DRDO STA-B (ECE) Entrance Exam Syllabus

Will you please share the ECE Syllabus of DRDO STA-B Entrance Exam??

[Arvind Kumar]

DRDO conducts CEPTAM Senior Technical Assistant (STA ‘B’) Exam. As per your request here I am sharing the ECE Syllabus of DRDO STA-B Entrance Exam

DRDO ECE - Electronics and Communication Engineering Syllabus:

Networks: Network graphs: matrices associated with graphs; incidence,
fundamental cut set and fundamental circuit matrices. Solution methods:
nodal and mesh analysis. Network theorems: superposition, Thevenin and
Norton’s maximum power transfer, Wye-Delta transformation. Steady state
sinusoidal analysis using phasors. Linear constant coefficient differential
equations; time domain analysis of simple RLC circuits, Solution of network
equations using Laplace transform: frequency domain analysis of RLC
circuits. 2-port network parameters: driving point and transfer functions.
State equations for networks.

Electronic Devices: Energy bands in silicon, intrinsic and extrinsic silicon.
Carrier transport in silicon: diffusion current, drift current, mobility, and
resistivity. Generation and recombination of carriers. p-n junction
diode, Zener diode, tunnel diode, BJT, JFET, MOS capacitor, MOSFET, LED,
p-I-n and avalanche photo diode, Basics of LASERs. Device technology:
integrated circuits fabrication process, oxidation, diffusion, ion
implantation, photolithography, n-tub, p-tub and twin-tub CMOS process.

Analog Circuits: Small Signal Equivalent circuits of diodes, BJTs, MOSFETs
and analog CMOS. Simple diode circuits, clipping, clamping, rectifier. Biasing
and bias stability of transistor and FET amplifiers.Amplifiers: single-and
multi-stage, differential and operational, feedback, and power. 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, 555 Timers. Power supplies.

Digital Circuits: Boolean algebra, minimization of Boolean functions; logic
gates; digital IC families (DTL,TTL, ECL, MOS, CMOS). Combinatorial
circuits: arithmetic circuits, code converters, multiplexers, decoders,
PROMs and PLAs. Sequential circuits: latches and flip-flops, counters and
shift-registers. Sample and hold circuits, ADCs, DACs. Semiconductor
memories. Microprocessor(8085): architecture, programming, memory
and I/O interfacing.

Signals and Systems: Definitions and properties of Laplace transform,
continuous-time and discrete-time Fourier series, continuous-time and
discrete-time Fourier Transform, DFT and FFT, z-transform. Sampling
Theorem. Linear Time-Invariant (LTI) Systems: definitions and properties;
causality, stability, impulse response, convolution, poles and zeros, parallel
and cascade structure, frequency response, group delay, phase delay.
Signal transmission through LTI systems.

Control Systems: Basic control system components; block diagrammatic
description, reduction of block diagrams. Open loop and closed loop
feedback systems and stability analysis of these systems. Signal flow
graphs and their use in determining transfer functions of systems; transient
and steady state analysis of LTI control systems and frequency response.
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 compensation, elements of Proportional-Integral-
Derivative (PID) control. State variable representation and Solution of state
equation of LTI control systems.

Communications: Random signals and noise: probability, random
variables, probability density function,autocorrelation, power spectral
density. Analog communication systems: amplitude and angle modulation
and demodulation systems, spectral analysis of these operations,
superheterodyne receivers; elements of hardware,realizations of analog
communication systems; signal-to-noise ratio (SNR) calculations for
amplitude modulation (AM) and frequency modulation (FM) for low noise
conditions. Fundamentals of information theory and channel capacity
theorem. Digital communication systems: pulse code modulation (PCM),
differential pulse code modulation (DPCM), digital modulation schemes:
amplitude, phase and frequency shift keying schemes (ASK, PSK, FSK),
matched filter receivers, bandwidth consideration and probability of error
calculations for these schemes. Basics of TDMA, FDMA and CDMA and GSM.

Electromagnetics: Elements of vector calculus: divergence and curl;
Gauss’ and Stokes’ theorems, Maxwell’s equations: differential and integral
forms. Wave equation, Poynting vector. Plane waves: propagation through
various media; reflection and refraction; phase and group velocity; skin
depth. Transmission lines: characteristic impedance; impedance
transformation; Smith chart; impedance matching; S parameters, pulse
excitation. Waveguides: modes in rectangular waveguides; boundary
conditions; cut-off frequencies; dispersion relations. Basics of propagation in
dielectric waveguide and optical fibers. Basics of Antennas: Dipole antennas;
radiation pattern; antenna gain