GATE 2027 Electronics and Communication Engineering Official Syllabus
Section 1: General Aptitude (Common to All Papers • 15 Marks)
Verbal, Quantitative, Analytical & Spatial Reasoning
Common General Aptitude (Verbal, Quantitative, Analytical, Spatial).
Section 2: Engineering Mathematics (Core Component)
Mathematical Foundations
Linear Algebra, Calculus, Differential Equations, Vector Analysis, Complex Analysis, Probability and Statistics.
Section 3: Subject-Specific Core Syllabus (85 Marks)
Technical Domain Breakdown
Networks, Signals and Systems (Circuit analysis, network theorems, transient analysis, sinusoidal steady-state, two-port networks; Continuous-time and discrete-time signals and systems, Fourier series, Fourier transform, Laplace transform, z-transform, sampling theorem, LTI systems); 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 diode, Zener diode, BJT, MOS capacitor, MOSFET, LED, photodiode, solar cell); Analog Circuits (Small signal equivalent circuits of diodes, BJTs and MOSFETs; simple diode circuits: clipping, clamping, rectifiers; single-stage BJT and MOSFET amplifiers, multi-stage amplifiers, differential amplifiers, operational amplifiers and applications, active filters, sinusoidal oscillators); Digital Circuits (Number systems, combinational circuits: Boolean algebra, minimization of functions, multiplexers, decoders; sequential circuits: latches and flip-flops, counters, shift-registers, finite state machines; data converters: sample and hold circuits, ADCs and DACs; semiconductor memories: ROM, SRAM, DRAM; microprocessor 8085 architecture); Control Systems (Basic control system components, block diagram representation, transfer function, transient analysis, frequency response: Bode plots, Nyquist stability criterion, root loci, state-variable model); Communications (Random processes: autocorrelation and power spectral density, properties of white noise; Analog communications: amplitude modulation and demodulation, angle modulation and demodulation, superheterodyne receivers; Information theory: entropy, channel capacity; Digital communications: PCM, DPCM, digital modulation schemes: ASK, FSK, PSK, QAM, matched filter receiver, calculation of bandwidth, SNR and BER for digital modulation; fundamentals of error correction codes: Hamming codes, CRC); Electromagnetics (Maxwell's equations: differential and integral forms, boundary conditions, wave equation, Poynting vector; Plane waves: reflection and refraction, polarization, phase and group velocity, skin depth; Transmission lines: equations, characteristic impedance, reflection coefficient, standing wave ratio, impedance matching; Waveguides: rectangular waveguides, TE and TM modes; Antennas: dipole antennas, radiation pattern, gain and directivity).