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Tag Archives: electronics and communication

NETWORK GRAPHS:

matrices associated with graphs; incidence, fundamental cut set and fundamental circuit matrices. Solution methodsl; nodal and mesh analysis. Network theorems; superposition, Thevenin and Nortan’s, maximum power transfer, wye-delta transformation, steady state sinusoidal analysis using phasors, fourier series, linear constant coefficient differential and difference equations; time domain analysis of simple RLC circuits. laplace and Z transforms: frequency domain analysis of RLC circuits, convolution,2-port network parameters, driving point and transfer functions, state equation for networks.

ANALOG CIRCUITS:

characteristics and equivalent circuits(large and small singnal) of diodes,BJT,JFETs and MOSFET simple diode circuits: clipping, clamping, rectifier, biasing and bias stability of transistior and FET amplifiers. Amplifiers: single and multi-stage, differential, operational, feedback and power. Analysis of amplifers; 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, Power supplies.

DIGITAL CIRCUITS:

Boolean algebra; minimization of boolean functions; logic gates; digital IC families( DTL,TTL,ECL,MOS,CMOS). Combinational circuits: airthmetic circuits, code converters, multiplexers and decoders. Sequential circuits: latches and flip-flops, counters and shift-registers. Comparators, timers, multivibrators. Sample and hold circuits, ADCs and DACs. Semiconductor memories. Microprocessor (8085): architecture, programming, memory and I/O interfacing.

CONTROL SYSTEMS:

Basic control system components; block diagrammatic descripption,reduction of block diagrams,properties of systems: linearity,time-invariance,stability,causality.Open loop and closed loop (feedback) systems.Special properties of linear time- invariance(LTI) systems-transfer function, impulse responce,poles,zeros,their significance, and stability analysis of these systems. Signal flow graphs and their use in determining transfer functions of systems; transient and steaty state analysis of LTI system and frequency responce. 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 compensations, elements ofPropotional-integral.
-Derivative(PID) control. State variable representation and solution of state equation for LTI systems.

COMMUNICATION SYSTEMS:

Fourier analysis of signals – amplitude, phase and power spectrum, auto-correlation and cross-correlation and their Fourier transforms. Signal transmission through linear time-invariant(LTI) systems,impulse responce and frequency responce,group delay phase delay. Analog modulation systems-amplitude and angle modulation and demodulation systems, spectral analysis of these operations, superheterodyne receivers, elements of hardwares realizations of analog communications systems. Basic sampling theorems. Pulse code modulation(PCM), differential pulse code modulation(DPCM), delta modulation(DM). Digital modulation schemes: amplitude, phase and frequency shift keying schemes(ASK,PSK,FSK). Multiplexing – time division and frequency division. Additive Gaussian noise; characterization using correlation, probability density function(PDF),power spectral density(PSD). Signal- to-noise rasio(SNR) calculations for amplitude modulation(AM) and frequency modulation(FM) for low noise conditions.

ELECTROMAGNETICS:

Elements of vector calculus: gradient, dicergence and curl; Gauss and strokes theorems, maxwells equation: differential and integral forms. Wave equation. Poynting vector. Plane wavwes: propagation through various media; reflection and refraction; phase and group velocity; skin depth Transmission lines: Characteristic impedence; impedence transformation; smith chart; impedence matching pulse excitation. Wave guides: modes in rectangular waveguides; boundary conditions; cutt-off frequencies; dipersion relations. Antennas; Dipole antennas; antenna arrays; radiation pattern; reciprocity theorem; antenna gain.

Electronics and Communication Engineering and today’s world:

Electronics, particularly computer usage coupled with recent space age, endeavours has by this time already crept into every sphere of human activities. Every industry, institution & organization feels the need of an Electronics Engineer and a Computer specialist.

Today’s world is very much for and of the Electronics & Communication Engineers. Advanced countries in the world have gone to such depths of Electronics today that an Electronics Engineer is indispensable in every front. Opportunity in this highly sophisticated and advanced branch of engineering is just immense.

Electronics is now a part of our every day life, from your pocket FM radio to televisions, computers, mobile phones and even the high-end satellites that process and sends images.

Career prospects

Today, technology is growing at a rapid pace. In the coming future there is bound to be huge demand for competent engineers in electronic industry to cope this demand in technology. These engineers would be involved in creating and sustaining cutting edge technology to stay ahead in competition.

An electronic engineer can find job in Consumer electronics manufacturing organisation, Telecommunication industry, IT industries, Health care equipment manufacturing industry, Mobile communication, Internet technologies, Power Electronics, and Other industries like steel, petroleum and chemical industry, directing control and testing production process.

Electrical technicians and technologists can specialize in technical sales, product representation, systems management, the design and manufacture of electronic devices and systems, or the installation, maintenance and repair of electronic systems and equipment.

They may also work with computers and electronic equipment in the medical, manufacturing, industrial control, telecommunications, aeronautical and military fields.

Working Conditions

Electronics and communication engineering graduates can work for electrical utilities, communications companies, manufacturers, the military, government, or in the processing and transportation industries. They are also extensively involved in the manufacturing of electronic gadgets and devices. The work of an electronic engineer is varied and depends upon the industry they are working in.

Job Outlook

There are plenty of jobs for skilled electrical and electronics technicians with postsecondary qualifications. But the job is becoming more competitive and there are not so many jobs for people with lesser skills. Technology is improving productivity for many of these jobs and thus holding down job growth.

An electronics engineer can get a job in Central Government, State Governments and their sponsored corporations in public enterprises and the private organizations like All India Radio, Indian Telephone Industries, MTNL, National Physical Laboratories, AIR, Civil Aviation Department; Post and Telegraph Department; Co-ordination Department, National Physical Laboratory, Bharat Electronics Limited, Development Centers in various States etc.  dealing in manufacture, sales and services of electronics consumer goods and appliances.

Electronics engineers are also absorbed into the entertainment transmission industry, research establishments, and defense. They can also take up teaching and research in one of the many engineering colleges in India or abroad.

Course Content:

  • Maths
  • Circuits
  • Digital design
  • Control system
  • Network Analysis & Synthesis
  • Electronics Devices & Analog ICs
  • Microprocessor systems
  • Signals and systems
  • Electronic Measurement & Instrumentation
  • Applied Electronics
  • Digital Electronics
  • Electromagnetic Field Theory
  • Linear Control Systems
  • Virtual Instrumentation &Data Acquisition
  • Micro Processors & its applications
  • Total Quality Management
  • Process Dynamics & Control
  • Programmable Logic Controllers & Applications
  • Computer Control of Industrial Process

and many more…

Placement and Pay scale of Electronics and Communication Engineers: Electronics and Communication Engineers usually get handsome salaries after some experience in related fields. Starters can get anywhere between Rs. 20,000/- to Rs.35,000/- per month depending upon their skill and the company they are employed in.

source:

afterbtech.com