B e-electronics and communication engineering

UNIT I TRANSMISSION LINE THEORY 9

Different types of transmission lines – Definition of Characteristic impedance – The transmission line as a cascade of T-Sections - Definition of Propagation Constant. General Solution of the transmission line – The two standard forms for voltage and current of a line terminated by an impedance – physical significance of the equation and the infinite line – The two standard forms for the input impedance of a transmission line terminated by an impedance – meaning of reflection coefficient – wavelength and velocity of propagation. Waveform distortion – distortion less transmission line – The telephone cable – Inductance loading of telephone cables. Input impedance of lossless lines – reflection on a line not terminated by Z_o - Transfer impedance – reflection factor and reflection loss – T and ∏ Section equivalent to lines.

UNIT II THE LINE AT RADIO FREQUENCIES 9

Standing waves and standing wave ratio on a line – One eighth wave line – The quarter wave line and impedance matching – the half wave line. The circle diagram for the dissipation less line – The Smith Chart – Application of the Smith Chart – Conversion from impedance to reflection coefficient and vice-versa. Impedance to Admittance conversion and vice versa – Input impedance of a lossless line terminated by an impedance – single stub matching and double stub matching.

UNIT III GUIDED WAVES 9

Waves between parallel planes of perfect conductors – Transverse electric and transverse magnetic waves – characteristics of TE and TM Waves – Transverse Electromagnetic waves – Velocities of propagation – component uniform plane waves between parallel planes – Attenuation of TE and TM waves in parallel plane guides – Wave impedances.

UNIT IV RECTANGULAR WAVEGUIDES 9

Transverse Magnetic Waves in Rectangular Wave guides – Transverse Electric Waves in Rectangular Waveguides – characteristic of TE and TM Waves – Cutoff wavelength and phase velocity – Impossibility of TEM waves in waveguides – Dominant mode in rectangular waveguide – Attenuation of TE and TM modes in rectangular waveguides – Wave impedances – characteristic impedance – Excitation of modes.

UNIT V CIRCULAR WAVE GUIDES AND RESONATORS 9

Bessel functions – Solution of field equations in cylindrical co-ordinates – TM and TE waves in circular guides – wave impedances and characteristic impedance – Dominant mode in circular waveguide – excitation of modes – Microwave cavities, Rectangular cavity resonators, circular cavity resonator, semicircular cavity resonator, Q factor of a cavity resonator for TE101 mode.
TUTORIAL 15

TOTAL 60
TEXT BOOKS

1. 
   J.D.Ryder “Networks, Lines and Fields”, PHI, New Delhi, 2003.
   
2. 
   E.C. Jordan and K.G.Balmain “Electro Magnetic Waves and Radiating System”, PHI, New Delhi, 2003.
   

REFERENCE BOOKS

1. 
   Ramo, Whineery and Van Duzer: “Fields and Waves in Communication Electronics” John Wiley, 2003.
   
2. 
   David M.Pozar: “Microwave Engineering”, 2^nd Edition, John Wiley.
   
3. 
   David K.Cheng,Field and Waves in Electromagnetism, Pearson Education, 1989.
   

11UEC4007 ELECTRONIC CIRCUITS LABORATORY 0 0 3 1
OBJECTIVES

At the end of the course the students should be able

• 
  To design feedback amplifiers and study its frequency response.
  
• 
  To design various oscillators.
  
• 
  To design amplifiers and filters using PSPICE.
  

IMPLEMENTATION EXPERIMENTS

1. 
   Implementation of Voltage shunt feedback amplifier
   
2. 
   Implementation of Current series feedback amplifier
   
3. 
   Implementation RC phase shift oscillator
   
4. 
   Implementation of Wein bridge oscillator
   
5. 
   Implementation of Design Of Hartley Oscillator
   
6. 
   Implementation of Colpitts Oscillator
   
7. 
   Implementation of Class C Tuned Amplifier
   
8. 
   Implementation of Implementation Astable Multivibrator
   
9. 
   Implementation of Monostable Multivibrator
   
10. 
    Implementation of Bistable Multivibrator
    
11. 
    Implementation of Positive and Negative clippers
    

Simulation Experiments:

1. 
   Simulation of Differential Amplifier
   
2. 
   Simulation of astable multivibrator
   
3. 
   Simulation of monostable multivibrator
   
4. 
   simulation of Bistable multivibrator
   
5. 
   simulation or Inverter
   
6. 
   simulation of High pass filter
   
7. 
   simulation of low pass filter
   
8. 
   Simulation of Integrators and Differentiators
   

TOTAL 45
11UEC4008 LINEAR INTEGRATED CIRCUITS LAB 0 0 3 1
OBJECTIVES

At the end of the course the students should be able

• 
  To learn the characteristics of operational amplifiers
  
• 
  To design multivibrators, oscillators and filters using OP-AMP.
  

