Sendingend port a a b b transmission line generator. Ec6503 transmission lines and waveguides v semester 2 marks department of electronics and communication engineering 111 10. Electrostaticscoulombs law and electric field intensity fields due to continuous charge distributions, electric flux density, gauss law and its applications, electric potential, relations between e and v, maxwells two. If you find any issue while downloading this file, kindly report about it to us by leaving your comment below in the comments section and we are always there to rectify the issues and eliminate all the problem. In radiofrequency engineering, a transmission line is a specialized cable or other structure designed to conduct alternating current of radio frequency, that is, currents with a frequency high enough that their wave nature must be taken into account. Em waves and transmission lines ppt, full notes, ebooks. Applications of electromagnetic waves, transmission lines, maxwells equations, uniform plane wave, plane waves at a media interface, waveguides, dielectric waveguides, radiation, antenna arrays, propagation of radio waves. Standing waves and resonance chapter 14 transmission lines pdf version. Transmission lines are used for purposes such as connecting radio transmitters and receivers with their antennas they are then called feed. It is used, for example, to transfer the output rf energy of a transmitter to an antenna. In this chapter, we will study the transmission line characteristics in greater detail, such as the line behaviour with di. Developments in research, programs, and concepts since the first edition presented a demand for a. Transmission lines and em waves video lectures nptel.
Upon successful completion of the course, students will be able to a. So that a pulse will propagate down a superconducting transmission line without dispersing. Introduction to em waves and various techniques of communication. Transmission lines and wave propagation, fourth edition. These waves travel along the line with the velocity equal to velocity of light if line losses are neglected. Also, the amount of attenuation is extremely small, since this is due to ro. Jan 31, 2017 download version download 7955 file size 1.
Shevgaonkar department of electrical engineering iit bombay. Lines because lo and co do not depend on frequency for a superconductor, the phase velocity is independent of frequency. Nonlinear stability of periodic traveling waves of the bbm system hakkaev, sevdzhan, communications in mathematical analysis, 20. Waveguides may be thought of as conduits for electromagnetic energy, the waveguide itself acting as nothing more than a director of the energy rather than as a signal conductor in the normal sense of the word. Nptel video lectures, iit video lectures online, nptel youtube lectures, free video lectures, nptel online courses. To introduce the student to the fundamental theory and concepts of electromagnetic waves and transmission lines, and their practical applications, to study the propagation, reflection, and transmission of plane waves in bounded and unbounded media. This unit is designed to enable candidates to understand the basic principles and concepts of transmission lines and complex waves. In a sense, all transmission lines function as conduits of electromagnetic energy when transporting pulses or highfrequency waves. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Airline draw the transmission line model and find c.
This course deals with the principles of electromagnetics at high frequencies. Co 2 describe the characteristics of electromagnetic waves in. Chapter 3 introduction to transmission lines and waveguides a transmission line is a device designed to guide electrical energy from one point to another. 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. It will be shown later, when we consider transmission lines from the electromagnetic fields point of view, that these voltage and current waves correspond to em waves, also. Transmission lines and em waves online course video. Travelling wave on transmission line is the voltage current waves which propagate from the source end to the load end during the transient condition. Electromagnetic theory and transmission lines pdf notes. Traveling waves and power waves building a solid foundation for microwave circuit theory m icrowave equivalentcircuit theory is like a grand old building. The bifurcations of traveling wave solutions of the kundu equation yi, yating and liu. Therefore, such lines have four distributed parameters, series resistance, inductance shunt capacitance and conductance. May 11, 2018 travelling wave on transmission line is the voltage current waves which propagate from the source end to the load end during the transient condition.
