. • All important announcement will be placed on the class website (in the “Important Announcements” section). It is your responsibility to check this often.

  7. Announcements (cont.) It is the policy of this class that you must work on the homework completely by yourself. Any violation of this will be considered a violation of the UH Academic Honesty Policy, and this will be strictly enforced.

  8. Announcements (cont.) Class attendance may be taken at any time. It is also possible that pop quizzes may be given out randomly. If you miss three classes you may be dropped or fail the class.

  9. Announcements (cont.) The class notes will be placed on the class website (both pptxand pdf versions). If you have trouble reading the equations in the pptxversion, you are most likely having a font problem due to missing MathType fonts. • Use the pdf version • Download the free MathType fonts (www.mathtype.com).

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