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Fundamentals of Electrodynamics Wave Theory
Major: Hardware-software devices of information communication systems
Code of subject: 6.172.10.O.023
Credits: 3.00
Department: Radioelectronic Appliances and Systems
Lecturer: d. s. Valeriy Oborzhytskyy
Semester: 4 семестр
Mode of study: денна
Завдання: General competences:
- ability to apply knowledge in practical situations;
- the ability to learn and master modern knowledge;
- skills of performing safe activities;
- desire to preserve the environment;
Professional competences:
- the ability to solve standard tasks of professional activity on the basis of information and bibliographic culture with the use of information and communication technologies and taking into account the basic requirements of information security;
- use basic methods, methods and means of receiving and transmitting, processing and storing information;
- the ability to draw up normative documentation (instructions) for operational and technical maintenance of information and telecommunication networks, telecommunication and radio technical systems, as well as according to test programs;
- the ability to organize and implement occupational health and safety measures in the process of operation, maintenance and repair of information and telecommunication network equipment, telecommunication and radio engineering systems;
- the ability to use and operate devices, means and systems of micro- and nanoelectronics, which are part of radio-electronic devices of systems and complexes;
- ability to create new technical solutions, their legal protection, technology transfer of radio-electronic devices of systems and complexes.
Learning outcomes: As a result of studying the academic discipline, the student must be able to demonstrate the following learning outcomes:
1. The mastered level of knowledge in vector analysis, necessary for the study of field theory;
2. Mastered the physical foundations of the electromagnetic field and the mathematical description of such a field and wave processes in it;
3. Knowledge of the features of wave propagation in isotropic and gyrotropic media;
4. Knowledge of electromagnetic processes in waveguide, dielectric (including optical) transmission lines and resonant structures, knowledge of the basic laws of the radiation process;
5. Knowledge of the peculiarities of the propagation of radio waves on radio lines of different frequency ranges;
6. Learned principles of experimental confirmation of certain theoretical provisions of the discipline;
7. Acquired skills of qualitative consideration and analysis of electrodynamic problems.
Teaching and learning methods:
- lectures - information-receptive or heuristic method, problem presentation method;
- independent work - research or reproductive method;
Methods of assessing the level of achievement of learning outcomes:
- current control - oral and frontal survey; performance and protection of laboratory work; speeches at seminars, tests, assessment of activity, performance of laboratory work;
- exam - written survey, test control.
Required prior and related subjects: Previous educational disciplines (pre-requisites): Basics of networks theory, Physics, Signal theory.
Associated and subsequent educational disciplines (co-requisites): Antenna-feeder devices, Electronic and quantum microwave devices, Digital methods of implementation of radio engineering systems, Signal generation and forming devices.
Summary of the subject: In the process of discipline teaching, the following are considered: the system of the electromagnetic field equations; boundary conditions; static and stationary fields; monochromatic electromagnetic field. The structure of a plane wave, its propagation in isotropic and gyrotropic media, reflection and refraction of a wave at the boundary between media are studied. Issues of radiation of electromagnetic waves, the field of elementary emitters are considered. Types of waves in transmission lines, waves in metal waveguides, coaxial lines, structures with a surface wave are studied. Oscillatory processes in volume resonators, issues of diffraction of electromagnetic waves are studied. The processes of propagation of surface and spatial radio waves in the Earth's atmosphere are considered.
Опис: Historical overview of field theory. Physical vector and scalar fields. Electromagnetic field and its characteristics.
Classification and characteristics of environments. A complete system of electromagnetic field equations in integral and differential forms, their physical meaning. Boundary conditions for field vectors. Energy balance equation.
Static and stationary electric and magnetic fields. Field potentials. Poisson's scalar and vector equations. Laplace's equation. Energy, capacity, inductance, mutual inductance.
Monochromatic electromagnetic field. Complex environment parameters. Field equation in complex form. Energy balance in a monochromatic field. Wave equations, electrodynamic potentials. Basic theorems and principles of electrodynamics.
Flat electromagnetic waves. Picture of the plane wave propagation process. Wave process parameters. Peculiarities of plane wave propagation in isotropic dielectric and conductive media. Surface effect. Electromagnetic wave polarization.
