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DRDO-SET
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Syllabus for Electronics & Communication paper DRDO-SET
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 shift-registers. 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-Integral-Derivative (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.

I am diploma mechanical student Please send me previous five years questions
Posted by:-AMIT SAHA.     On: May 31, 2015 - 1:26:10 PM
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i am pursuing my BE ( e c e ) third year i need the syllabus and previous year question papers and full information about preparation please mail it
Posted by:-karthi.     On: May 26, 2015 - 11:55:30 AM
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sir i m currently pursuing final year electronics and instrumentation engineering Am I eligible for DRDO Exams because in your eligibiility criteria my engg dept is not mentiond
Posted by:-S.Santhoshkumar.     On: May 23, 2015 - 8:07:02 AM
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Sir, I want to know the exam centre and job location
Posted by:-Surbhi.     On: May 15, 2015 - 3:02:12 PM
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respected sir, I have done M sc physics with electronics i want to know job locations of DRDO
Posted by:-Surbhi.     On: May 15, 2015 - 2:56:51 PM
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Dear Sir, i has been completed diploma in mechanical engineering recently 2014 Kindly guide me for DRDO CEPTAM And send me previous years question papers regards M Ramakrishna
Posted by:-M.Ramakrishna.     On: Apr 28, 2015 - 2:02:31 PM
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Sir i am have given exam of class 12 and i want to join drdo What should i do
Posted by:-Ashesh chand rai.     On: Apr 15, 2015 - 3:09:45 PM
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sir, i study in sybsc class can i join the DRDO when i complit Msc in physics what marks may obtain?
Posted by:-Kadam dattatray.     On: Apr 9, 2015 - 7:02:52 PM
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sir/madam my qualification is bsc statistics I can join drdo? send me which post i can join
Posted by:-rohan.     On: Apr 7, 2015 - 5:25:26 PM
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sir/madam my qualification is bca mca i am eligible in drdo which post pls send
Posted by:-anuj kumar sharma.     On: Apr 6, 2015 - 10:01:57 PM
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Hello Sire, I\'m the student of TE Automobile Engg in Pune University & I want to be a scientist in DRDO So, kindly tell me what to do to reach there
Posted by:-Vedprakash Pawar.     On: Apr 5, 2015 - 12:20:50 PM
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hi,sir please send me the previus year question paper of ece
Posted by:-surbhi soni.     On: Mar 31, 2015 - 4:10:11 PM
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Respect Sir/Madam, My name is Arjun Srinivas and I aspire to join DRDO I\'m studying 10th std, waiting for CBSE results for 10th standard What group is most applicable to join DRDO? I am looking forward to join computer science group What else would I have to study in order to join the armour and weapon designing wing? What is the minimum and preferred marks in the courses specified?
Posted by:-S.Arjun Srinivas.     On: Mar 30, 2015 - 10:24:22 AM
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hi dear sir plz give me full information i have passed B S C chemistry can i applyed thanks
Posted by:-avanish kumar.     On: Mar 27, 2015 - 3:45:47 AM
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Pl z send me the previous Question paoers
Posted by:-MasthanReddy.     On: Mar 26, 2015 - 8:22:08 AM
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