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© McGraw-Hill Companies 2011 1
Electromagnetic Theory (EE-380)
Instructor:
Engr. Dr. Waqas Tariq Toor
Associate Professor
Electrical Engineering Department
UET Lahore, Narowal Campus
© McGraw-Hill Companies
© McGraw-Hill Companies 2011 2
Transmission Line Description
© McGraw-Hill Companies 2011 3
Wave Equations
For R=G=0
© McGraw-Hill Companies 2011 4
Components of voltage waveforms
© McGraw-Hill Companies 2011 5
Phasor form
© McGraw-Hill Companies 2011 6
Solutions of wave equations
© McGraw-Hill Companies 2011 7
Example
© McGraw-Hill Companies 2011 8
Low Loss Propagation
© McGraw-Hill Companies 2011 9
Low Loss Propagation
© McGraw-Hill Companies 2011 10
Wave Reflection at Discontinuitites
© McGraw-Hill Companies 2011 11
Wave Reflections at Discontinuitites
© McGraw-Hill Companies 2011 12
Example
© McGraw-Hill Companies 2011 13
Phasor form
© McGraw-Hill Companies 2011 14
Voltage Standing Wave Ratio
© McGraw-Hill Companies 2011 15
VSWR
© McGraw-Hill Companies 2011 16
Transmission Line of Finite Length
© McGraw-Hill Companies 2011 17
Derivation
© McGraw-Hill Companies 2011 18
Derivation
© McGraw-Hill Companies 2011 19
Example
© McGraw-Hill Companies 2011 20
Example

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Chap 10.ppt