Electronics and Communication Engg (B.Tech) for Interview Preparation

chanandler7

Can anyone suggest how and from where to study the graduation subject of ECE.? If any material or good source is available?

Plz Help..

imurpriya

.

fairytale

Some of the questions asked by alka sirohi last year:
A. Explain working of RADAR
B. What are features of LASER
C. Why semi-conductor fabs are not in India.

naik9119

@imurpriya aap bhi ECE se ho ab tho questions ka train departure karwa dijiye....@fairytale thnks ab lagta hai achha se padna padega....

chanandler7

Is there a good source to study basic concepts? how to prepare this graduation subject and from where?

nelgaur

@imurpriya last year interview ke liye kahan sei prepare kiya tha tumne ?
please share ur interview questions and experience...

speedmachine1991

I suggest the following approach

1. List down all topics that we have studied i.e., basic components and processes like transistor, IC, op-amp, MOSFET, BJT, Radar, Satellite orbits, working of mobiles, cdma, gsm, diff generations of mobile communications, types of modulation, capacitors, resistors etc.
2. Then we can just discuss briefly(just basics i.e., what is it, its uses and features) at least two topics here daily. This would cover minimum of 60 topics by the time result is out, assuming it will be out in 30 days and we discuss two topics.

Those who are ready please respond.

nelgaur

I suggest the following approach

1. List down all topics that we have studied i.e., basic components and processes like transistor, IC, op-amp, MOSFET, BJT, Radar, Satellite orbits, working of mobiles, cdma, gsm, diff generations of mobile communications, types of modulation, capacitors, resistors etc.
2. Then we can just discuss briefly(just basics i.e., what is it, its uses and features) at least two topics here daily. This would cover minimum of 60 topics by the time result is out, assuming it will be out in 30 days and we discuss two topics.

Those who are ready please respond.

sounds ok for me
count me in
just can u please share source also for first hand reading before contributing in the discussion

speedmachine1991

I suggest the following approach

1. List down all topics that we have studied i.e., basic components and processes like transistor, IC, op-amp, MOSFET, BJT, Radar, Satellite orbits, working of mobiles, cdma, gsm, diff generations of mobile communications, types of modulation, capacitors, resistors etc.
2. Then we can just discuss briefly(just basics i.e., what is it, its uses and features) at least two topics here daily. This would cover minimum of 60 topics by the time result is out, assuming it will be out in 30 days and we discuss two topics.

Those who are ready please respond.

sounds ok for me
count me in
just can u please share source also for first hand reading before contributing in the discussion

There is no source as such. I am thinking of picking the topics from GATE ECE syllabus or some other model ECE syllabus and then google those topics or watch youtube videos on them. We can always refer our textbooks from college if there is a need(I have my textbooks with me but right now I am outside and cannot access them at least for another two weeks). I will get back with a list of few topics by tomorrow. What do you think?

speedmachine1991

http://www.myopencourses.com/discipline/electronics-communication-engineering

I found the above mentioned website. I believe it can be very useful.

chanandler7

Syllabus of Electronics and Communication Engineering
Networks:
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.