|
Unit1.
IMPEDANCE AND ADMITTANCE FUNCTIONS: The concept of complex frequency,
transform impedance and admittance, series and parallel combinations.
NETWORK FUNCTIONS: Terminals and terminal pairs, driving point impedance
transfer functions, poles and zeros. Restrictions on pole and zero
location in s-plane. Time domain behavior from pole and zero plot.
Procedure for finding network functions for general two terminal pair
networks.
Unit2. NETWORK SYNTHESIS: Hurwitz polynomial, positive real
functions, reactive networks. Separation property for reactive networks.
The four-reactance function forms, specification for reactance function.
Foster form of reactance networks. Cauer form of reactance networks.
Synthesis of R-L and R-C networks in Foster and Cauer forms.
Unit3. TWO PORT GENERAL NETWORKS: Two port parameters (impedance,
admittance, hybrid, ABCD parameters) and their inter relations.
Equivalence of two ports. Transformer equivalent, inter connection of two
port networks. The ladder network, image impedance, image transfer
function, application to L-C network, attenuation and phase shift in
symmetrical T and pi networks.
Unit4. TWO PORT REACTIVE NETWORK (FILTERS): Constant K filters. The
m-derived filter. Image impedance of m-derived half (or L) sections,
composite filters. Band pass and band elimination filters. The problem of
termination, lattice filters, Barlett’s bisection theorem. Introduction to
active filters.
Unit5. COUPLED CIRCUITS: Conductively coupled circuits. Mutual
impedance, magnetic coupling, mutual inductance, co-efficient of magnetic
coupling, circuit directions and sign of mutual inductance, mutual
inductance between portions of the same circuit, mutual inductance between
parallel branches, transferred impedance. Transformer equivalent
inductively and conductively coupled circuits; Resonance in Single tuned
and Double tuned circuits, effect of coefficient of coupling.
|