GATE Electronics and Communication Engineering (ECE) Syllabus 2025

GATE ECE Syllabus: GATE ECE Syllabus contains essential topics for the GATE exam. However, taking the entire syllabus into account will help aspirants achieve good results. Continue reading below to see a detailed view of all the topics, sections, and weightage for GATE ECE syllabus.

GATE ECE Syllabus: The first step to starting your GATE prep

Aspirants can prepare thoroughly for the GATE exam for Electronics and Communication Engineering if they know the entire GATE ECE Syllabus 2025. Depending on the GATE ECE Syllabus and the topics contained inside, students can prepare better for the exam by choosing more important topics.

The concepts and topics under Electronics and Communication Engineering have been divided into eight key sections based on the latest GATE ECE Syllabus 2025. The key topics, as per the GATE Exam Syllabus for ECE, include communications and electromagnetics, engineering mathematics, signals and systems, networks, analogue circuits, electronics devices, control systems, and digital circuits. 

GATE ECE Syllabus 2025 – All key topics and sections

Section 1 – Engineering and Mathematics

Calculus: The topics covered in this section include the evaluation of definite and improper integrals, mean value theorems, theorems of integral calculus, maxima and minima, partial derivatives, Taylor series, multiple integrals, line, surface, and volume integrals, and partial derivatives.

Linear Algebra: Linear algebra covers the following topics: linear dependence and independence, vector space, basis, rank, matrix algebra, Eigenvectors, and Eigenvalues, and solving linear equations—uniqueness and Existence.

Vector Analysis: The topics included in this section are vector operations, vectors in space and plane, divergence and curl, gradient, Gauss’s and Green’s and Strokes’ Theorem. 

Statistics and Probability:  The topics covered in this section are median, mean, mode, probability distributions, standard deviation, combinational probability, Poisson distribution, binomial distribution, normal distribution, exponential distribution, and joint and conditional probability. 

Differential Equations: The topics of Differential Equations are high-order linear differential equations, first-order equations (linear and nonlinear), methods of solution using a variation of parameters, Cauchy’s and Euler’s equations, partial different equations, complementary function and particular integral, initial and boundary value problems, and variable separable method. 

Complex Analysis: The topics covered in the complex analysis section are Cauchy’s integral theorem, analytic function, Cauchy’s integral formula, series, sequences, residue theorem, convergence tests, and Taylor and Laurent series. 

Section 2 – Signals, Networks, and Systems

Continuous-time Signals: This section covers the Fourier series and Fourier Transform, applications, and sampling theorem. 

Circuit Analysis: The topics covered under the circuit analysis section comprise superposition, node and mesh analysis, reciprocity, Thevenin’s theorem, and Norton’s theorem. Some other topics covered are Sinusoidal steady state analysis, which includes sections like maximum power transfer, phasors, and complex power. 

Frequency and Time Domain Analysis of Linear Circuits: RC, RL, and RLC Circuits, and solution of network equations using Laplace transform. 

Discrete-Time Signals: The topics that are part of this section are DFT, DTFT, z-transform, and discrete-time processing of continuous-time signals. 

LTI Systems: This section covers casualty, definition and properties, poles and zeroes, impulse response, convolution, group delay, frequency response, and phase delay. 

Time and frequency domain analysis of linear circuits: This section covers RC, RL, and RLC circuits and the solution of network equations using the Laplace transform. 

Section 3 – Electronic Devices

Carrier Transport: Drift current, Diffusion current, Resistivity and Mobility, Generation, and Recombination of Carriers, and Poisson and Continuity Equations. 

This section also covers energy bands in intrinsic and extrinsic semiconductors, direct and indirect band-gap semiconductors, and equilibrium carrier concentration. Other topics include Zener diode, P-N Junction, MOS capacitor, BJT, LED, MOSFET, photodiode, and solar cell. 

Section 4 – Analog Circuits

Op-amp Circuits: This section covers summers, amplifiers, integrators, differentiators, active filters, integrators, oscillators, and Schmitt Triggers.

Diode Circuits: The topics covered in this section are rectifiers, clamping, and clipping. 

BJT and MOSFET Amplifiers: This section covers AC coupling, biasing, frequency response, and small signal analysis. 

