this question in communication system Explain why Microwave

this question in communication system

Explain why Microwave and RF are preferred in wireless communication?

Solution

Microwaves are radio waves with frequencies higher than television signals. The wavelengths of microwaves are of the order of a few millimeters. We know that sound waves spread and bend around the corner of an obstacle. This is because the wavelength of sound wave is generally comparable to the size of the obstacle. Unlike a sound wave, a light wave keeps itself along a straight path. Moreover, the light waves bend by only a small amount at the corners of the obstacles. This is because the wavelength of light waves is smaller as compared to the wavelength of sound waves. Thus, lesser the wavelength of a wave, smaller is its bending at the corners of ordinary obstacles and greater the ability of the wave to follow a straight path. The wavelength of microwaves is very small as compared to the wavelength of radio waves. So, microwaves are better suited to beam signals in a particular direction.