Millimeter wave (MM wave), also known as millimeter band, is the band of spectrum with wavelengths between 10 millimeters (30 GHz) and 1 millimeter (300 GHz). It is also known as the extremely high frequency (EHF) band by the International Telecommunication Union (ITU) .
Read moreWho gave electromagnetic wave theory?
About 150 years ago, James Clerk Maxwell , an English scientist, developed a scientific theory to explain electromagnetic waves. He noticed that electrical fields and magnetic fields can couple together to form electromagnetic waves.
Read moreWhat is Maxwell’s electromagnetic wave theory?
In his formulation of electromagnetism, Maxwell described light as a propagating wave of electric and magnetic fields . More generally, he predicted the existence of electromagnetic radiation: coupled electric and magnetic fields traveling as waves at a speed equal to the known speed of light.
Read moreWhat are the characteristics of electromagnetic wave theory?
The inherent characteristic of an electromagnetic wave is its frequency . Their frequencies remain unchanged but its wavelength changes when the wave travels from one medium to another. Electromagnetic wave follows the principle of superposition.
Read moreHow do you find the frequency of an electromagnetic wave?
Electromagnetic waves are transverse waves. The wave number is k = 2π/λ, where λ is the wavelength of the wave. The frequency f of the wave is f = ω/2π , ω is the angular frequency.
Read moreWhat electromagnetic wave has the highest frequency?
Gamma rays have the highest energies, the shortest wavelengths, and the highest frequencies. Radio waves, on the other hand, have the lowest energies, longest wavelengths, and lowest frequencies of any type of EM radiation.
Read moreWhat are the 7 types of electromagnetic waves in order of increasing frequency?
EM radiation is classified into types according to the frequency of the wave: these types include, in order of increasing frequency, radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays and gamma rays .
Read more