Some other topics covered are differential amplifiers and current mirrors. 

Read More – GATE Exam Pattern

Section 5 – Digital Circuits

Sequential Circuits: This section covers flip-flops, latches, shift registers, counters, finite state machines, set-up and hold time, propagation delay, and critical path delay. 

Number Representations: The topics in this section consist of integer, binary, and floating-point numbers. 

Computer Organization: This section covers ALU, machine instructions and addressing modes, instruction pipelining, and data path and control unit. 

Data Converters: This section covers DACs, ADCs, and sample and hold circuits. 

Combinatorial Circuits: Logic Gates and their static CMOS implementations, Boolean Algebra, minimization of functions using Boolean identities and Karnaughs map, arithmetic circuits, multiplexers, decoders, code converters, and logic gates and their static CMOS implementations are some topics of this section. 

Semiconductor Memories: The topics covered in this section are DRAM, SRAM and ROM. 

Section 6 – Control Systems

This section covers block diagram representation, basic control system components, transfer function, feedback principle, frequency response, steady-state analysis of LTI systems, Bode and root-locus plots, Routh-Hurwitz and Nyquist stability criteria, state variable model, lead and lag-lead compensation, and solution of the state equation of LTI systems. 

Section 7 – Analog Communications

Information Theory: The topics included in this section are channel capacity theorem, entropy, and mutual information. 

Random Processes: Properties of white noise, filtering of random signals through LTI and autocorrelation, and power spectral density are part of this section under Random Processes. 

Digital Communications: The topics covered in this section are DPCM, PCM, inter-symbol interference, ML detection, MAP,  digital modulation schemes (PSK, ASK, FSK, and QAM),  bandwidth, matched filter receiver, BER and SNR, and ML detection.
Hamming codes, CRC, and Fundamentals of Error correction.

Section 8 – Electromagnetics

Plane Waves and Properties: This section covers topics such as polarization, refraction and reflection, phase and group velocity, skin depth, and propagation through various media.

Maxwell’s Equations: This section includes topics like Poynting vector, differential and integral forms and their interpretation, wave equations, and boundary conditions. 

Transmission Lines: The key topics covered in this section are impedance matching, equations, characteristics impedance, S-parameters, and Smith chart. 

Other topics also include light propagation in optical fibres, rectangular and circular waveguides, linear antenna arrays, and dipole and monopole antennas. 

GATE ECE Syllabus: Topic-wise weightage

The topic-wise weightage of the topics covered in the GATE ECE Syllabus is below 1 mark and 2 mark questions.  Electronics and Communication Engineering aspirants are advised to plan their preparation strategy based on the syllabus weightage. Engineering Mathematics and General Aptitude are high-scoring subjects that candidates should focus on. The exam also requires knowledge of network theory and communication.

Below is the information regarding the syllabus weightage: 

FAQs on GATE ECE Syllabus

FAQs are as follows:

1. What is the GATE ECE Syllabus 2025?

  The GATE ECE syllabus consists of topics released by the official for the upcoming exam. It will include all the topics based on which the GATE ECE exam questions will be designed.

2. What are the sections in the GATE ECE syllabus? 

The GATE ECE Syllabus includes the main sections, which include networks, engineering mathematics, signals and systems, analog circuits, electronic devices, control systems, digital circuits and communications, and electromagnetics.

3. What are the sections that come under the GATE ECE Syllabus 2025?

The topics under the electromagnetic section are Maxwell’s equations, including wave equation and boundary conditions, Maxwell’s equations comprising differential and integral forms and their interpretation, poynting vector, Plane waves and properties: Reflection and Refraction, Polarization, Phase and Group Velocity, propagation through various media, skin depth and transmission lines: Smith Chart, Equations, Characteristic Impedance, Impedance Matching, and Impedance Transformation. Other topics include light propagation in optical fibres, rectangular and circular waveguides, linear antenna arrays, and monopole antennas.

4. Who releases the GATE ECE syllabus every year?

Every year the exam conducting authority releases the GATE ECE syllabus. This year IIT Roorkee will release the GATE syllabus for ECE. It is important for candidates to have the official syllabus for the exam.