Syllabus of ICT 403 (Electromagnetic Theory and Antenna)

Course Contents

Field Equations: Field equations based on laws of Coulomb, Ampere and Faraday; Displacement current; Maxwell′s equation; Units and dimensions of field vectors; E-H symmetry; Lorenz′s lemma; Scalar and vector potentials; Retarded potentials.

Propagation of Electromagnetic Waves: Wave equations; Plane wave concept; Plane electromagnetic waves in free-space, in conducting, Dielectric and in ionized media. Pointing vector; Joule heating in good conductors; Intrinsic impedance and propagation constant.

Reflection and Refraction of Electromagnetic Waves: Boundary conditions; The laws of reflection and Snell′s law of refraction; Reflection from dielectrics and conductors; Fresnel′s equations; The Brewster angle; Total reflection; Skin effect; Phase and group velocities, Reflection and refraction in the ionosphere.

Antennas: Introduction, Wire Antennas; Aperature, Microstrip, Array, Reflector and Lens Antennas; Radiation mechanism; Current distribution on a thin wire antenna.

Fundamental Parameters of Antenna: Radiation patterns, Radiation power density, Radiation intensity, Beamwidth, Directivity, Gain, Antenna efficiency, Beam efficiency, Bandwidth, Polarization, Input impedance, Antenna radiation efficiency, Vector effective length, Maximum directivity and maximum effective area, Antenna temperature, Friis Formula: Antennas in Free Space.

Array, Loop, and Other Antennas: Antenna Arrays: Introduction, Linear and Planar Arrays, The Uniform Linear Array, Parasitic Elements: Uda–Yagi Antennas, Reflector Antennas, Monopole Antennas, Corner Reflectors, Parabolic Reflector Antennas. Horn Antennas, Loop Antennas, Helical Antennas, Patch Antennas.

Antenna measurements: Antenna Ranges, Radiation patterns, Gain and directivity measurements; Radiation efficiency; Impedance, current and polarization measurements; Scale model measurements.

Books:

1. S. Ramo, J.R. Whinnery and T.V. Duzer: Fields and Waves in Communication Electronics

2. J.D. Ryder: Networks, Lines and Fields

3. Corson and Lorain: Introduction to Electromagnetic Field and Wave.

4. D. K. Chang: Electromagnetic Fields and Waves

5. Constantine A. Balanis: Antenna Theory

6. J D Kraus: Antennas