Course Name: Electromagnetic and Antenna

Course Code: S2293066

Semester: 3

Credit: 2

Program: Electronics

Course Module: Compulsory

Responsible: Yan Xu, Maurizio Bozzi

E-mail: xuyan@tju.edu.cn

Department:Tianjin International Engineering Institute, Tianjin University

Time Allocation(1 credit hour = 45 minutes)

Course Description

The course covers the following topics:

1. The propagation, reflection, and transmission of plane waves, and the analysis and design of multilayer films.

2. Waveguides, transmission lines, impedance matching, and S-parameters.

3. Linear and aperture antennas, scalar and vector diffraction theory, antenna array design, and coupled antennas.

Prerequisite

Fourier Transform, Physics, Calculus.

Course Objectives

This course is a basic introduction to electromagnetic waves and antennas. The aim of this course is to emphasize mathematical approaches, problem solving, and physical interpretation.

Course Syllabus

1. Review of Maxwell’s Equations. (2 weeks)

Maxwell’s equations, constitutive relations, boundary conditions, current density, Poynting vector, energy conservation, power dissipation, electrostatic and time-varying harmonic fields, simple models of dielectrics, conductors, and plasmas.

1. Uniform Plane Waves. (5 weeks)

Uniform plane waves in lossless and loss media, power loss calculations and skin depth, polarization, normal incidence on interfaces, reflection and transmission coefficients, wave impedance, impedance transformations, half-wave and quarter-wave media, multilayer structures, optical filters and antireflection coatings, oblique incidence, Snel's law of refraction, Brewster angle, total internal reflection, surface plasmas, photonic crystals and Omni-directional dielectric mirrors, met materials and negative-index media. Pulse propagation in dispersive media, concepts of phase, group, and front velocities, dispersion compensation in optical fibbers, slow, fast, and negative group velocity media, pulse compression in radar.

1. Transmission Lines and Waveguides. (4 weeks)

TEM transmission lines, coaxial, parallel wire, and micro strip lines, Smith chart, impedance matching methods, S-parameters and their application to microwave amplifier design, Rectangular waveguides, cut-off frequency, group and phase velocities, dielectric waveguides and optical fibbers, power flow and power loss calculations, cavity resonators.

1. Antennas. (4 weeks)

Radiation fields from current sources and apertures, radiated power, radiation resistance, radiation pattern, directivity and gain, beam width, effective area, communicating antennas, Friis formula, antenna noise temperature, satellite links, radar, linear and loop antennas, dish antennas, antenna arrays, uniform, binomial, Dolph-Chebyshev, Taylor-Kaiser, multibeam, sector-beam array design methods.

Textbooks & References

• S. J. Orfanidis.Electromagnetic WavesandAntennas. 2008.

Grade Distribution

Total Grades:100%

Capability Tasks

CT1: To understand basic science, and to have analytical ability and the ability to integrate related knowledge.

CT2: To apply relevant professional knowledge to the field of science and technology: understanding of the basic concepts and its connotation, application of different methods and concepts which have been learned, capability of judging the scope and limitations of such applications.

CT3: To grasp methodologies and engineering tools: identifying, utilizing and solving problems. Even if the students are not familiar with the content, they can turn to computer tools for systematic analysis.

CT4: To carry out experiments in research environment with the abilities to utilize tools, especially for data collection and processing.

CT10: To have the capacity to work in international environment; the capability to master one or more foreign languages and be open to foreign cultures; be able to acclimatize themselves to the international language environment.

Achievements

• To create, understand and utilize charts while knowing the corresponding physical parameters. - Level: M

• To apply general electric’s principles to wave propagation. - Level: M

• To be able to calculate the radio electric characteristics of basic antennas. - Level: A

• To be able to choose a radiating element according to specifications. - Level: M

• To be able to design an antenna according to specifications with or without using an EM simulator. - Level: A.

Students: Electronics, Year 2