GATE ECE Syllabus

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GATE ECE Syllabus

Are you passionate about Electronics and Communication Engineering? Do you plan on taking the Graduate Aptitude Test in Engineering (GATE) this year? Electronics and Communication Engineering is one of the most prevalent Engineering fields for which a huge number of applications are received for the GATE exam. Since there are so many aspirants, the GATE ECE exam becomes highly competitive and difficult to crack. Nevertheless, getting acquainted with the 2021 GATE ECE syllabus can give you a great head start! Here is everything you need to know about the 2021 GATE ECE syllabus. From a detailed section-wise syllabus to the qualifying cut-off, we have got you covered!

GATE ECE Overview

Carefully go through the GATE ECE overview before diving into the 202 GATE ECE syllabus.

Mode of Exam Online (Computer-based mode)
Sections Three
Time Duration 3 hours
Total Questions 65
Question type MCQ and NAT (Numerical Answer Type)
Negative Marking Only for MCQs: ⅓ will be cut for 1-mark questions, ⅔ will be cut for 2-mark questions
Total Marks 100


Refer to the below mentioned PDF-

GATE ECE Syllabus 2021

The 2021 GATE ECE is similar to the 3rd to 8th-semester Electronics and Communications Engineering syllabus. Thus, candidates who have carefully gone through and completed their engineering syllabus may crack the GATE ECE 2021 examination with great ease. The 2021 GATE ECE includes 3 sections: General Aptitude, Engineering Mathematics, and Subject-specific section. Given below is a detailed section-wise GATE ECE syllabus: 

General Aptitude

This section has questions based on Verbal Ability and Numerical Ability. The various topics included in the GATE ECE syllabus for General Aptitude are as follows:

Verbal Ability:

  1. English grammar,
  2. Sentence completion,
  3. Verbal analogies,
  4. Word groups,
  5. Critical reasoning and
  6. Verbal deduction.

Numerical Ability:

  1. Computation of numerical quantities,
  2. Estimating numerical values,
  3. Numerical reasoning and
  4. Data interpretation.

Engineering Mathematics

The GATE ECE syllabus for Engineering Mathematics is as follows:

  • Linear Algebra: Vector space, basis, linear dependence and independence, matrix algebra, eigenvalues and eigenvectors, rank, solution of linear equations – existence and uniqueness.
  • Calculus: Mean value theorems, theorems of integral calculus, partial derivatives evaluation of definite and improper integrals, maxima and minima problems, multiple integrals, line, surface and volume integrals, the Taylor series.
  • Differential Equations: First order equations (linear and nonlinear), higher-order linear differential equations, partial differential equations, variable separable method and application, initial and boundary value problems. Cauchy’s and Euler’s equations, the technique of solution through a variety of parameters, complementary function as well as particular integral. 
  • 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.
  • Probability and Statistics: Mean, median, mode, standard deviation problems, combinatorial probability, binomial distribution, probability distributions, Poisson distribution, exponential distribution, normal distribution, joint as well as conditional probability.

Subject Specific Section

The subject-specific section includes topics from Networks, Signals and Systems, Electronic Devices, Analog Circuits, Digital Circuits, Control Systems, Communications, and Electromagnetic.

Networks, Signals, and Systems

  • Circuit analysis: Node and mesh analysis, Thevenin’s theorem, Norton’s theorem, superposition, and reciprocity problems. 
  • Sinusoidal steady-state analysis: phasors, complex power, maximum power transfer. 
  • Time and frequency domain analysis of linear circuits: RL, RC and RLC circuits. Solution of network equations through Laplace transform.
  • Linear 2-port network parameters, wye-delta transformation.
  • Continuous-time signals: Fourier series and Fourier transform, sampling theorem and applications.
  • Discrete-time signals: DTFT, DFT, z-transform, discrete-time processing of continuous-time signals. 
  • LTI systems: Definition, properties, causality, stability, impulse response, convolution, poles and zeroes, frequency response, group delay, and phase delay.

