## GATE ECE Syllabus 2021

**GATE 2021 Examination** will be conducted by one of the **IIT’s **and Candidates preparing for **GATE ECE 2021** can check the Exam Pattern, GATE ECE Syllabus & Marking Scheme of the Examination. Candidates who are preparing for **GATE ECE (Electronics and Communication Engineering)** have to understand the GATE ECE Syllabus before starting the Preparation. GATE Syllabus gives better understanding of the Important Topics and Level of Examination. Generally, all the questions will be from the Syllabus provided by the GATE Officials. Candidates can also give previous Year & Practice Mock test for preparation by doing so they will came to know about the Exam Pattern & Difficulty Level of the Examination.

This article consist of GATE Syllabus for Electronics and Communication Engineering to help the candidates in Preparing for the Examination. We have listed down the Sections for GATE ECE 2021 as per the information provided by the GATE Officials and Exam Pattern.

#### Know More about GATE 2021 Exam

## GATE ECE Exam Pattern

The paper will have two types of Questions MCQ’s & NAT, duration of the Examination will be 03 Hours. GA & Maths consist of 30% of the weightage & rest 70% will be Electronic Communication Based. Refer the table below to have an Idea of Exam pattern for GATE ECE:

Exam Mode | Online |

Number of Questions | 65 |

Total Marks | 100 |

Type of Questions | MCQs and NAT |

Number of Sections | 3 (General Aptitude, Engineering Mathematics and Subject Specification Section) |

Sectional Time-Limit | No |

- There is no provision of negative marking in NAT questions.
- MCQs carrying 1 marks each, 1/3 marks would be deducted as a penalty of marking the wrong answer.
- For questions carrying 2 marks, 2/3 marks would be deducted for marking an incorrect answer.

## GATE General Aptitude Syllabus

GATE General Aptitude Syllabus consists of Verbal Ability and Numerical Ability. General Aptitude Section is the same for all the GATE 2021 Examination. There will be a Total of 10 Questions of 1 & 2 Marks. The Verbal Ability consists of English Grammer, Vocabulary & Sentence Completion. Numerical Ability consists of Numerical Computation & Data Interpretation.

**GATE Syllabus and Exam Pattern 2021**

## GATE ECE Syllabus

Before starting the preparation, Candidates must go through the GATE ECE Syllabus to understand the Important Topics of Electronics and Communication Engineering. Detailed view of sections & topics are given below:

**Section 1: Engineering Mathematics**

**Discrete Mathematics:** Propositional and the first order logic. Sets, relations, functions, partial orders and lattices. Groups. Graphs: connectivity, matching, coloring. Combinatorics: counting, recurrence relations, generating functions.

**Probability:** Random variables. Uniform, normal, exponential, poisson and binomial distributions. Mean, median, mode and standard deviation. Conditional probability and Bayes theorem.

**Linear Algebra:** Matrices, determinants, system of linear equations, eigenvalues and eigenvectors, LU decomposition.

**Calculus:** Limits, continuity and differentiability. Maxima and minima. Mean value theorem. Integration.

**Section 2: Networks, Signals and Systems**

**Network solution methods:** Nodal and mesh analysis; Network theorems: superposition, Thevenin and Norton’s, maximum power transfer; Wye‐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.

**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.

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

**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, midfrequency 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.

**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.

**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; RouthHurwitz 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

**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.

**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, Sparameters, 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.

## GATE ECE Reference Books:

Candidates can refer the Books Mentioned in the Table below to get the detailed view of the Topics for better Preparation.

Reference Books |
Authors |

Electronic Devices | Electronic Devices and Circuits by Millman & Halkias, Semiconductor Physics And Devices by Donald A. Neamen, Solid state electronic devices by Ben G. Streetman and Sanjay Banerjee |

Signal Systems | Digital Signal Processing by S.K Mitra, Modern digital and analog Communications system by BP Lathi, Signals & Systems By Alan V. Oppenheim |

Digital System | Digital Logic and Computer Design by M.Morris Mano, Digital circuits and design by Salivahanan or Fundamentals of digital systems by Anandkumar, Digital Electronic Principles and applications by Ronald J. Toccii, Pearson Publications |

General Aptitude | Quantitative Aptitude by CAT by Arun Sharma, Quantitative Aptitude by R.S Agarwal |

MCQ book | Gate ECE by R.K Kanodia |

Analog Circuits | Analog Electronics, Electronics devices and circuits – Donald A Neaman, Microelectronics Circuits by Sedra & Smith, Electronic Devices and Circuit Theory by Robert L Boylestad & Nashelsky, Pulse and Digital Electronics by Millman and Taub |

Communication System | Analog and Digital Communication System by Simon Haykin, Principle of Communication System by Taub& Schillings, Modern digital and analog Communications system by BP Lathi, Electronic Communication Systems by Kennedy and Davis (just the Noise chapter) |

Control System | Control Systems Engineering by Norma Nise Control Systems by Nagarath and Gopal NPTEL Video lectures by M. Gopal |

Maths | Advanced Engineering Mathematics by R. K. Jain, S. R. K. Iyengar – Narosa Publications Higher Engineering mathematics by Dr. B.S Grewal |

Network | Network Theory by Alexander Sadiku, Circuit Theory by A.Chakraborty, Network Analysis by Van Valkenburg |

Electromagnetics | Elements of Electromagnetics by Matthew N.O. Sadiku, Network lines and fields by J.D ryder (Transmission lines part), Electromagnetic waves and Radiating Systems by Jordon and ballmain, Antenna Theory by Balanis, NPTEL Lectures by Prof. R. Shevgaonkar |

By going through the exam pattern & GATE ECE Syllabus, a candidate will get an estimate about the exam difficulty level and how to prepare for the GATE ECE Examination. A well prepared exam comprises thorough knowledge of the syllabus, previous year papers and/or mock papers. Candidates can consult the adda247 website for study material related to question papers/mock papers.