GATE 2020 Syllabus for ECE- The complete syllabus of Electronics and Communications Engineering paper of GATE 2020 Examination has been updated by IIT Guwahati on its official website. GATE 2020 Examination will be held in the month of February 2020. The official information brochure has been released online.

The GATE ECE Exam Pattern will consist of 65 questions for a total of 100 marks, wherein 15% of the total marks will comprise of questions from General Aptitude, 15% from Engineering Mathematics questions and the rest 70% marks from Electronics and Communication Engineering.

GATE 2020 Syllabus for ECE

Section 1- Engineering Mathematics

• Linear Algebra- Vector space, basis, eigen values and eigen vectors, linear dependence and independence, rank, matrix algebra, solution of linear equations – existence and uniqueness.
• Calculus- Mean value theorems, evaluation of definite and improper integrals, theorems of integral calculus, partial derivatives, multiple integrals, line, surface and volume integrals, Taylor series, maxima and minima.
• Differential Equations- First order equations (linear and nonlinear), higher order linear differential equations, Cauchy's and Euler's equations, methods of solution using variation of parameters, complementary function and particular integral, partial differential equations, variable separable method, initial and boundary value problems.
• Vector Analysis- Vectors in plane and space, vector operations, gradient, divergence and curl, Gauss's, Green's and Stoke's theorems.
• Complex Analysis- Analytic functions, Cauchy's integral theorem, Cauchy's integral formula; Taylor's and Laurent's series, residue theorem.
• Numerical Methods- Solution of nonlinear equations, single and multi-step methods for differential equations, convergence criteria.
• Probability and Statistics- Mean, median, mode and standard deviation; combinatorial probability, probability distribution functions - binomial, Poisson, exponential and normal; Joint and conditional probability; Correlation and regression analysis.

Section 2- Networks, Signals and Systems

• Network solution methods- nodal and mesh analysis; Network theorems: superposition, and Norton’s, maximum power transfer; Wye‐Delta transformation; Steady stat sinusoidal analysis using phasors; Time domain analysis of simple linear circuits; Solution of network equations using Laplace transform; Frequency domain analysis of RLC circuits; Linear 2‐port network parameters: driving point and transfer functions; State equations for networks.
• Continuous-time signals- Fourier series and Fourier transform representations, sampling theorem and applications; Discrete-time signals: discrete-time Fourier transform (DTFT),DFT, FFT, Z-transform, interpolation of discrete-time signals;
• LTI systems- definition and properties, causality, stability, impulse response, convolution, poles and zeros, parallel and cascade structure, frequency response, group delay, phase delay, digital filter design techniques.

Section 3- Electronic Devices

• Energy bands in intrinsic and extrinsic silicon;
• Carrier transport: diffusion current, drift current, mobility and resistivity; Generation and recombination of carriers; Poisson and continuity equations;
• P-N junction, Zener diode, BJT, MOS capacitor, MOSFET, LED, photo diode and solar cell;
• Integrated circuit fabrication process: diffusion, oxidation, photolithography, ion implantation, and twin-tub CMOS process.

Section 4- Analog Circuits

• Small signal equivalent circuits of diodes, BJTs and MOSFETs; Simple diode circuits: clipping, clamping and rectifiers.
• Single-stage BJT and MOSFET amplifiers: biasing, bias stability, mid-frequency small signal analysis and frequency response; BJT and MOSFET amplifiers: multi-stage, differential, feedback, power and operational; Simple op-amp circuits; Active filters.
• Sinusoidal oscillators: criterion for oscillation, single-transistor and opamp configurations; Function generators, wave-shaping circuits and 555 timers; Voltage reference circuits; Power supplies: ripple removal and regulation.

Section 5- Digital Circuits

• Number systems; Combinatorial circuits: Boolean algebra, minimization of functions using Boolean identities and Karnaugh map, logic gates and their static CMOS implementations, arithmetic circuits, code converters, multiplexers, decoders and PLAs;
• Sequential circuits: latches and flip‐flops, counters, shift‐registers and finite state machines;
• Data converters: sample and hold circuits, ADCs and DACs; Semiconductor memories: ROM, SRAM, DRAM; 8-bit microprocessor (8085): architecture, programming, memory and I/O interfacing.

Section 6- Control Systems

Basic control system components; Feedback principle; Transfer function; Block diagram representation; Signal flow graph; Transient and steady-state analysis of LTI systems; Frequency response; Routh-Hurwitz and Nyquist stability criteria; Bode and root-locus plots; Lag, lead and lag-lead compensation; State variable model and solution of state equation of LTI systems.

Section 7- Communications

• Random processes- autocorrelation and power spectral density, properties of white noise, filtering of random signals through LTI systems;
• Analog communications- amplitude modulation and demodulation, angle modulation and demodulation, spectra of AM and FM, superheterodyne receivers, circuits for analog communications; Information theory: entropy, mutual information and channel capacity theorem;
• Digital communications: PCM, DPCM, digital modulation schemes, amplitude, phase and frequency shift keying (ASK, PSK, FSK), QAM, MAP and ML decoding, matched filter receiver, calculation of bandwidth, SNR and BER for digital modulation; Fundamentals of error correction, Hamming codes; Timing and frequency synchronization, inter-symbol interference and its mitigation; Basics of TDMA, FDMA and CDMA.

Section 8: Electromagnetics

• Electrostatics; Maxwell’s equations: differential and integral forms and their interpretation, boundary conditions, wave equation, Poynting vector; Plane waves and properties: reflection and refraction, polarization, phase and group velocity, propagation through various media, skin depth;
• Transmission lines- equations, characteristic impedance, impedance matching, impedance transformation, S-parameters, Smith chart; Waveguides: modes, boundary conditions, cut-off frequencies, dispersion relations;
• Antennas- antenna types, radiation pattern, gain and directivity, return loss, antenna arrays; Basics of radar; Light propagation in optical fibers

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