Electronic Devices

  • Energy bands in extrinsic and intrinsic semiconductors, equilibrium carrier concentration, direct and indirect band-gap semiconductors.
  • 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, photodiode and solar cell.

Analog Circuits

  • Diode circuits: Clipping, clamping and rectifiers. 
  • BJT and MOSFET amplifiers: Biasing, AC coupling, small-signal analysis, frequency response.
  • Current mirrors and differential amplifiers. 
  • Op-amp circuits: Amplifiers, summers, differentiators, integrators, active filters, Schmitt triggers and oscillators.

Digital Circuits

  • Number representations: binary, integer and floating-point- numbers. 
  • Combinatorial circuits: Boolean algebra, minimization of functions via Boolean identities and Karnaugh map, logic gates and their static CMOS implementations, arithmetic circuits, code converters, multiplexers, and decoders.
  • Sequential circuits: Latches and flip-flops, counters, shift-registers, finite state machines, propagation delay, setup and hold time, and critical path delay.
  • Data converters: sample and hold circuits, ADCs and DACs.
  • Semiconductor memories: ROM, SRAM, DRAM.
  • Computer organization: Machine instructions, addressing modes, ALU, data path, control unit, and instruction pipelining.

Control Systems

  • Basic control system components; The 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 as well as solution of state equation of LTI systems.


  • Random processes: Autocorrelation and power spectral density, properties of white noise, filtering of random signals via LTI systems.
  • Analog communications: amplitude modulation and demodulation, angle modulation and demodulation, spectra of AM and FM, superheterodyne receivers.
  • Information theory: Entropy, mutual information and channel capacity theorem.
  • Digital communications: PCM, DPCM, digital modulation schemes, bandwidth, inter-symbol interference, MAP, ML detection, matched filter receiver, SNR and BER.
  • Fundamentals of error correction, Hamming codes, CRC.


  • Maxwell’s equations: differential and integral forms as well as their interpretation, boundary conditions, wave equation, and 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, and the Smith chart.
  • Rectangular and circular waveguides, light propagation in optical fibres, dipole and monopole antennas, linear antenna arrays.

GATE ECE Subject-Wise Weightage

Now that we have understood the GATE ECE syllabus, let us now take a look at the subject wise weightage of the exam-

S. No Topic Weightage in Marks
1 Network Theory 11.25
2 Electronic Devices & Circuits 7.25
3 Analog Circuits 11.75
4 Digital Circuits 6
5 Signal & Systems 9
6 Control Systems 9
7 Communication Systems 10.75
8 EMT 9.5
9 Micro Processors 1.5
10 Engineering Maths 10.5
11 General Aptitude 15

Top 10 Books for GATE ECE Preparation

Here is a subject-wise list of books for ECE through which you can thoroughly prepare the GATE ECE syllabus- 

GATE Preparation Books for ECE Author
Network Analysis Van Valken Burg
Solutions of Network Analysis GK Publications
Engg. Circuit Analysis Hayt and Kemmerly
Network Analysis Soni and Gupta
Graph Theory Narsing Deo (Cutset and Others)
Circuit Theory Chakravarthy
Electric Circuits Schaum’s Series
Network Theory Prof Yoganarasimhan
Electronic Devices Circuits Boylested and Neshelsky
Microelectronic Circuits Sedra and Smith


What is the GATE ECE Syllabus?

The GATE ECE syllabus includes the Control System, Analog Circuits, Digital Circuits, Engineering Maths, and more; check it above.

Is GATE ECE tough?

According to the 2020 statistics, the paper on a whole is between moderate to tough.

Is Microprocessor a part of the GATE ECE syllabus?

For 2021, Microprocessor is not a part of the syllabus.

Thus, we hope that through this blog, now you are equipped with the GATE ECE syllabus for 2021. The preparation to study overseas can be exhausting as well as intimidating. If you find yourself clueless or in need of guidance, get in touch with experts at Leverage Edu. They will help you overcome every academic struggle easily!

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