introduction to electrical engineering from roy 2009
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Electrical Engineering
Electrical EngineeringElectrical Engineering
Electrical Engineering Overview DEPARTMENT OF
Wireless EEG system with internet/cellphone /GPS data transfer Capability
Wireless EEG system with internet/cellphone /GPS data transfer Capability
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Electrical Engineering
Why does the world need electrical engineers?
There are many challenges in facing the world for
sustainable and enhanced quality of life:
Trans ortation
Why does the world need electrical engineers?
Electrical Engineering Overview
Energy
Communication
Medicine
Housing
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Electrical Engineering
Why does the world need electrical engineers?
Electrical Engineers are needed for
creating electrical and electronic
solutions to these challenges!
Electrical Engineering Overview
For example..
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Electrical Engineering
Transportation
Power Semiconductors
and energy storagetechnology Plug-in
Hybrid Electric Vehicles
Electrical Engineering Overview
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Electrical Engineering
Energy: Photovoltaic Materials
Electrical Engineering Overview
Renewable Energy
Solar Power from
Photovoltaic Materials
Wind Power from
Generators
(IEEE Spectrum, August 2008)5
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Electrical Engineering
Communication
Integrated Circuits andRF/Microwave Electronics
Apple
Electrical Engineering Overview
(IEEE Spectrum October 2007)
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Electrical Engineering
Medical Technologies
Implantable radiation
sensors to improvecancer therapy
Electromagnetic imaging
Electrical Engineering Overview
(IEE Spectrum June 2008)
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Electrical Engineering
Housing
Electronic Systems:
energy management
Telecommunications
Electrical Engineering Overview
entertainment
(IEEE Spectrum May 2008)
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Electrical Engineering
What can you do as an electrical engineering student?
Electrical Engineering
Electrical Engineering Overview
For example
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Electrical Engineering
Razor-Lazer Music Transmitter
Designed and Built by Students Eric A. DeCuir Jr. and David Fryauf
Electrical Engineering Overview 10
Project Goal:Project Goal:
Transmit stereo music over a laser beam to a remote stereo receiver
How it works:How it works:
MP3 player outputs varying electrical signal from mini headphone jackthis electrical
signal is converted into amplitude modulated 635nm laser light via an audio transformer
silicon phototransistor converts modulated laser light back into varying electrical
signal transducer (speaker) converts electrical energy back into sound by compressing
the air in front of a moving cone creating what our ear interprets as sound.
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Electrical Engineering
Razor-Lazer Music Transmitter
Musicout
3V 9VAudiotransformer(1000/8)
LED*
Electrical Engineering Overview
photodiodesMusic in
3V 9V
Audiotransformer(1000/8)
LED*
* LED protects laserdiode from voltage
spikes
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Electrical Engineering
Electrical engineers have the opportunity of:Electrical engineers have the opportunity of:
-- Advancing the state of the art in any of theAdvancing the state of the art in any of the
above fieldsabove fields
--
Electrical Engineering
Electrical Engineering Overview
-- Average entry salary of $56,512Average entry salary of $56,512-- Entering the job market at the right timeEntering the job market at the right time
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Electrical Engineering
Texas Instruments, National Semiconductor, Micron,Texas Instruments, National Semiconductor, Micron,
IntelIntel National Labs (Sandia, NREL, )National Labs (Sandia, NREL, )
Government (NSA, Pine Bluff Arsenal)Government (NSA, Pine Bluff Arsenal)
EE Employers
Electrical Engineering Overview
SWEPCO (AEP), SPP, OG&ESWEPCO (AEP), SPP, OG&E Northrop Grumman, RaytheonNorthrop Grumman, Raytheon
Small BusinessesSmall Businesses
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Electrical Engineering
19 Faculty Members19 Faculty Members
Fellows of the Institute of Electrical and ElectronicsFellows of the Institute of Electrical and Electronics
EngineeringEngineering
Distinguished Professor Samir El-GhazalyProfessor Len Schaper
Fellows of Other InstitutesFellows of Other Institutes
EE Department
Electrical Engineering Overview
ro essor mon ng
Distinguished Professor Vasu Varadan
Distinguished Professor Vijay Varadan
Dr. Samir ElDr. Samir El--Ghazaly (elGhazaly ([email protected])[email protected])
Department Head3217 Bell Engineering
Dr. Juan Carlos Balda ([email protected])Dr. Juan Carlos Balda ([email protected])
Associate Department Head
3217 Bell Engineering14
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Electrical Engineering
Many opportunities to develop leadership and practical
engineering experience: IEEE
HKN
Student Activities
Electrical Engineering Overview
IMAPS
IEEE CPMT
Solar Boat (Annual Solar Splash Competition)
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Electrical Engineering
The Department has dedicated more than
$55K in scholarship funds for the 2008-2009FEP class.
