IIT Roorkee has released the GATE 2025 ECE syllabus on the official website. The exam will be held on February 1, 2, 15 and 16, 2025. The Electronics And Communication Engineering syllabus includes 8 units. It is based on three different sections namely Engineering Mathematics, General Aptitude and Core ECE subjects.
- The paper includes 65 questions, of which approximately 45 are from the syllabus of the ECE core subject.
- Based on the previous year's trend it can be said that Engineering Mathematics, General Aptitude and Signals & Systems have the maximum weightage.
- General Aptitude has 15% weightage, and Engineering Mathematics, along with Signals and Systems, have 11% and 12% weightage, respectively.
Before appearing for the exam candidates must know about the entire syllabus. They can download the whole syllabus from the official website i.e. gate2025.iitr.ac.in. The PDF link of the syllabus is also available in this article.
GATE Electronics and Communication Engineering Syllabus
You can download the entire syllabus by clicking on the link provided below
| Subject | Download Link |
|---|---|
| Electronics And Communication Engineering Syllabus | Click here |
GATE 225 Electronics and Communication Engineering Syllabus
GATE ECE syllabus includes Engineering mathematics, seven core subjects from ECE and General Aptitude. Section-wise detailed syllabus is given below.
| Section No. | Section Name | Chapters | Topics |
|---|---|---|---|
| Section 1 | Engineering Mathematics | 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, evaluation of definite and improper integrals, partial derivatives, maxima and minima, multiple integrals, line, surface and volume integrals, Taylor series. | ||
| 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 Stokes’ theorems. | ||
| Complex Analysis | Analytic functions, Cauchy’s integral theorem, Cauchy’s integral formula, sequences, series, convergence tests, Taylor and Laurent series, residue theorem. | ||
| Probability and Statistics | Mean, median, mode, standard deviation, combinatorial probability, probability distributions, binomial distribution, Poisson distribution, exponential distribution, normal distribution, joint and conditional probability. | ||
| Section 2 | Networks, Signals and Systems | Circuit analysis | Node and mesh analysis, superposition, Thevenin's theorem, Norton’s theorem, reciprocity. 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 using 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 and properties, causality, stability, impulse response, convolution, poles and zeros, frequency response, group delay, phase delay. | ||
| Section 3 | Electronic Devices | Carrier transport | Energy bands in intrinsic and extrinsic semiconductors, equilibrium carrier concentration, direct and indirect band-gap semiconductors. 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. |
| Section 4 | Analog Circuits | Diode circuits | Clipping, clamping and rectifiers. |
| BJT and MOSFET amplifiers | Biassing, 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. | ||
| Section 5 | Digital Circuits | Number representations | Binary, integer and floating-point- numbers. 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. |
| Sequential circuits | Latches and flip-flops, counters, shift-registers, finite state machines, propagation delay, setup and hold time, critical path delay. | ||
| Data converters | Sample and hold circuits, ADCs and DACs | ||
| Semiconductor memories | ROM, SRAM, DRAM. | ||
| Computer organisation | Machine instructions and addressing modes, ALU, data-path and control unit, instruction pipelining | ||
| Section 6 | Control Systems | 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, super heterodyne receivers. | ||
| Information theory | Entropy, mutual information and channel capacity theorem. | ||
| Digital communications | PCM, DPCM, digital modulation schemes (ASK, PSK, FSK, QAM), bandwidth, inter-symbol interference, MAP, ML detection, matched filter receiver, SNR and BER. Fundamentals of error correction, Hamming codes, CRC. | ||
| Section 8 | Electromagnetics | Maxwell's equations | Differential and integral forms and their interpretation, boundary conditions, wave equation, Poynting vector. |
| Plane waves and properties | Reflection and refraction, polarisation, phase and group velocity, propagation through various media, skin depth. | ||
| Transmission lines | Equations, characteristic impedance, impedance matching, impedance transformation, S-parameters, Smith chart. Rectangular and circular waveguides, light propagation in optical fibres, dipole and monopole antennas, linear antenna arrays. | ||
| General Aptitude | Verbal Aptitude | Basic English grammar: tenses, articles, adjectives, prepositions, conjunctions, verb-noun agreement, and other parts of speech.Basic vocabulary: words, idioms, and phrases in context, reading and comprehension, Narrative sequencing. | |
| Quantitative Aptitude | Data interpretation: data graphs (bar graphs, pie charts, and other graphs representing data), 2- and 3-dimensional plots, maps, and tables Numerical computation and estimation: ratios, percentages, powers, exponents and logarithms, permutations and combinations, and series Mensuration and geometry Elementary statistics and probability. | ||
| Analytical Aptitude | Logic: deduction and induction, Analogy, Numerical relations and reasoning. | ||
| Spatial Aptitude | Transformation of shapes: translation, rotation, scaling, mirroring, assembling, and grouping paper folding, cutting, and patterns in 2 and 3 dimensions. | ||
GATE Electronics and Communication Engineering Chapter-Wise Weightage
Based on the previous years’ trends subject-wise weightage has been mentioned below in the table.
