Conference Session

Innovations in ECE Education III

Collection

2007 Annual Conference & Exposition

Authors

Donald Peter, Seattle Pacific University

Tagged Divisions

Electrical and Computer

is written as ( jω ) + j 2ζω oω + ω 02 = s 2 + 2ζωo s + ω02.14 Another form is written as 2 1 s   s  1+   +   Q  ωo   ωo I will use this form for the illustration of Middlebook’s low entropy approach to analyzingsecond order circuits. The familiar Q (quality factor) represents how frequency selective thecircuit is and ωo can represent a resonance frequency or a reference frequency for the secondorder frequency response. The familiar series RLC circuit configured as a low pass network, shown in Figure 6, canbe

Conference Session

Innovations in ECE Education II

Collection

2007 Annual Conference & Exposition

Authors

Tianxia Zhao, Indiana-Purdue University-Fort Wayne

Tagged Divisions

Electrical and Computer

radiation.Introducing those math tools is essential to provide visual aids and better understanding of theEM concepts, and enhance students’ programming skills to solve engineering EM problems. (a) Vector algebra and calculusBoth Matlab and Mathematica can do vector analysis. In addition, Mathematica can find the EMfields in analytic form (with additional toolbox, Matlab can solve problems analytically too).One thing worth of mentioning is that both Mathematica and Matlab functions are case-sensitive.To use Mathematica, start with the command < Sqrt[x^2 +y^2], theta -> angle[x, y]}, {x, x1, x2}, {y, y1, y2}, opts]; ( example : PlotPolarVectorField[{r, Sin[q]}, {r, q}, {x, -1, 1}, {y, -1, 1

Conference Session

Design in the ECE Curriculum

Collection

2007 Annual Conference & Exposition

Authors

Wagdy Mahmoud, University of the District of Columbia

Tagged Divisions

Electrical and Computer

IDCT core can be designed using the same techniques used for designing the 1D-DCTcore.c) 2-D DCT: The 2-D DCT is used to compute the DCT coefficients of a N × M sub-image. The algorithm for computing the coefficients is based on the following equation [3] M −1 N −1 c ( p ) c (q )  (2m + 1)π p   (2n + 1)π q  XC pq = ∑ ∑ X N mn ⋅ ⋅ cos   ⋅ cos   (5) m=0 n=0 4  2M   2N The algorithms can be implemented using two 1-D DCT cores as shown in Figure 2. Block diagram to implement 2-D DCTThe 1-D DCT of each row of the sub-image is

Conference Session

Optical and Wireless Communication Systems

Collection

2007 Annual Conference & Exposition

Authors

Ernest Kim, University of San Diego

Tagged Divisions

Electrical and Computer

tool created byProfessor Fritz Dellsperger at the Berne University of Applied Sciences (Switzerland). Thedemonstration version of Berner Smith Chart program is used. This software tool offers a veryeasy graphical user interface that allows designers to select circuit elements and their values andallow use of stability, gain, VSWR and noise figure circles as well as map constant Q contours.A truly added bonus of this free demonstration software package is the ability to import deviceS-parameters to the designs. The S-parameters are imported at .s2p extension files identical tothat found in the Agilent ADS software package.The second free demonstration software package used is the Ansoft Designer SV (SV for StudentVersion). Ansoft Designer

Conference Session

Innovations in ECE Education III

Collection

2007 Annual Conference & Exposition

Authors

Don Millard, Rensselaer Polytechnic Institute; Mohamed Chouikha, Howard University; Frederick Berry, Rose-Hulman Institute of Technology

Tagged Divisions

Electrical and Computer

Studio’s export feature) – correlated with the 2nd order mathematical quantities (zeta, ωo, BW and Q) 4. Determine the relationship between resonance, Q and damping from experimenting with different component values – exploring the impedances and voltages/currents associated with a resonant condition, along with its potential application as a band pass/stop filter 5. Explore the correlation between the time and frequency domain responses; changing the component values and observing the effect on the bandwidth, cutoff frequency, phase shift and filter response (experimenting with taking the output across the R, L and C) 6. As a culminating exercise for students to synthesize these concepts, they are