Ppt related to sky wave propagation for communication. The science and study of radio wave reflection, refraction. Hf radio wave propagation 1 hf radio wave propagation 2 introduction. In this mode of wave propagation electromagnetic waves after transmitted from transmitting antenna reaches the receiving antenna either directly or after reflection from earths surface and tropospheric region. This attitude undoubtedly stems from the fact that wave propagation is an invisible force that cannot be detected by the sense of sight or touch. Notes antenna and wave propagation awp lecturenotes. Antenna and wave propagation notes pdf awp notes 2019 sw. Radio wave propagation is the property of its rightful owner. Electromagnetic waves dont need a material at all, and so they always travel at the same speed. Templates include orange waves, ocean, palms, and cruise ship. Ppt radio wave propagation powerpoint presentation, free. V elocity of propagation of a wave in free space is giv en by 3. Wave propagation soil dynamics, civil engineering civil engineering ce notes edurev is made by best teachers of civil engineering ce. Most technicians, however, tend to view wave propagation as something complex and confusing, and would just as soon see this chapter completely disappear from training manuals.
A free powerpoint ppt presentation displayed as a flash slide show on id. What are seismic waves seismic waves are the vibrations from earthquakes that travel through the earth they are the waves of energy suddenly created by. Ground wave propagation is a method of radio wave propagation that uses the area between the surface of the earth and the ionosphere for transmission. It deals with fundamentals and theory, widescale considerations and prediction methods used for compatibility. Ppt radio wave propagation powerpoint presentation. Due to these fluctuations in ionosphere, fluctuation also produced in reflected wave relative to surface wave resulting in severe fading of combined wave. The radio waves having high frequencies are basically called as space waves. Sep 26, 2019 antenna and wave propagation notes pdf here we provide complete free lecture notes of antenna and wave propagation. These waves have the ability to propagate through atmosphere, from transmitter antenna to. Ictpituursi school on wireless networking for development the abdus salam international centre for theoretical physics ictp, trieste italy, 6 to 24 february 2006.
In this discussion, we will study what are electromagnetic waves, discuss maxwell equations and study the methods of generation and. Due to its design, the template may serve as a guide or instruction as well as an infographic or useful tools for business projects. Antenna and wave propagation pdf notes book starts with the topics covering antenna basics, thin linear wire antennas, antenna arrays. Download free waves ppt templates for swirly slides. At such higher frequencies the other wave propagation techniques like sky wave propagation, ground wave propagation cant work. While a rigorous analysis of an antenna is highly mathematical, often a simpli. View and download powerpoint presentations on antenna and wave propagation ppt. Here you can get complete study material of antenna and wave propagation notes with a single downloadable link.
Space wave propagation line of sight these waves occur within the lower 20 km of the atmosphere i. Rotheram 18, 19, 20 explored the influence of the earths atmosphere on surface wave propagation, and went on to develop a generalpurpose groundwave prediction method and an associated computer program. Ppt for wave propagation free download as pdf file. The waves ppt is a unique slide for informative and creative presentations.
Give a modern look to your presentations with free waves powerpoint templates. Ppt radio wave propagation powerpoint presentation free to download id. This chapter describes the different ways that electromagnetic waves propagate. Displaying powerpoint presentation on radio wave propagation available to view or download. Ground wave radio propagation is used to provide relatively local radio communications coverage, especially by radio broadcast stations that require to cover a particular locality. Multicolored waves with icons in circles and text blocks comprise the slide.
Alternatively, you may be looking for cool rocker themed free waves ppt backgrounds, and there are lots of these available. Find powerpoint presentations and slides using the power of, find free presentations research about antenna and wave propagation ppt. Lineofsight propagation above 30 mhz neither ground nor sky wave propagation operates transmitting and receiving antennas must be within line of sight osatellite communication signal above 30 mhz not reflected by ionosphere oground communication antennas within effective line of site due to refraction. Here you can download the free lecture notes of antenna and wave propagation notes pdf awp notes pdf materials with multiple file links to download. Download link for ece 6th sem ec6602 antenna and wave propagation lecture notes are listed down for students to make perfect utilization and score maximum marks with our study materials. One of the most methodical treatments of electromagnetic wave propagation, radiation, and scatteringincluding new applications and ideas presented in two parts, this book takes an analytical approach on the subject and emphasizes new ideas and applications used today. Radio wave propagation a free powerpoint ppt presentation displayed as a flash slide show on id. Upon discovery of the other propagation modes possible at medium wave.
This includes the 80, 40, 30, 20, 17, 15, 12, and 10 meter bands. Antennas and wave propagation is written for the first course on the same. Sky wave propagation free download as powerpoint presentation. Part one covers fundamentals of electromagnetic wave propagation, radiation, and scattering. Characteristics of sound waves transverse and longitudinal waves classification of waves is according to the direction of propagation. Electromagnetic wave propagation, radiation, and scattering. Ec6602 awp notes, antenna and wave propagation lecture notes.
Basically the technique of space wave propagation is used in bands having very high frequencies. I, rahul kumar of class 3rd year 6th semester,ec branch, completed this power point presentation about wave propagation. Geometrical loss because of the power p on the spherical surface is constant for every spherical surface 4. Ppt radio wave propagation powerpoint presentation free. Many parameters decide the path taken by the wave such as heights of the transmitting and receiving antennas, the angle of launching at transmitting end, the frequency of operation polarization etc. So, it is also called as tropospherical propagation. Radio waves belong to a family of electromagnetic radiation. Open source software to simulate electromagnetic wave. An appreciable portion of ionospheric wave is returned to earth during night time which extends the service area of the station well beyond that covered by surface wave. To prevent interference with these services, amateur and experimental transmitters were restricted to the higher hf frequencies, felt to be useless since their ground wave range was limited. These waves occur within the lower 20 km of the atmosphere, and are comprised of a direct and reflected wave. The book begins with an introduction that discusses the fundamental concepts, notations, representation and principles that govern selection from antennas and wave propagation book. Notes for antenna and wave propagation awp by ravikumar kumar lecture notes, notes, pdf free download, engineering notes, university notes, best pdf notes, semester, sem, year, for all, study material.
Waves take many routes on their way to reach the receiver. Understanding radio wave propagation can mean the difference between making and missing a contact to a particular part of the world. E and h oscillate in phase and ratio of their amplitudes is constant and is equal to. Antenna theory types of propagation tutorialspoint. The handbook on ground wave propagation is of special interest for communication, particularly broadcasting, at the lower frequencies where the mode has been in use for more than 90 years. Correct dimensioning with respect to radiowave propagation effects is of crucial. Whitham published for the tata institute of fundamental research, bombay springerverlag berlin heidelberg new york. This document is highly rated by civil engineering ce students and has been viewed 642 times. Ground wave propagation is particularly important on the lf and mf portion of the radio spectrum.
Transverse waves can be modelled by moving one end of a. Antenna theory types of propagation in this chapter, let us go through different interesting topics such as the properties of radio waves, the propagation of radio waves and their types. Transverse waves in transverse waves, each particle oscillates perpendicular to the direction of propagation of the wave. Ppt for wave propagation radio propagation ionosphere scribd. Radio wave propagation radio propagation is the behavior of radio waves when they are transmitted, or propagated from one point on the earth to another, or into various parts of the atmosphere. The adobe flash plugin is needed to view this content. Ground wave propagation is a method of radio frequency propagation that uses the area between the surface of the earth and the ionosphere for transmission.