GATE Electronics Engineering

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Each of us requires a different kind of study program based upon our style/preference of studying. Normally, all students take our study material and test series. Many also take video lectures as it helps them clear concepts. A lot depends upon time available to prepare, current stage of preparation, etc. If you are still unsure, please contact us.

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As a registered Career Avenues student, you can ask your doubts here and our faculty will get back to you.

Typically 5-6 months are required, but some students need a longer time frame based on other commitments. College students start preparation 12-18 months before GATE to have more time to practise questions as they may have semester exams as well.

We suggest about 800 to 1200 hours of preparation time overall. This can be divided into 3-4 months or 12-18 months, based on your schedule.

A Good Score For GATE Electronics (EC) is considered To Be: 55

Steps And Strategy To Prepare For GATE Electronics (EC) Exam

  1. Take a diagnostic test – best diagnostic test is a GATE paper of any of the previous 3 years.
  2. Note down what you have scored and what was the actual GATE qualifying score cut-off. Note that qualification does not help you much. What you need is a good score. So note the good score mentioned above and measure the gap between your score and a good score.
  3. Note the GATE syllabus and mark your topics that you are good at. First try to master subjects that you are good at.
  4. However, some subjects like Networks, Signals and Systems, Analog Circuits, Electromagnetics, Control Systems and Communications have a high weightage. So you should definitely prepare these.
  5. General Aptitude does not require preparation. It requires practice. So just practice solving Aptitude questions every day for 30 minutes.
  6. Mathematics may have a very high weightage. But note that to get these 6-10 marks, what you have to study and practice is typically more than a core subject. So if you wish to eliminate some topics in Maths, it is fine. Master topics that you are good at.
  7. Take lots of section tests and Mocks. Career Avenues provides an excellent test series for GATE Electronics (EC).
  8. In case you require focused GATE study material and books, you should take Career Avenues GATE Electronics (EC) study material which has been made by IIT alumni and is focused towards GATE. 
  • Being a GATE aspirant, it is very important that you first know what is the syllabus for GATE Electronics (EC) Examination before you start preparation.
  • Keep handy the updated copy of GATE Electronics (EC) Examination syllabus.
  • Go through the complete and updated syllabus, highlight important subjects and topics based on Past GATE Electronics (EC) Papers and Weightage plus your understanding of particular subject or topic.
  • Keep tracking and prioritising your preparation-to-do list and the syllabus for the GATE Electronics (EC) examination.

Section I: Engineering Mathematics

  • Linear Algebra:

Vector space, basis, linear dependence and independence, matrix algebra, eigen values and eigen vectors, 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 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 II: Networks, Signals and Systems

  • Topics – Part A:

Network solution methods: nodal and mesh analysis; Network theorems: superposition, Thevenin and Nortons, maximum power transfer; Delta transformation; Steady state 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.

  • Topics – Part B:

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 III: Electronic Devices

  • Topics:

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: oxidation, diffusion, ion implantation, photolithography and twin-tub CMOS process.

Section IV: Analog Circuits

  • Topics:

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 op-amp configurations; Function generators, wave-shaping circuits and 555 timers; Voltage reference circuits; Power supplies: ripple removal and regulation.

Section V: Digital Circuits

  • Topics:

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 flipflops, 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 VI: Control Systems

  • Topics:

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 VII: Communications

  • Topics:

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 VIII: Electromagnetics

  • Topics:

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.


Here are some recommended books for GATE Electronics & Communication (EC) preparation:

  1. Network:

    • “Fundamentals of Electric Circuits” by Charles K. Alexander, Matthew N.O. Sadiku.
    • “Engineering Circuit Analysis” by William H. Hayt, Jack E. Kemmerly.
  2. Signals & Systems:

    • “Signals & Systems” by Alan V. Oppenheim.
    • “Signals & Systems” by Tarun Kumar Rawat.
  3. Analog Circuits:

    • “Microelectronic Circuits” by Adel S. Sedra, Kenneth C. Smith.
    • “Integrated Electronics” by Millman & Halkias.
  4. Electronic Devices:

    • “Semiconductor Physics & Devices” by N. Sivaram.
    • “Integrated Electronics: Analog and Digital Circuits and Systems” by Jacob Millman, Christos C. Halkias.
  5. Communication:

    • “Communication Systems” by Simon Haykin.
    • “Principles of Communication Systems” by Herbert Taub, Donald L. Schilling, Goutam Saha.
  6. Digital Circuits:

    • “Digital Systems: Principles and Applications” by Ronald J. Tocci, Neal S. Widmer, Greg Moss.
    • “Digital Logic and Computer Design” by M. Morris Mano.
  7. Control Systems:

    • “Control Systems Engineering” by I.J. Nagrath, M. Gopal.
    • “Automatic Control Systems” by Benjamin C. Kuo.
  8. Electromagnetic Theory:

    • “Engineering Electromagnetics” by William H. Hayt, John A. Buck.
    • “Electromagnetic Waves” by R.K. Shevgaonkar.

It’s important to note that while these books are recommended, it’s also beneficial to refer to the official GATE syllabus and previous years’ question papers for a better understanding of the exam pattern and focus areas