| Subjects | GATE 2024 | GATE 2023 | GATE 2022 | GATE 2021 | GATE 2020 |
|---|---|---|---|---|---|
| Engineering Mathematics | 11% | 11% | 13% | 12% | 12% |
| Network Theory | 8% | 8% | 8% | 11% | 6% |
| Electromagnetic Theory | 5% | 5% | 7% | 6% | 6% |
| Digital Circuits | 4% | 4% | 2% | 6% | 3% |
| Analog Circuits | 6% | 6% | 7% | 3% | 8% |
| Control Systems | 9% | 9% | 8% | 8% | 10% |
| Signals and Systems | 12% | 12% | 8% | 8% | 10% |
| Electrical Machines | 11% | 11% | 12% | 8% | 10% |
| Power Systems | 11% | 11% | 8% | 12% | 10% |
| Power Electronics | 6% | 6% | 11% | 9% | 8% |
| Measurements | 2% | 2% | 2% | 2% | 2% |
| General Aptitude | 15% | 15% | 15% | 15% | 15% |
GATE Electronics and Communication Engineering Chapter-Wise Questions
Subject-wise questions asked over the years can give you insight on the importance of each subject. A table is presented below with the number of questions asked from all the subjects over the years.
| Subjects | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Network Theory | 6 | 6 | 8 | 12 | 6 | 5 | 7 | 6 | 7 | 9 | 10 | 15 | 12 | 9 | 8 |
| Electric Devices | 12 | 7 | 8 | 6 | 11 | 15 | 12 | 10 | 10 | 8 | 10 | 3 | 7 | 9 | 9 |
| Analog Circuits | 10 | 10 | 10 | 7 | 10 | 10 | 8 | 12 | 9 | 11 | 7 | 14 | 8 | 10 | 14 |
| Digital Circuits | 11 | 7 | 11 | 9 | 9 | 5 | 11 | 9 | 9 | 9 | 8 | 5 | 6 | 9 | 9 |
| Signals and Systems | 10 | 12 | 6 | 10 | 6 | 10 | 5 | 12 | 9 | 12 | 11 | 10 | 8 | 11 | 7 |
| Control Systems | 8 | 9 | 7 | 5 | 10 | 10 | 8 | 7 | 8 | 10 | 8 | 9 | 9 | 9 | 9 |
| Communications | 11 | 12 | 12 | 13 | 11 | 12 | 13 | 9 | 10 | 9 | 11 | 12 | 10 | 10 | 10 |
| Electromagnetics | 8 | 11 | 10 | 10 | 9 | 9 | 8 | 7 | 10 | 9 | 10 | 7 | 14 | 10 | 8 |
| Engineering Mathematics | 9 | 11 | 13 | 13 | 13 | 9 | 13 | 13 | 13 | 8 | 10 | 10 | 11 | 8 | 11 |
| General Aptitude | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 |
GATE Electronics and Communication Engineering Important Topics
Based on GATE Paper Analysis for previous years, the important topics in the core subjects of the GATE Syllabus for ECE 2025 include Networks, Signals, and Systems, Electronic Devices, Analog Circuits etc. Subject-wise important topics are mentioned below for your reference.
