In the ground wave propagation, the antennas are placed vertically to the ground therefore the orientation of the waves is also vertical to the ground. Thus the transmitting and receiving antennas must not be present at a very large distance with respect to each other.īasically when the signal is transmitted or received to or from the antenna then the orientation of the waves depends upon the orientation of the antenna on the ground. We have already discussed in the beginning that ground wave propagation allows short-distance operation. In the above figure, it is clearly shown that two antennas are placed on the surface of the earth. Let us now understand how ground wave propagation takes place. So, in the ground wave propagation, the two antennas (i.e., transmitting and receiving) placed in the ground allow propagation of the signal in the form of electromagnetic waves through the earth’s surface. Therefore, we can say that for the propagation of electromagnetic waves, the last element of the transmitting end must be a transmitting antenna and the first element of receiving end must be a receiving antenna. The electromagnetic wave from transmitting antenna propagates and gets collected by the receiving antenna. So, for this, the two ends must necessarily contain transmitting and receiving antenna in order to allow signal propagation. We know the propagation of electromagnetic waves comes under wireless communication in which the space between transmitting and receiving antenna is utilized for the propagation of the signal. The name itself is indicating that in the ground wave propagation, the electromagnetic waves are propagated from an end to the other through the surface of the ground by gliding over it. Here in this article, we will discuss ground wave propagation. So, the transmission of radio waves in space from an end to another can be done using any one of the three ways:
#Antenna and wave propagation hyatt free#
Basically, electromagnetic waves are allowed to be propagated from transmitting antenna to receiving through a channel of free space. Wave propagation defines the way in which waves are transmitted from an end to another. We have already discussed the basics of the antenna along with its mechanism of operation in our previous article. Similarly, gamma rays are high-frequency range electromagnetic waves thus have the lowest wavelength among electromagnetic waves.
We know that radio waves hold the least frequency range among the electromagnetic waves and thus have the highest wavelength. The figure below shows the wavelength distribution of various electromagnetic waves:
The basic feature possessed by an electromagnetic wave is that the electric and magnetic fields are mutually perpendicular to the direction of propagation. These waves hold the ability to propagate with the speed of light (i.e., 3*10 8 m/s). are examples of electromagnetic waves that are different from each other because of the operating frequency range. Radio waves, UV rays, X-rays and microwaves, etc. Basically, electromagnetic waves are the type of waves that hold the ability to propagate without the need for any specific medium for propagation as they propagate in free space. Content: Ground Wave PropagationĮlectromagnetic waves are generated due to the vibrations in the electric and magnetic fields. Here in this article, we will understand how waves are propagated from an end to another using ground as a medium.
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