If the incident signal is a continuous ac waveform. Transmission lines and em waves electronics and communication engineering course from iit bombay nptel lecture videos by prof. Either the voltage v or the current i as in waves in a transmission line or the electric field e or magnetic field h as in electromagnetic waves in free space or 2 2 2 2 2 a a1. Waves can exist traveling independently in either direction on a linear transmission line. Higher national unit specification general information for centres unit title. Traveling wave solutions of a diffusive seir epidemic model with nonlinear incidence rate zhao, lin, zhang, liang, and huo, haifeng, taiwanese journal of mathematics, 2019. In the era of high speed computers, where data rates are approaching to few gbsec, the phenomena related to the electromagnetic waves, like the bit distortion, signal reflection, impedance matching play a vital role in high speed communication networks. Transmission lines and wave propagation, fourth edition helps readers develop a thorough understanding of transmission line behavior, as well as their advantages and limitations. Electromagnetic theory can be thought of as generalization of circuit theory. The transmission line is a twoport circuit used to connect a generator or transmitter signal to a receiving load over a distance. Electromagnetic waves and transmission lines, and their practical applications b. Waveguides transmission lines electronics textbook.
Dielectricdielectric and dielectricmetal interfaces, fresnel coefficients,brewsters. Sep 11, 2019 therefore, such lines have four distributed parameters, series resistance, inductance shunt capacitance and conductance. Bridge course to practical aspects of engineering electromagnetics for entering graduate students and senior undergraduate students. Introduction to em waves and various techniques of communication by nptelhrd. Em waves and transmission lines ppt, full notes, ebooks hi can u post the book electromagnetic waves and transmission lines by u. Whenever there is a mismatch of impedance between transmission line and load, reflections will occur. The course will involve hands on programming to visualize most aspects of electromagnetics and transmission lines.
The effect of capacitance is ignored in these lines, length of short transmission line is less than 80 km. Traveling waves, the measureable electromagnetic field solutions of maxwells. Dec 31, 2007 lecture series on transmission lines and e. Concept of polarization of em waves, electromagnetic spectrum and its various ranges. Electronics transmission lines and em waves youtube. We will be looking at plane waves for which the wave equation is onedimensional and appears as follows. Transmission lines and em waves nptel online videos. An antenna is a device which can launch and receive electromagnetic waves efficiently. Am 10 a transmission line, which has neither frequency distortion nor phase distortion is called a distortion less line. These videos are provided by nptel elearning initiative. Noc transmission lines and electromagnetic waves nptel. Nptel provides elearning through online web and video courses various streams. Debapratim ghosh department of electrical engineering.
Transmission lines and waveguides are utilized to transfer electromagnetic waves carrying energy and information from a source to a receiver choice of the line technology depends on the purpose, e. Page 33 page 38 page 73 page 77 page 78 page 93 page 94 page 116. Study time varying maxwells equations and their applications in electromagnetic. Co 2 describe the characteristics of electromagnetic waves in medium. Vlf, lf, hf, vhf, uhf, microwave 16 hrs 88 b definition and physical concepts of the. There are certain situations that can be handled exclusively in terms of field theory. The analysis of travelling waves on power system transmission lines a thesis presented for the degree of doctor of philosophy in electrical engineering in the university of canterbury, christchurch, new zealand. Assume having perfect dielectric insulator and the wire have perfect conductivity with no loss example. Excellent course helped me understand topic that i couldnt while attendinfg my college.
Em fields in a waveguide or transmission line are e j z. Electromagnetic waves and transmission lines unit1 electromagnetic theory is a prerequisite for a wide spectrum of studies in the field of electrical sciences and physics. Basic ideas steady states determining time constant determining transient amplitude transmission lines basics re. This document is highly rated by students and has been viewed 229 times. Transmission lines and waveguides ebookpptpdf download. Shevgaonkar, dept of electrical engineering, iit bombay for more details on nptel visit. This energy will not travel through normal electrical wire without great losses. Transmission line theory different types of transmission lines, definition of characteristic impedance, the transmission line as a cascade of tsections, definition of propagation constant. To study the propagation, reflection, and transmission of plane waves in bounded and unbounded media. Introduction to em waves and various techniques of.
1175 306 1126 522 393 1065 467 189 648 375 762 156 1472 900 1123 1027 1112 211 657 1391 823 317 36 331 418 278 720 1460 785 1485 875 253 413 329 1439 1367 766 741 876 496 273 140 465 933 1372 681 228 1454 120 66