Electronics and Communication Engineering (ECE)

General Aptitude (GA): Common to All Papers Engineering

Verbal Ability

English grammar, sentence completion, verbal analogies, word groups, instructions, critical reasoning and verbal deduction.

Numerical Ability

Numerical computation, numerical estimation, numerical reasoning and data interpretation.

Engineering Mathematics

Linear Algebra

Matrix Algebra, Systems of linear equations, Eigen values and eigen vectors.


Mean value theorems, Theorems of integral calculus, Evaluation of definite and improper integrals, Partial Derivatives, Maxima and minima, Multiple integrals, Fourier series. Vector identities, Directional derivatives, Line, Surface and Volume integrals, Stokes, Gauss and Green’s theorems.

Differential equations

First order equation (linear and nonlinear), Higher order linear differential equations with constant coefficients, Method of variation of parameters, Cauchy’s and Euler’s equations, Initial and boundary value problems, Partial Differential Equations and variable separable method.

Complex variables

Analytic functions, Cauchy’s integral theorem and integral formula, Taylor’s and Laurent’ series, Residue theorem, solution integrals.

Probability and Statistics

Sampling theorems, Conditional probability, Mean, median, mode and standard deviation, Random variables, Discrete and continuous distributions, Poisson, Normal and Binomial distribution, Correlation and regression analysis.

Numerical Methods

Solutions of non-linear algebraic equations, single and multi-step methods for differential equations.

Transform Theory

Fourier transform, Laplace transform, Z-transform.

Electronics and Communication Engineering


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 usingLaplace 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 shiftregisters.Sample and hold circuits, ADCs, DACs. Semiconductor memories. Microprocessor(8085):architecture, programming, memory and I/O interfacing.

Signals and Systems

Definitions and properties ofLaplace transform, continuous-time and discrete-timeFourier 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, groupdelay, phase delay. Signal transmission through LTI systems.

Control Systems

Basic control system components; block diagrammatic description, reduction of blockdiagrams. Open loop and closed loop (feedback) systems and stability analysis of these systems. Signalflow graphs and their use in determining transfer functions of systems; transient and steady state analysisof 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 oflead and lag compensation, elements of Proportional-Integral-Derivative (PID) control. State variablerepresentation and solution of state equation of LTI control systems.


Random signals and noise: probability, random variables, probability density function,autocorrelation, power spectral density. Analog communication systems: amplitude and angle modulationand demodulation systems, spectral analysis of these operations, superheterodyne receivers; elements ofhardware, realizations of analog communication systems; signal-to-noise ratio (SNR) calculations foramplitude modulation (AM) and frequency modulation (FM) for low noise conditions. Fundamentals ofinformation 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 andprobability of error calculations for these schemes. Basics of TDMA, FDMA and CDMA and GSM.


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; impedancematching; S parameters, pulse excitation. Waveguides: modes in rectangular waveguides; boundaryconditions; cut-off frequencies; dispersion relations. Basics of propagation in dielectric waveguide andoptical fibers. Basics of Antennas: Dipole antennas; radiation pattern; antenna gain.

Reference Books :



Reference Books



Higher Engineering Mathematics – Dr. BS Grewal
Advance Engineering Mathematics –  Erwin Kreyszig
Advance Engineering Mathematics – Dr. HK Dass

  Signals and Systems

Signals & Systems – Oppenheim & Schafer
Signals & Systems – Simon Hykin & Barry Van Veen
Discrete Time Signal Processing – Oppenheim & Schafer 
Analog & Digital signal Processing- Ashok Ambarder 
Digital Signal Processing – Proakis

  Control Systems

Control System Engg. - Nagrath & Gopal
Automatic Control Systems - Benjamin C Kuo
Modern Control System – Katsuhiko Ogata


Network Analysis –Van Valkenburg
Networks & System – D Roy & Choudhary
Engineering circuit analysis – Hayt & Kammerly

  Electronic Devices

Semiconductor devices – David Neamen
Semiconductor devices – Kano
Solid Sate devices - Suresh Babu
Electronics devices and circuits – Millman & Halkias

    Analog Circuits

Micro Electronics circuit – Sedra  & Smith
Integrated Electronics : Analog & Digital circuits and system – Millman & Halkias
Electronics devices and circuits – Boylestead
Op-Amp & Linear Integrated Circuits – Gaikwad
Linear Integrated circuits – Godse & Bakshi
Micro Electronic Circuits – Neamen
Micro electronic circuits - Rashid

  Digital circuits

Digital Electronics – Morris Mano 
Digital principles & Design  - Donald Givone 
Digital circuits – Taub & Schilling
Microprocessor – Ramesh Gaonker


Electromagnetic Waves and Radiating Systems - E.C. Jordan and K.G. Balsain 
Electromagnetic Waves and Radiating Systems - Sadiku 
Engg Electromagnetics – William Hayt
Antenna And Wave Propagation KD Prasad
Microwave devices & circuits -  Lio


Communication systems – Simon Hykin
Principals of communication systems – Taub & Schilling
An introduction to Analog and Digital Communications- Simon Hykin
Modern & digital communication system – BP Lathi
Electronic communication system  - Kennedy 
Analog Communication – Proakis
Digital Communication- Proakis



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