| Subjects | Important Topics |
|---|---|
| Engineering mathematics |
|
| General Aptitude |
|
| Electronic Devices and Circuits |
|
| Control System |
|
| Analog Circuits |
|
| Digital Electronics |
|
| Electromagnet and Field Theory |
|
| Signal & Systems |
|
| Communications |
|
| Networks |
|
Suggested Books for GATE 2025 Electronics and Communication Engineering Exam
Some books are suggested below in the table to help you in your exam preparation. You are advised to choose books from this list according to your requirements.
| Subjects | Book Name |
|---|---|
| Network Theory and Circuit Analysis | Charles K. Alexander, Mathew N.O. Sadiku’s Fundamental of Electric CircuitsD. Roy. ChoudharyVan Valkenburg’s Network Analysis |
| Control System | Farid Golnaraghi Benjamin C. kuo’s Automatic control System Katsuhiko Ogata’s Modern Control EngineeringNagrath & Gopal |
| Electric Machines | P.S. Bimbhra’s Electrical MachineryNagrath & kothari’s Electrical MachinesStephen J. Chapman’s Electrical Machinery Fundamentals |
| Power System | C.L. WadhwaNagrath & Kothari’s Load flow analysis, stability studiesAshfaq hussainWilliam stevenson’s Power System Analysis |
| Power Electronics | P.S. BimbhraM.H. Rashid |
| Electrical and Electronic Measurements | A.K. SawhneyWilliam D. Cooper |
| Analog Electronics | Millman HalkiasSedra SmithBoylestad & Nashelsky |
| Digital Electronics | M. Morris Mano’s Combinational, Boolean |
| Signals and Systems | Alan V.Oppenhein, Alan S. willsky, with S. hamid nawabAnand Kumar |
| Electromagnetic Field Theory | Mathew N.O. Sadiku |
| Electronic Devices and Circuits | Donald A NeamanB.P. Lathi |
Preparation Tips for GATE 2025 Electronics and Communication Engineering Exam
What should be my revision strategy for GATE ECE?
Revision plays an important role in preparation so you must start your revision after completing each topic. You can start your revision from chapters like Circuit Theory, Control Theory and Signal Processing as these chapters are related to other chapters. Starting with these chapters can build the knowledge which you can apply when you study other chapters. Start with these chapters and then move towards complex subjects like Power Systems, Measurements, Machines etc.
What can be the subject sequence for ECE?
Determining the subject sequence can ease exam preparation. It can help you to complete the syllabus on time along with the revisions. A sequence of readings is suggested below.
| Category 1 Subject | Category 2 Subject | Category 3 Subject | Category 4 Subject |
|---|---|---|---|
| Engineering Mathematics | Control System | Communication | General Aptitude |
| Network Theory | Digital Circuits | Electromagnetics | - |
| Signals and Systems | Analog Circuits | - | - |
| EDC | - | - | - |
Should I practise PYQs and take tests?
Solving PYQs and taking tests not only gives you an idea of exam patterns but also enhances your speed and accuracy. After completing all the chapters in each subject you must solve PYQs and take online or offline tests. After the final revision, you must solve the entire question paper within a time limit. You can solve one to two papers per day till the exam day.
Frequently Asked Questions
Ques: Which order should I follow for GATE 2025 ECE preparation?
Ans: You must start from mathematics, aptitude, network, EDC, Signal & Systems and then move on to other chapters. If you want to take two subjects at a time then the combination should be Aptitude & Mathematics, network theory & EDC, analog & signals, Digital & control systems and EMT & communication.
Ques: Can I complete the entire ECE syllabus in two months?
Ans: Completing the entire ECE syllabus in just two months is challenging. You need to make a good strategy for it and dedicate at least 6-8 hours per day to study. You can start with easy topics like Circuit Theory, Control Theory and Signal Processing and then move on to complex topics like Machines and Power Systems.
*The article might have information for the previous academic years, which will be updated soon subject to the notification issued by the University/College.
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