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COMMUNICATION NETWORK AND TRANSMISSION LINE (EC-605)

Unit – I
Characteristic Parameters of symmetrical and asymmetrical two port networks and their design: image impedance,iterative impedance, characteristic impedance, propagation coefficient, image transfer coefficient ,iterative transfercoefficient, Lattice and Bridged-T networks, reactive matching networks, matching techniques, Insertion Loss,symmetrical and asymmetrical attenuators and their design.

Unit – II
Passive LC Filters: Analysis and design of Low pass, high pass, band pass and band elimination filters, m-derived filters, composite filters, Filter specifications, Butterworth approximation, Chebyshev approximation, elliptic functionapproximation, frequency transformation.

Unit – III
Positive real function, LC, RL, RC, and RLC network synthesis, Foster and Cauer network, minimum positive real function, Brune’s method, Bott-Duffin method, Synthesis-Coefficient.

Unit – IV
Transmission line fundamentals: Lumped parameter equivalent, voltage and current on a transmission line, infinite line, characteristic impedance and propagation constant, waveform distortion, attenuation and phase equalizers,distortionless line, loading, liner reflection on a line, reflection coefficient, input and transfer impedances, open circuit and short circuit line, reflection factors, reflection loss, insertion loss, T and π equivalents of a line, location of line fault. Construction and design of two wire line and coaxial cable.

Unit – V
Line at radio frequencies, parameters of line and coaxial cable at radio frequencies, dissipationless line, voltage and current on a dissipationless line, standing waves, standing wave ratio, input impedance of open circuit and short circuit, power and impedance measurement on lines, eighthwave, quarter-wave and half wave line, circle diagram,Smith chart, solution.

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