# GATE Electronics Communication

**Category:**Education

**Description:**GATE Entrance Exam (Electronics and Communication) App brings you the information, previous exam papers, latest updates, campus news, recruitment news on GATE score, etc. directly to your phone / tab. Apart from GATE Papers students can also access IIT JAM previous year papers free of cost. This GATE App will be a definite help for students aspiring for a good rank in GATE Entrance in India. Almost all engineering graduates aspire for a good score in GATE so that on the basis of that they can get a seat in prestigious institutions for higher studies or secure a job on the basis of the GATE score. Many Government and Public Sector companies consider GATE score as their selection criteria for recruitment of technical positions in India. A good GATE score is always highly desirable for candidates persuing their engineering degrees in India. GATE is a highly sought after technical entrance in India and appeared by nearly 1 million students across various exam centres in India. Electronics and Telecommunications: The sheer availability of affordable means of communication is one of the greatest contribution the technology has done. The telephone, the radio, the satellite communication, the internet, the 4G mobile connectivity is all development that’s been the result of the advances in the communications technology. The continually developing new conventions and coding plans, better approaches to speak to feature, pictures and discourse as information, new methods for conveying this data to clients by means of links, fiber, and progressively through radio. It’s just a beginning of the further advancement of new technology for all you aspirants to grow with The Electronic Telecommunication perspective. Electronics and Telecommunication joins the key engineering controls of electronic systems and communication systems to give graduates abilities and skills in all the aspects of the analogue and digital circuit designs and also the communications systems improvement. The course focuses on the engineering standards needed to break down and tackle issues identified with the outline and usage of electronic and communication systems. Graduates will be familiar with the core physical sciences, the electronic circuits and systems, the digital signal processing aspect, force electronics, fiber optic and microwave communications, networking of the computer system , and wireless and the cellular systems. The course concentrates on the advancement of learning and aptitudes significant to expert engineering practice, and alongside with a strong theoretical base and incorporates solid components of problem solving, cooperation and teamwork within the development of the different projects. Therefore, and having various specialized and transferable ability, skills, graduates will have solid investigative abilities and the capacity to lead complex activities. You can go for this course if you have a strong base in Mathematics and Physics and nothing better than that if you can solve calculus problems or have a keen interest of semi-conductors. The telecommunication and the mobile industry are expanding like leaps and bounds and there are lots of opportunities for such specialization. The experts in this field of Electronics and Telecommunications get the opportunity to be associated with more or less every industry be in commercial or industrial or military services or scientific organizations. There are also opening for work accessible in both software and electronics organizations. They also get the opportunity to be a part of research and development. For them ample jobs are in the market in the public sector or the private sector. Due to the nature of the study of the development of analytical and programming skills they are one of the choice of candidates in software organizations. After from software they can choose to work in consumer electronics, electricity generation and the distribution aviation industry, transportation, radio and television sector, telecommunication sector and also in manufacturing industries. Electronics and Communication Gate Syllabus: Network graphs: matrices associated with graphs; incidence, fundamental cut set and fundamental circuit matrices. 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. Linear constant coefficient differential equations; time domain analysis of simple RLC circuits, Solution of network equations using Laplace transform: frequency domain analysis of RLC circuits. 2-port network parameters: driving point and transfer functions. State equations for networks. Electronic Devices: Energy bands in silicon, intrinsic and extrinsic silicon. Carrier transport in silicon: diffusion current, drift current, mobility, and resistivity. Generation and recombination of carriers. p-n junction diode, Zener diode, tunnel diode, BJT, JFET, MOS capacitor, MOSFET, LED, p-I-n and avalanche photo diode, Basics of LASERs. Device technology: integrated circuits fabrication process, oxidation, diffusion, ion implantation, photolithography, n-tub, p-tub and twin-tub CMOS process. Analog Circuits: Small Signal Equivalent circuits of diodes, BJTs, MOSFETs and analog CMOS. Simple diode circuits, clipping, clamping, rectifier. Biasing and bias stability of transistor and FET amplifiers. Amplifiers: single-and multi-stage, differential and operational, feedback, and power. Frequency response of amplifiers. Simple op-amp circuits. Filters. Sinusoidal oscillators; criterion for oscillation; single-transistor and op-amp configurations. Function generators and wave-shaping circuits, 555 Timers. Power supplies. Digital circuits: Boolean algebra, minimization of Boolean functions; logic gates; digital IC families (DTL, TTL, ECL, MOS, CMOS). Combinatorial circuits: arithmetic circuits, code converters, multiplexers, decoders, PROMs and PLAs. Sequential circuits: latches and flip-flops, counters and shiftregisters. Sample and hold circuits, ADCs, DACs. Semiconductor memories. Microprocessor(8085): architecture, programming, memory and I/O interfacing. Signals and Systems: Definitions and properties of Laplace transform, continuous-time and discrete-time Fourier series, continuous-time and discrete-time Fourier Transform, DFT and FFT, z-transform. Sampling theorem. Linear Time-Invariant (LTI) Systems: definitions and properties; causality, stability, impulse response, convolution, poles and zeros, parallel and cascade structure, frequency response, group delay, phase delay. Signal transmission through LTI systems. Control Systems: Basic control system components; block diagrammatic description, reduction of block diagrams. Open loop and closed loop (feedback) systems and stability analysis of these systems. Signal flow graphs and their use in determining transfer functions of systems; transient and steady state analysis of LTI control systems and frequency response. Tools and techniques for LTI control system analysis: root loci, Routh-Hurwitz criterion, Bode and Nyquist plots. Control system compensators: elements of lead and lag compensation, elements of Proportional-IntegralDerivative (PID) control. State variable representation and solution of state equation of LTI control systems. Communications: Random signals and noise: probability, random variables, probability density function, autocorrelation, power spectral density. Analog communication systems: amplitude and angle modulation and demodulation systems, spectral analysis of these operations, superheterodyne receivers; elements of hardware, realizations of analog communication systems; signal-to-noise ratio (SNR) calculations for amplitude modulation (AM) and frequency modulation (FM) for low noise conditions. Fundamentals of information theory and channel capacity theorem. Digital communication systems: pulse code modulation (PCM), differential pulse code modulation (DPCM), digital modulation schemes: amplitude, phase and frequency shift keying schemes (ASK, PSK, FSK), matched filter receivers, bandwidth consideration and probability of error calculations for these schemes. Basics of TDMA, FDMA and CDMA and GSM. Electromagnetics: Elements of vector calculus: divergence and curl; Gauss' and Stokes' theorems, Maxwell's equations: differential and integral forms. Wave equation, Poynting vector. Plane waves: propagation through various media; reflection and refraction; phase and group velocity; skin depth. Transmission lines: characteristic impedance; impedance transformation; Smith chart; impedance matching; S parameters, pulse excitation. Waveguides: modes in rectangular waveguides; boundary conditions; cut-off frequencies; dispersion relations. Basics of propagation in dielectric waveguide and optical fibers. Basics of Antennas: Dipole antennas; radiation pattern; antenna gain.