Introduction to ECE 303 at Cornell University, Lecture notes of Electromagnetism and Electromagnetic Fields Theory

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ECE 303 – Fall 2007 – Farhan Rana – Cornell University

Lecture 1

Introduction to the Course ECE 303

In this lecture you will learn:

• The basic structure of the course
• Course policies
• Introduction to Electromagnetic Fields and Waves

•The cutting edge areas in related applications and research

ECE 303 – Fall 2007 – Farhan Rana – Cornell University

Recitation Sections

• In order to take this class every student MUST be able to attend:
  • One recitation section on Tuesday

AND

• One recitation section on Thursday
• Recitation Instructors:

Dr. Wesley Swartz Paul George Dr. Christina Manolatou

• Recitation Schedule:

(a) Tuesday and Thursday 1:25-2:40 PM in PH

(b) Tuesday and Thursday 2:55-4:10 PM in PH

ECE 303 – Fall 2007 – Farhan Rana – Cornell University

Tutorial Sections

• Tutorials are offered by the TAs
• Course TAs are:

Paul George, Felix Lee

• Tutorials are NOT mandatory
• Tutorials are meant to help you in homework
• Tutorial schedule (room PH403):

(a) Thursday 4:30-5:30 PM (Paul George)

(b) Thursday 6:00-7:00 PM (Felix Lee)

• Office hours are meant for students looking for individual help

(a) Wednesday 3:00-4:00 PM (PH113)

(b) Friday 3:00-4:00 PM (PH113)

Office Hours

ECE 303 – Fall 2007 – Farhan Rana – Cornell University

Course Website

• All course documents, including:
  • Lecture notes
  • Homeworks and solutions
  • Exam solutions
  • Extra course related material

will appear on the course website:

http://instruct1.cit.cornell.edu/courses/ece303/

Homeworks

• Homeworks will be due on Fridays at 5:00 PM in the course drop box
• New homeworks and old homework solutions will appear on the course website by Friday night
• Homework 1 will be due next Friday and will be available on the course website by tonight

ECE 303 – Fall 2007 – Farhan Rana – Cornell University

Course Material and Textbooks

First 3-4 weeks:

(a) Lecture Slides/Notes

and

(b) Online text book:

http://web.mit.edu/6.013_book/www/

Next 8-9 weeks:

(a) Lecture Slides/Notes

and

(b)

ECE 303 – Fall 2007 – Farhan Rana – Cornell University

A New Course Textbook

• Chapters from a new course textbook (partially completed) and written by the Cornell faculty will be made available through Blackboard
• Students must enroll in Blackboard to access these chapters:

http://blackboard.cornell.edu/

ECE 303 – Fall 2007 – Farhan Rana – Cornell University

Course Grading

• Course grading will be done as follows:
  • Recitations (5%)
  • Homeworks (20%)
  • 3 Prelims (40%)
  • Final exam (35%)
• Final exam will be comprehensive

ECE 303 – Fall 2007 – Farhan Rana – Cornell University

Maxwell’s Equations in Free Space

t

E

H J

t

H

E

H

E

o

o

o

o

∂

∂

∇× = +

∂

∂

∇× =−

∇ =

∇ =

r

r r

r

r

r

r

ε

μ

μ

ε ρ

( 4 )

( 3 )

( 2 ). 0

( 1 ). Gauss’ Law

Gauss’ Law

Faraday’s Law

Ampere’s Law

James Clerk Maxwell (1831-1879) The entire course is about these 4 equations !!

ECE 303 – Fall 2007 – Farhan Rana – Cornell University

49.92 MHz incoherent scatter radar at the Jicamarca Observatory The radar has an array of 18,432 half-wave dipoles !!

Radars for Upper Atmosphere Research

ECE 303 – Fall 2007 – Farhan Rana – Cornell University

300 m

Arecibo Radio Telescope in Puerto Rico

ECE 303 – Fall 2007 – Farhan Rana – Cornell University

Dish Antennas for Satellite Communications

A DIRECTV dish antenna

ECE 303 – Fall 2007 – Farhan Rana – Cornell University

Dopler Radar of an F-16 Plane

ECE 303 – Fall 2007 – Farhan Rana – Cornell University

PANCAM (^) High Gain Antenna

Mars Rover

Antennas for Deep Space Communications

ECE 303 – Fall 2007 – Farhan Rana – Cornell University

Communication Networks: Wireless and Optical

ECE 303 – Fall 2007 – Farhan Rana – Cornell University

A dipole antenna integrated with a low noise amplifier on a PC board for mobile receivers (4-8 GHz)

Stub tuners

Antennas for Mobile Consumer Products

A PCMCIA card antenna – shown with the cover removed (2-5 GHz)

ECE 303 – Fall 2007 – Farhan Rana – Cornell University

A 100 GHz integrated monopole antenna A 60 GHz patch antenna

Antennas: The Next Wave in Integration

A 500-2000 GHz log-periodic integrated antenna

500 μm

ECE 303 – Fall 2007 – Farhan Rana – Cornell University

Guiding Electromagnetic Energy: Transmission Lines

shield (^) center conductor

+

V - R

Transmission Lines

ECE 303 – Fall 2007 – Farhan Rana – Cornell University

Microwave Circuits

100 um

A planar on-chip inductor

A 3-D on-chip inductor

A GaN amplifier chip with stub tuners for 10 GHz operation

A Silicon 1 GHz amplifier chip

ECE 303 – Fall 2007 – Farhan Rana – Cornell University

Semiconductor laser

~ RF (^) DC

detector

optical fiber

pump laser

Erbium Doped Fiber Amplifier

optical fiber

Optical Fiber Communication Links

Light guiding in an optical fiber

cladding

core

light in

light out

ECE 303 – Fall 2007 – Farhan Rana – Cornell University

A commercial packaged

diode laser

Semiconductor Lasers: Powering Up the Information Age

Semiconductor

laser chip actual laser

(the long strip)

Wire bond

Optical fiber

Microwave coaxial line

ECE 303 – Fall 2007 – Farhan Rana – Cornell University

A semiconductor laser that produces femtosecond long pulses of light

A widely tunable 20 GHz modulation speed semiconductor laser

An optical micro-ring filter (separates out light of a particular color)

An optical micro-splitter (splits light two ways)

Micro-Photonics: Processing Photons on Chips

fiber

100 um

2 um

ECE 303 – Fall 2007 – Farhan Rana – Cornell University

Nano-Electronics

100 nm

A single electron transistor (works on the principle of strong electrostatic repulsion between electrons in nanostructures)

100 nm

A 50 nm gate MOS transistor (electrostatics become more important as device dimensions shrink)

A single atom transistor

ECE 303 – Fall 2007 – Farhan Rana – Cornell University

MEMs: Micro-Electro-Mechanical Devices

Bar Resonator Checkerboard Filter

VHF Beam

Electrostatically actuated MEMs resonators could be components of future integrated wireless systems

ECE 303 – Fall 2007 – Farhan Rana – Cornell University

Nano-Biology and Electromagnetics

Protein folding is determined by the complex electrostatic interactions among the atoms

The generation and propagation of action potentials in nerve cells are modeled as electrical signals in (non-linear) transmission lines

A transmission line model of a nerve cell

ECE 303 – Fall 2007 – Farhan Rana – Cornell University