Friday, June 22, 2012
EC2305 TRANSMISSION LINES AND WAVEGUIDES Syllabus for ECE 5th Semester - Anna University
EC2305 TRANSMISSION LINES AND
WAVEGUIDES L T P C
3 1 0
4
AIM
To lay a strong foundation on the theory of transmission lines and wave guides by highlighting their applications.
OBJECTIVES
·
To become familiar with propagation of signals through lines
· Understand signal propagation at Radio frequencies
· Understand radio propagation in guided systems
· To become familiar with resonators
UNIT I
FILTERS
9
The neper - the decibel - Characteristic impedance of Symmetrical Networks – Current
and
voltage ratios - Propogation constant, - Properties
of Symmetrical Networks - Filter
fundamentals – Pass and
Stop bands. Behaviour of
the
Characteristic
impedance.
Constant K Filters - Low pass, High pass band, pass band elimination filters - m -
derived sections – Filter circuit design – Filter performance – Crystal Filters.
UNIT II TRANSMISSION LINE PARAMETERS
9
A line of cascaded T
sections - Transmission lines - General Solution, Physical Significance of the equations, the infinite line, wavelength, velocity, propagation,
Distortion line, the telephone cable, Reflection on a line not terminated
in Zo, Reflection Coefficient, Open and short circuited lines, Insertion
loss.
UNIT III
THE LINE AT RADIO FREQUENCY
9
Parameters of open wire line and Coaxial cable at RF – Line constants
for
dissipation - voltages
and currents
on the dissipation less line - standing waves
– nodes - standing wave ratio - input impedance of open and short circuited lines - power and impedance
measurement on lines – l / 4 line, Impedance matching – single and double-stub matching circle diagram, smith chart and its
applications – Problem solving using Smith
chart.
UNIT IV GUIDED
WAVES BETWEEN PARALLEL PLANES 9
Application of the restrictions to Maxwell’s equations – transmission of TM waves
between Parallel plans – Transmission of TE waves between Parallel
planes.
Transmission of TEM
waves between
Parallel
planes – Manner of
wave
travel. Velocities of the waves – characteristic impedance -
Attenuators
UNIT V
WAVEGUIDES
9
Application of Maxwell’s equations to the rectangular waveguide. TM
waves in Rectangular
guide. TE waves in Rectangular waveguide – Cylindrical waveguides. The TEM wave in coaxial lines. Excitation of wave guides. Guide termination and resonant
cavities.
TEXT BOOK
L: 45, T: 15, TOTAL= 60 PERIODS
1. John D.Ryder, "Networks, lines and fields", Prentice Hall of India, 2nd Edition, 2006.
REFERENCES
1. E.C.Jordan, K.G. Balmain: “E.M.Waves & Radiating Systems”, Pearson Education,
2006.
2. Joseph Edminister, Schaum’s Series, Electromegnetics, TMH, 2007.
3. G S N Raju,
Electromagnetic
Field Theory
and
Transmission Lines, Pearson
Education, 2006.
By Vinoth
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