AE14 ELECTROMAGNETICS AND RADIATION

 

1.         Electrostatics                                                                                                  9 hours

    

1.1               Coulomb’s law and Gauss’s law and their applications (line charge, surface charge and  volume charge).

1.2               Energy in electrostatic fields.

1.3               Capacitance of parallel plate and coaxial cables.

1.4               Fields in dielectrics.

1.5               Boundary conditions.

1.6               Laplace and Poisson’s equations and their applications. 

 

I [2, 3, 4, 6]; II [4, 5]

 

2.         Magnetostatics                                                                                              6 hours

 

2.1        Ampere’s law and Biot-Savart’s law and their applications.

2.2        Energy in magnetic field.

2.3        Boundary conditions.

 

I [2, 3, 4]; II [6, 7]

 

3.         Maxwell's Equations                                                                                          9 hours

 

 3.1       Maxwell’s equations in integral form and differential form, (Gauss’s law in electric and  magnetic field, Ampere’s circuital law, Faraday’s law).

 

I [3, 4]; II [9]

 

4.         Uniform Plane Waves                                                                                     6 hours

 

4.1               Wave equations and its solutions for free space and conducting media, surface   impedance.

4.2               Power flow in an electromagnetic field , Poynting vector.

4.3               Reflection and refraction of uniform waves in conductors and dielectrics with normal and oblique incidence.   

 

I [5, 9]; II [9, 10, 11]

 

5.         Transmission Lines                                                                                        12 hours

 

5.1               Distributed parameters (R, L, C, G) for open wire and coaxial cable.

5.2               Transmission line theory : line equation and solution , lossless lines. 

5.3               Voltage Standing wave ratio ( VSWR ), Reflection coefficient.

5.4               Transmission lines as tunned circuit elements (short circuited and open circuited line).

5.5               Matching (quarter wave transformer, single stub).

           

            I [6, 7]

 

6.         Rectangular Waves Guides                                                                            6 hours   

 

6.1               Transverse electric (TE) and Transverse magnetic (TM) waves for rectangular wave Guide.

6.2               Dominant mode, cut off frequency, guide wavelength, wave impedance, Wave guide Measurements.

6.3               Rectangular cavity resonator.

 

            I [10]; II [13]

 

7.         Elements of Antennas                                                                                    9 hours

   

7.1               Hertizian Dipole.

7.2               Radiation resistance and directivity.

7.3               Linear Antennas (half wave dipole and its radiation field and radiation resistance, linear antenna of arbitrary length).

7.4                Antenna arrays (array of two Hertizian dipoles, uniform linear array of n antennas).

 

I [11]; II [18, 21]

 

8.         Elements of Wave Propagation                                                                      3 hours

 

8.1        Elementary idea of ground wave, Space wave (direct wave ) and Sky wave (ionospheric) propagation and their characteristics ( skip distance, MUF or critical frequency, Reflection and refraction of waves by ionosphere).

 

II [19]

 

 

Text Books:  

 

I.          N. N. Rao, “Elements of Engineering Electromagnetics ”  5th edition (2002) Prentice Hall of India.                     .

II.        K. A. Gangadhar and P. M. Ramanathan,  “Field Theory” 15th edition , 2002,       Khanna Publishers.

 

Reference Books:     

 

1.         Dr. J. P. Tewari, “ Engineering Electromagnetics (Theory, Problems and Applications)” 2nd edition, 1999, Khanna Publishers.

2.         Kraus / Fleisch, “ Electromagnetics with Applications”, 5th edition                     (International ) , 1999,   Mc Graw Hill.

3.         Jordan and Balmain, “ Electromagnetic waves and Radiating Systems” 2nd edition, Prentice Hall of India.