Electronics & Communication
The GATE EC paper tests electronics and communication engineering. Each lesson covers one part of the syllabus: the detailed list of topics, the key concepts and formulas, a worked example, and GATE-style questions whose numerical answers are recomputed by a program. Engineering Mathematics and General Aptitude, common to all papers, have their own tracks.
1Overview
2Networks, Signals and Systems
- Network AnalysisGATE EC syllabus for network analysis, with node and mesh analysis, network theorems, phasors and complex power, transients in RL, RC and RLC circuits, Laplace-domain analysis and two-port parameters, with solved examples.
- Signals and SystemsGATE EC syllabus for signals and systems, with Fourier series and transform, sampling, DTFT, DFT, z-transform, LTI system properties, convolution, poles and zeros, frequency response, group delay and phase delay, with solved examples.
3Devices and Circuits
- Electronic DevicesGATE EC syllabus for electronic devices, with energy bands, carrier concentration, drift and diffusion, mobility and conductivity, the Einstein relation, P-N junctions, Zener diodes, BJTs, MOS capacitors, MOSFETs, LEDs, photodiodes and solar cells, with solved examples.
- Analog CircuitsGATE EC syllabus for analog circuits, with diode circuits, BJT and MOSFET biasing and small-signal amplifiers, frequency response, current mirrors, differential amplifiers and CMRR, and op-amp circuits including filters, Schmitt triggers and oscillators, with solved examples.
- Digital Circuits and Computer OrganizationGATE EC syllabus for digital circuits, with number representations, Boolean minimisation, CMOS gates, arithmetic circuits, multiplexers and decoders, flip-flops, counters, FSMs, timing (setup, hold, critical path), data converters, memories and basic computer organization, with solved examples.
4Control and Communication
- Control SystemsGATE EC syllabus for control systems, with transfer functions, block diagrams and signal flow graphs, second-order response, steady-state errors, Routh-Hurwitz and Nyquist stability, root locus, Bode plots, compensators and state equations, with solved examples.
- CommunicationsGATE EC syllabus for communications, with random processes and noise, AM and FM, superheterodyne receivers, entropy and channel capacity, PCM and DPCM, digital modulation, matched filters, BER and error-correcting codes, with solved examples.