LIST OF EXPERIMENTS

Design and testing of:

1. 
   Inverting, Non inverting and differential amplifiers.
   
2. 
   Integrator and Differentiator.
   
3. 
   Instrumentation amplifier.
   
4. 
   Active low pass and band pass filter.
   
5. 
   Astable, Monostable multivibrators and Schmitt Trigger using op-amp.
   
6. 
   Phase shift and Wien bridge oscillator using op-amp.
   
7. 
   Astable and monostable using NE555 Timer.
   
8. 
   PLL characteristics and Frequency Multiplier using PLL.
   
9. 
   DC power supply using LM317 and LM723.
   
10. 
    Study of SMPS control IC SG3524 / SG3525.
    

TOTAL 45
11UEC4009 DIGITAL ELECTRONICS LAB 0 0 3 1
OBJECTIVES

At the end of the course the students should be able

• 
  To design combinational circuits
  
• 
  To design sequential circuits
  
• 
  To simulate circuits using HDL
  

LIST OF EXPERIMENTS

1. 
   Design and implementation of Adders and Subtractors using logic gates.
   
2. 
   Design and implementation of code converters using logic gates
   
   1. 
      BCD to excess-3 code and vice- versa
      
   2. 
      Binary to gray and vice-versa
      
3. 
   Design and implementation of 4 bit binary Adder/ subtractor and BCD adder using IC 7483.
   
4. 
   Design and implementation of 2Bit Magnitude Comparator using logic gates 8 Bit Magnitude Comparator using IC 7485.
   
5. 
   Design and implementation of 16 bit odd/even parity checker generator using IC74180.
   
6. 
   Design and implementation of Multiplexer and De-multiplexer using logic gates and study of IC74150 and IC 74154.
   
7. 
   Design and implementation of encoder and decoder using logic gates and study of IC7445 and IC74147.
   
8. 
   Construction and verification of 4 bit ripple counter and Mod-10 / Mod-12 Ripple counters.
   
9. 
   Design and implementation of 3-bit synchronous up/down counter.
   
10. 
    Implementation of SISO, SIPO, PISO and PIPO shift registers using Flip- flops.
    
11. 
    Simulate all the experiments using VHDL.
    

TOTAL 45

11UMA0001 NUMERICAL METHODS 3 1 0 4

(Common to all branches)

OBJECTIVES

At the end of this course student should be able

• 
  To find the roots of nonlinear (algebraic or transcendental) equations, solutions of large system of linear equations and eigen value problem of a matrix can be obtained numerically where analytical methods fail to give solution.
  
• 
  To construct approximate polynomial to represent the given numerical data and to find the intermediate values.
  
• 
  To know the applications of numerical differentiation and integration when the function in the analytical form is too complicated or the huge amounts of data are given such as series of measurements, observations or some other empirical information.
  

UNIT I SOLUTIONS OF EQUATIONS 9

Solutions of non linear equations by Iteration method, Regula-Falsi method and Newton Raphson method – Solutions of linear system of equations by Gauss Elimination, Gauss Jordan, Gauss Jacobian and Gauss Seidel methods – Inverse of a matrix by Gauss Jordan.

UNIT II INTERPOLATION AND APPROXIMATION 9

Equal Intervals - Newton’s Forward and Backward difference formulas- Unequal intervals- Newton’s’ Divided difference formula and Lagrangian polynomials- Interpolating with cubic spline polynomial.

UNIT III NUMERICAL DIFFERENTIATION AND INTEGRATION 9

Newton’s Forward and Backward Differences to compute derivatives- Trapezoidal rule – Simpson’s 1/3 rule, Simpson’s 3/8 rule – Two and three point Gaussian quadrature formulas.