EE Scholarships
Electrical Engineering Overview
students, typically $1000 to $2000 per year
Up to 3 years provided that the student
maintains required academic standards.
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Electrical Engineering
EE faculty members normally provide opportunities for
undergraduate to engage in research work at theirlaboratories.
EE Undergrad Research
Electrical Engineering Overview
ese oppor un es no on y en ance yourundergraduate learning experience but:
(1) you could use this work up to 6 hours of ELEG6 hours of ELEG
technical electivestechnical electives, and
(2) Many cases you are areare paid for conductingpaid for conducting
research!research!
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Electrical Engineering
Dr. SimonDr. Simon AngsAngs ResearchResearchELEG 2113ELEG 2113
Brain Probes and Sensors
E-coli bacteria detection
e-coli
Olfactory bulb recording in rat
Electrical Engineering Overview
Microsystems
Microthruster for
micro spacecraftNano-Spring
Nano-ElectricalContact
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Electrical Engineering
Medical ImagingMedical Imaging
Microwave Techniques for Breast CancerMicrowave Techniques for Breast CancerDr. Magda ElDr. Magda El--ShenaweeShenaweeELEG 3133ELEG 3133 ELEG 3703ELEG 3703
TransmittingTransmittingAntennaAntenna
ReceivingReceivingAntennaAntenna
BreastBreastTumorTumor
Electrical Engineering Overview DEPARTMENT OF
Radar SystemRadar System
Wave penetrationWave penetration 1/(frequency, tissue conductivity)1/(frequency, tissue conductivity)
High frequency waveHigh frequency wave
Low frequency waveLow frequency wave
Not goodNot good
GoodGood
GoodGood
Not goodNot good
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Electrical Engineering
Semiconductor NanostructuresSemiconductor NanostructuresDr. Omar ManasrehDr. Omar Manasreh
ELEG 3213ELEG 3213
To deep space applications
Electrical Engineering Overview DEPARTMENT OF
From mine detectionusing giant rats
To 15 or more color detectionsystems using lighter weight and
smaller size satellites12 1 1 10 9 8
800 900 1000 1100 1200 1300 1400
0
1x103
2x103
3x103
4x103
5x103
Wavelength (m)
VB=0.6 V
Photores
ponse
(arbit.units)
Wavenumber (cm-1
)
T=7.0K VB=2.0 VSample No. SC-QWIP
bottom Stack GaAs/Al0.09
Ga0.91
As
Multi-Color Focal Plane ArraysInfrared Detectors Based on
Semiconductor Nanostructures
Nanocrystals
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Electrical Engineering
MixedMixed--Signal ApplicationsSignal ApplicationsDr. Alan MantoothDr. Alan Mantooth
ELEG 3223ELEG 3223
Electrical Engineering Overview DEPARTMENT OF
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Electrical Engineering
Smart Vest with CNT NanoSmart Vest with CNT Nano--Fibers andFibers andSensorsSensors
Dr. Vijay VaradanDr. Vijay Varadan
Aligned multiwalled carbon
nanotubes
Vegus nerve stimulator
Electrical Engineering Overview DEPARTMENT OF
Wireless smart vest for ECG, EKG, Respiration etc., andfor blood flow , oxygen and viscosity of blood measurement
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Electrical Engineering
Whats in your cell phone?Whats in your cell phone?Dr. Len SchaperDr. Len Schaper
ELEG 3913ELEG 3913
Electrical Engineering Overview DEPARTMENT OF
There may be only 1010 15 integrated circuits15 integrated circuits on both sides of a cellphone printed circuit board, but several hundred passive componentshundred passive components(resistors and capacitors) highlighted in yellow.
Research work at UAResearch work at UA is finding manufacturing processes to build thesepassive components on a layer .002 thick within the circuit board,freeing up space on the front and back of the board for more ICs andfreeing up space on the front and back of the board for more ICs andadditional functionsadditional functions.
In cell phones, Thin is In!
