TY - GEN
T1 - Understanding transmission line impedance matching using neural networks and PowerPoint
AU - Hemminger, Thomas L.
PY - 2005
Y1 - 2005
N2 - Impedance matching between transmission lines and antennas is an important and fundamental concept in electromagnetic theory. It is frequently performed with Smith charts or relatively complex formulas, but mathematical methods can yield unanticipated results unless the student has a solid grasp of the underlying theory. Unfortunately, students rarely show interest in graphical techniques and Smith charts can be difficult to use because of optical effects generated by the gridlines. This paper presents an alternative method of teaching single stub impedance matching by permitting students to verify their results from the Smith chart with a neural network. This technology provides instant feedback for most single stub problems, and is re-enforced through web-based PowerPoint demonstrations. The neural network presents the solution, not the procedure, so it is the responsibility of the student to seek help from the instructor or use the PowerPoint tutorial. Student comments have been very positive, and course evaluations have improved.
AB - Impedance matching between transmission lines and antennas is an important and fundamental concept in electromagnetic theory. It is frequently performed with Smith charts or relatively complex formulas, but mathematical methods can yield unanticipated results unless the student has a solid grasp of the underlying theory. Unfortunately, students rarely show interest in graphical techniques and Smith charts can be difficult to use because of optical effects generated by the gridlines. This paper presents an alternative method of teaching single stub impedance matching by permitting students to verify their results from the Smith chart with a neural network. This technology provides instant feedback for most single stub problems, and is re-enforced through web-based PowerPoint demonstrations. The neural network presents the solution, not the procedure, so it is the responsibility of the student to seek help from the instructor or use the PowerPoint tutorial. Student comments have been very positive, and course evaluations have improved.
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M3 - Conference contribution
AN - SCOPUS:33947221064
SN - 0780390776
SN - 9780780390775
T3 - Proceedings - Frontiers in Education Conference, FIE
SP - T4E-18-T4E-23
BT - Proceedings - Frontiers in Education, 35th Annual Conference
T2 - Frontiers in Education - 35th Annual Conference 2005, FIE' 05
Y2 - 19 October 2005 through 22 October 2005
ER -