Electronics and
Telecommunication
Gate Syllabus for Electronics And Communication
NETWORK:
Network graphs:
matrices associated with graphs; incidence,
fundamental cut set and fundamental circuit matrices. Solution
methodsl; nodal and mesh analysis. Network theorems;
superposition, Thevenin and Nortan's, maximum power transfer,
wye-delta transformation, steady state sinusoidal analysis using
phasors, fourier series, linear constant coefficient differential
and difference equations; time domain analysis of simple
RLC circuits. laplace and Z transforms:
frequency domain analysis of RLC
circuits, convolution,2-port network parameters, driving point
and transfer functions, state equation for
networks.
ANALOG
CIRCUITS:
characteristics and equivalent circuits(large
and small singnal) of diodes,BJT,JFETs
and MOSFET simple diode circuits:
clipping, clamping, rectifier, biasing and bias stability of
transistior and FET amplifiers.
Amplifiers: single and multi-stage, differential, operational,
feedback and power. Analysis of amplifers; frequency response of
amplifiers. Simple op-amp circuits. Filters. Sinusoidal
oscillators; criterion for oscillation; single-transistor and
op-amp configurations. Function generators and wave-shaping
circuits, Power supplies.
DIGITAL
CIRCUITS:
Boolean algebra; minimization of boolean
functions; logic gates; digital IC families( DTL,TTL,ECL,MOS,CMOS). Combinational circuits: airthmetic circuits,
code converters, multiplexers and decoders. Sequential circuits:
latches and flip-flops, counters and shift-registers.
Comparators, timers, multivibrators. Sample and hold circuits,
ADCs and DACs. Semiconductor memories. Microprocessor (8085):
architecture, programming, memory and I/O
interfacing.
CONTROL
SYSTEMS:
Basic control system components; block
diagrammatic descripption,reduction of block diagrams,properties
of systems: linearity,time-invariance,stability,causality.Open
loop and closed loop (feedback) systems.Special properties of
linear time- invariance(LTI)
systems-transfer function, impulse responce,poles,zeros,their
significance, and stability analysis of these systems. Signal
flow graphs and their use in determining transfer functions of
systems; transient and steaty state analysis of LTI system and frequency responce. Tools and
techniques for LTI control system
analysis: Root, loci, Routh_Hurwitz criterion, Bode and Nyquist
plots; Control system compensators: elements of lead and lag
compensations, elements ofPropotional-integral.
-Derivative(PID)
control. State variable representation and solution of state
equation for LTI
systems.
COMMUNICATION SYSTEMS:
Fourier analysis of signals - amplitude, phase
and power spectrum, auto-correlation and cross-correlation and
their Fourier transforms. Signal transmission through linear
time-invariant(LTI) systems,impulse
responce and frequency responce,group delay phase delay. Analog
modulation systems-amplitude and angle modulation and
demodulation systems, spectral analysis of these operations,
superheterodyne receivers, elements of hardwares realizations of
analog communications systems. Basic sampling theorems. Pulse
code modulation(PCM), differential
pulse code modulation(DPCM), delta
modulation(DM). Digital modulation schemes: amplitude, phase and
frequency shift keying schemes(ASK,PSK,FSK). Multiplexing - time division and frequency
division. Additive Gaussian noise; characterization using
correlation, probability density function(PDF),power spectral density(PSD). Signal- to-noise rasio(SNR) calculations for amplitude modulation(AM) and
frequency modulation(FM) for low noise
conditions.
ELECTROMAGNETICS:
Elements of vector calculus: gradient,
dicergence and curl; Gauss and strokes theorems, maxwells
equation: differential and integral forms. Wave equation.
Poynting vector. Plane wavwes: propagation through various media;
reflection and refraction; phase and group velocity; skin depth
Transmission lines: Characteristic impedence; impedence
transformation; smith chart; impedence matching pulse excitation.
Wave guides: modes in rectangular waveguides; boundary
conditions; cutt-off frequencies; dipersion relations. Antennas;
Dipole antennas; antenna arrays; radiation pattern; reciprocity
theorem; antenna gain.
Post Comments