UNIT IV INITIAL VALUE PROBLEMS FOR ORDINARY DIFFERENTIAL EQUATIONS 9 Taylor series method- Euler and modified Euler method – Fourth order Runge- Kutta method for solving first order equations- Milne’s and Adam’s Predictor and Corrector methods.
UNIT V BOUNDARY VALUE PROBLEMS IN ORDINARY AND PARTIAL

DIFFERENTIAL EQUATIONS 9

Finite difference solution of second order ordinary differential equations - finite difference solutions of one dimensional heat equation by explicit and implicit methods – One dimensional wave equation and two dimensional Laplace and Poisson equations.

TUTORIAL 15

TOTAL 60
TEXT BOOKS

1. 
   Veerarajan T, “Numerical methods: with Programs in C ”, Tata McGraw Hill, New Delhi, 2006.
   
2. 
   M.K.Venkataraman, “Numerical Methods”, National Publishing Company, 2000.
   

REFERENCE BOOKS

1. 
   Kandasamy P. Thigalagavathy, K, Gunavathi .K, “Numerical Methods”, S.Chand & Co., New Delhi, 2005.
   
2. 
   Jain M.K. Iyengar, K & Jain R.K., “Numerical Methods for Scientific and Engineering Computation”, New Age International (P) Ltd, Publishers 2003.
   

11UEC5002 ANALOG COMMUNICATION 3 1 0 4

1. 
   OBJECTIVES
   
1. 
   At the end of this course student should be able
   

• 
  To provide various Amplitude modulation and demodulation systems.
  
• 
  To provide various Angle modulation and demodulation systems.
  
• 
  To provide some depth analysis in noise performance of various receiver.
  
• 
  To study some basic information theory with some channel coding theorem.
  

1. 
   UNIT I AMPLITUDE MODULATIONS 9
   

Generation and demodulation of AM, DSB-SC, SSB-SC, VSB Signals, Filtering of sidebands, Comparison of Amplitude modulation systems, Frequency translation, Frequency Division Multiplexing, AM transmitters – Superhetrodyne receiver, AM receiver.

2. 
   UNIT II ANGLE MODULATION 9
   

Angle modulation, Frequency modulation, Narrow band and wide band FM, transmission bandwidth of FM signals, Generation of FM signal – Direct FM – Indirect FM, Demodulation of FM signals, FM stereo multiplexing, PLL – Nonlinear model and linear model of PLL, Non-linear effects in FM systems, FM Broadcast receivers, FM stereo receivers.

3. 
   UNIT III NOISE PERFORMANCE OF DSB, SSB RECEIVERS 9
   

Noise – Shot noise, thermal noise, White noise, Noise equivalent Bandwidth, Narrowband noise, Representation of Narrowband noise in terms of envelope and phase components, Sinewave plus Narrowband Noise, Receiver model, Noise in DSB-SC receiver, Noise in SSB receiver

4. 
   UNIT IV NOISE PERFORMANCE OF AM AND FM RECEIVERS 9
   

Noise in AM receivers threshold effect, Noise in FM receivers capture effect, FM threshold effect, FM threshold reduction, Pre-emphasis and de-emphasis in FM, Comparison of performance of AM and FM systems.

5. 
   
   
6. 
   UNIT V INFORMATION THEORY 9
   

Uncertainty, Information and entropy, Source coding theorem, Data compaction, Discrete memory less channels, mutual information, channel capacity, channel coding theorem, Differential entropy, and mutual information for continuous ensembles, information capacity theorem, implication of the information capacity theorem, rate distortion theory, Compression of information.
TUTORIAL 15

TOTAL 60

TEXT BOOK

1. Simon Haykin, Communication Systems, John Wiley & sons, NY, 3^rd Edition, 2001.

References

1. 
   Roddy and Coolen, Electronic communication, PHI, New Delhi, 4^th Edition, 2003.
   
2. 
   Taub and Schilling, Principles of communication systems, TMH, New Delhi, 1995.
   
3. 
   Bruce Carlson et al, Communication systems, McGraw-Hill Int., 4^th Edition, 2002.
   
4. 
   B.P.Lathi,Modern digital &Analog communication systems, , 3^rd Edition
   

WEB REFERENCES

1. 
   www.nptel.com
   

11UEC5003 DIGITAL SIGNAL PROCESSING 3 1 0 4

OBJECTIVES

At the end of the course the student should be able

• 
  To study DFT and its computation
  
• 
  To study the design techniques for digital filters
  
• 
  To study the finite word length effects in signal processing
  
• 
  To study the non-parametric methods of power spectrum estimations
  
• 
  To study the fundamentals of digital signal processors.
  

2.