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Electrical Engineering
Embedded Systems at UAEmbedded Systems at UA
Dr. Scott SmithDr. Scott SmithELEG 2903, ELEG 2913ELEG 2903, ELEG 2913
Embedded systems are ubiquitous in our daily lives
e.g. cell phone, MP3 player, PDA, GPS receiver, video gamesystems
Bay Area Rapid Transit
(BART) Train Control System
Electric Wheelchair Capable of
Autonomously Traversing Stairs
Fishing System for Tetraplegics
Electrical Engineering Overview DEPARTMENT OF
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Electrical Engineering
Radio Frequency Identification (RFID)Radio Frequency Identification (RFID)Dr. Kazem SohrabyDr. Kazem Sohraby
ELEG 3123, ELEG 3133ELEG 3123, ELEG 3133
Electrical Engineering Overview DEPARTMENT OF
Main Functions Reader-to-Tag Tag-to-Reader Reader-to-Server Server-to-Reader
Basic O erations to Identif Ta s
RFID System Architecture
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Electrical Engineering
Microwave & Optics Laboratory for Imaging &Characterization
Dr. Vasundara VaradanDr. Vasundara Varadan
Research Areas ApplicationsNegative Property MW Materials Collision Avoidance Automotive Radars, Stealth Materials, Cloaksfor Invisibility, LTCC fabrication of metamaterialsBroadband MW Characterization 5-110 GHz, -40C-1500C, MW ceramics, biological tissues,
phantomsMW Imaging Early detection of Breast CancerNon-Destructive Evaluation (NDE) Non-contact security screening for detection of objects concealed
under clothes & footwear - protects privacy of airport passengers!!Embedded Sensor Systems Self-contained, compact point of care medical monitoring systems- cou h ulse blood ressure res iration
Electrical Engineering Overview
Fully automated computercontrolledimaging, scanning,characterization.
MW characterization of critical MW devices,antenna substrates, space tiles, shielding& radar absorbing materials, normal andcancerous breast tissue phantoms, etc.
Excellent opportunities forundergraduateresearch, international summerresearchprograms
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Electrical Engineering
Power Electronics and Power SystemsPower Electronics and Power SystemsDr. Juan Carlos Balda,Dr. Juan Carlos Balda,
Dr. Alan Mantooth, Dr. Roy McCannDr. Alan Mantooth, Dr. Roy McCann
Electrical Engineering Overview DEPARTMENT OFwww.climatetechnology.gov/library/2005/tech-options/tor2005-135.pdf
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Electrical Engineering
QUESTIONS?QUESTIONS?www.ee.uark.eduwww.ee.uark.edu
EE Contact
Electrical Engineering Overview
--oror googlegoogle electricalelectricalengineering university ofengineering university of
arkansasarkansas
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Electrical Engineering
Freshman Year
1 GNEG 1111 Intro to Engineering I 3 GNEG 1121 Intro to Engineering II
3 ENGL 1013 Composition I 4 MATH 2564 Calculus II3 CHEM 1103 University Chemistry I 4 XXXX XXX4 Freshman Science Elective
4 PHYS 2054 University Physics I 3 XXXX XXX3 University Core Elective4 MATH 2554 Calculus I 3 ENGL 1023 Technical Composition II
15 semester hours 15 semester hours
o homore Year
Electrical Engineering Overview 29
3 ELEG 2903 Digital Design I 3 CSCE 2003 Programming Foundations I
0 ELEG 2900L Digital Design I Lab 1 CSCE 2001L Prog. Found. I Lab
3 ELEG 2103 Electric Circuits I 3 ELEG 2113 Electric Circuits II
1 ELEG 2101L Electric Circuits I Lab 1 ELEG 2111L Electric Circuits II Lab
4 MATH 2574 Calculus III 3 ELEG 2913 Digital Design II
4 XXXX XXX4 Sophomore Science Elective 0 ELEG 2910L Digital Design II Lab
4 MATH 3404 Differential Equations
3 History Government Requirement15 semester hours 18 semester hours
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Electrical Engineering
Junior Year
3 ELEG 3123 Systems and Signals 3 ELEG 3223 Electronics II
1 ELEG 3121L System & Signal Lab 1 ELEG 3221L Electronics II Lab3 ELEG 3213 Electronics I 3 ELEG 3303 Energy Conversion
1 ELEG 3211L Electronics I Lab 1 ELEG 3301L Energy Conversion Lab3 ELEG 3923 Microprocessor Design 3 ELEG 3703 Electromagnetics
0 ELEG 3920L Microprocessor Design Lab 3 Humanities/Social Science Elective
3 CSCE 2013 Programming Foundations II1 CSCE 2011L Prog. Foundations II Lab
Electrical Engineering Overview 30
3 Math/Science elective
18 semester hours 14 semester hours
Senior Year
1 ELEG 4061 EE Design I 1 ELEG 4071 EE Design II
3 ELEG 4143 Stochastic Signal Processing 6 Electrical Eng Technical Elective3 Electrical Engineering Technical Elective 3 Technical Elective
3 Engineering Science Elective 3 Upper-level humanities/Social Science Elective
3 Technical Elective 3 Humanities/Social Science Elective3 Upper-level Hum/Social Science Elective
16 semester hours 16 semester hours