Wave reflection and refraction at the interface of media. Snell's laws. Fresnel's formulas. Reflection from a perfectly conducting surface. Total refraction and total reflection of the wave. Wave incidence on the boundary with an absorbing medium.
Waves in gyrotropic media. Isotropic and magnetized plasma. Properties of magnetized ferrites. Wave propagation along and across the magnetization vector.
Radiation of electromagnetic waves. The radiation field of an elementary vibrator, its parameters and characteristics. Field and parameters of elementary coil, elementary gap, Huygens element.
Waveguide structures. Classification of wave types. Parameters of fast waves in waveguide structures.
Structure and properties of waves in a rectangular waveguide. A wave of the fundamental type in a rectangular waveguide. Waves in a cylindrical waveguide. Coaxial line in the mode of transverse and fast waves
Dielectric waveguides. Slowed surface wave over a finned surface and over a dielectric plate on a perfectly conducting substrate.
Volumetric resonators. Intrinsic parameters of the resonators. Field structure, types of oscillations of a rectangular resonator. Cylindrical and coaxial resonators.
Diffraction of electromagnetic waves. Frauenhofer diffraction at the hole. Zones and Fresnel diffraction. Diffraction on a perfectly conducting cylinder.
Propagation of radio waves in the Earth's atmosphere. Radio lines. Waves above the earth's surface. The structure of space around the Earth. Ionospheric space waves. Peculiarities of wave propagation of individual bands. Cosmic communication.
Assessment methods and criteria: Current monitoring of laboratory classes is carried out in order to identify the student's readiness for classes in the form of: a selective oral survey (using control questions); assessment of the student's activity in the course of classes, submitted proposals, original decisions, clarifications and definitions, additions to previous answers.
Control questions are divided into:
a) test tasks - choose the correct answers;
b) problematic – creation of problematic situations;
c) questions-replies - to identify cause-and-effect relationships;
d) situational tasks - to determine the answer according to a certain situation;
e) issues of a reproductive nature - determination of practical significance.
Semester control – checking the answers to the questions of the test task of the written component of the exam and conducting an additional oral survey (oral component).
Критерії оцінювання результатів навчання: Current control: laboratory classes - 30 points.
Examination control: written component - 60 points; oral component - 10 points.
Total for the discipline: – 100 points.
Recommended books: Educational and methodological support (Methodical instructions for performing laboratory work in the discipline):
1. Study of a plane-parallel electrostatic field on the model of a symmetric stripline.
2. Study of the reflection of electromagnetic waves from the air-dielectric interface.
3. Study of the field of slowed surface waves.
4. Study of the dispersion of the wave of the main type in a rectangular metal waveguide.
5. Study of a volume resonator based on a segment of a metal waveguide.
6. Study of electromagnetic wave diffraction on a half-plane.
Recommended basic literature:
• Electrodynamics and distribution of radio waves. The textbook for student of higher ed. inst. / [Shokalo V. M., Pravda V. I., Usin V. A., Vuntesmeri V. S., Greckih D. V.]; under the editorship of V. M. Shokalo and V. I. Pravda.
P.1. Bases of the theory of the electromagnetic field (in Ukrainian). – Kharkiv: HNURE; Kolegium, 2008. – 286 p.
P. 2. Radiation and distribution of radio waves (in Ukrainian). – Kharkiv: HNURE; Kolegium, 2010. – 435 p.
• Zachariah I. A. Fundamentals of electrodynamics and distribution of radio waves: educ. guid. / I.A. Zachariah (in Ukrainian). – Lviv: GU "LP", 1996. – 314 p.
• Baskakov S. I. Electrodynamics and distribution of radio waves / S. I. Baskakov (in Russian). – M.: Vyssh. shc., 1992. – 416 p.Никольский В.В.
• Electrodynamics and distribution of radio waves / V. V. Nikolsky, T. N. Nikolskaya (in Russian). – M.: Nauka, 1989. – 543 p.
Information resources:
1. Dudyk M.V., Dikhtyarenko Yu.V. Electrodynamics (course of lectures): a study guide for students of higher educational institutions of physical and mathematical specialties. – Uman: PP "Zhovtyy", 2015. – 120 p.
http://dspace.udpu.edu.ua/bitstream/6789/4117/1/Electrodynamics.pdf