What is wave propagation in antenna?
The waves, which are transmitted from the transmitter antenna, are reflected from the ionosphere. Such a travel of the wave from transmitter to the ionosphere and from there to the receiver on Earth is known as Sky Wave Propagation.
What is wave propagation theory?
Wave propagation is any of the ways in which waves travel. With respect to the direction of the oscillation relative to the propagation direction, we can distinguish between longitudinal wave and transverse waves. For electromagnetic waves, propagation may occur in a vacuum as well as in the material medium.
Why we study antenna and wave propagation?
The study of antennas and electromagnetic wave propagation is essential to a complete understanding of radio communications, radar, cell phones, and other electronic communication systems. This course handles the basics of antennas and wave propagation. There are lots of different types of antennas.
What is wave propagation and types?
Hint: There are three types of modes of propagation of electromagnetic waves: Ground wave propagation, Space wave propagation and Skywave propagation. Electromagnetic waves in the frequency range of a few Hz to about 1011Hz are generally called radio waves.
How do wave propagate?
A wave can be thought of as a disturbance or oscillation that travels through space-time, accompanied by a transfer of energy. The direction a wave propagates is perpendicular to the direction it oscillates for transverse waves. A wave does not move mass in the direction of propagation; it transfers energy.
What is wave propagation and its types?
Hint: There are three types of modes of propagation of electromagnetic waves: Ground wave propagation, Space wave propagation and Skywave propagation. Ground waves are radio waves that travel or propagate along the surface of the earth. These radio waves induce a current in the ground from which they pass.
How does wave propagation work?
Why do we need to study radio wave propagation?
The study of radio propagation, how radio waves move in free space and over the surface of the Earth, is vitally important in the design of practical radio systems. Radio waves passing through different environments experience reflection, refraction, polarization, diffraction, and absorption.
What you understand by radiation pattern of antenna explain it using an example?
In the field of antenna design the term radiation pattern (or antenna pattern or far-field pattern) refers to the directional (angular) dependence of the strength of the radio waves from the antenna or other source. Other software, like HFSS can also compute the near field.
Who are the professors of antennas and wave propagation?
Antennas &Wave Propagation Prepared By A. Usha Rani Assistant Professor J. Shiva Ramakrishna Assistant Professor G. Nagendra Prasad, Assistant Professor K. Ravi Assistant Professor Basic Antenna Theory Purpose • to refresh basic concepts related to the antenna physics
What are the four modes of radio propagation?
•There are four basic modes of getting a radio wave from the transmitting to a receiving antenna: –Ground Wave –Space Wave –Sky Wave –Satellite Communication (SATCOM) •The frequency of the radio wave is of primary importance in considering the performance of each type of propagation Ground-Wave Propagation
What do you need to know about wave propagation?
To understand wave propagation, you must have at least a basic understanding of the earth’s atmosphere. The earth’s atmosphere is divided into three separate regions, or layers. They are the troposphere, the stratosphere, and the ionosphere.
How are transmitting and receiving antennas related to each other?
We use a transmitting antenna to radiate radio wave and a receiving antenna to capture the RF energy carried by the wave. Somebody told that the receiving antenna also radiates radio waves during the reception. Is it a true fact or a slip of the tongue?