The Role of IEEE in Frequency Band Designation The table above presents the ITU classification of frequency bands. According to ITU, the electromagnetic spectrum is classified into various frequency bands with band numbers ranging from 1 to 12. They promote the global sharing of the electromagnetic spectrum and help to improve telecommunication infrastructure, thereby participating in global development. ![]() The ITU coordinates the generation and transmission of these electromagnetic frequency bands along with the regulatory laws of the region where they are being used. The ITU frequency bands range from the lowest frequency to ten times the lowest frequency. ![]() The frequency bands are designated by the International Telecommunication Union (ITU). Terahertz or tremendously high frequency (THF) These subranges fall under specific frequency bands. There are several subranges available in the electromagnetic spectrum, namely radio waves, microwaves, X-rays, infrared rays, and gamma rays. The electromagnetic spectrum spans from very long radio waves to very short gamma rays. Usually, the electromagnetic spectrum is described as the set of frequencies arranged in ascending order that comprises all the different forms of electromagnetic radiation present in the universe. In the electromagnetic spectrum, the higher the frequency, the lower the wavelength. The frequency and wavelength are inversely proportional to each other. The electromagnetic spectrum covers all the electromagnetic radiations arranged according to their frequency and wavelength. The electromagnetic energy spreads out in the form of visible light, radio waves, infrared rays, gamma rays, etc. The Electromagnetic SpectrumĮlectromagnetic radiation is one of the forms in which energy travels through space. The different frequency bands of the electromagnetic spectrum are allocated for various applications. The electromagnetic spectrum is the set of all frequencies and the energy transmitted over electromagnetic waves is highly regulated based on frequency bands.Ī frequency band can be described as a collection of frequencies ranging from a lower frequency to a higher frequency. Have you ever wondered how it is possible to use a car radio and cellphone simultaneously? Both are some sort of wireless communication, but what allows their existence in one place without any interruption? This is all due to the electromagnetic spectrum.Ĭellphones and car radios utilize different frequency bands of the electromagnetic spectrum for wireless signal transmission, which helps them to coexist without much chaos. ![]() The electromagnetic spectrum covers all the electromagnetic radiations arranged according to their frequency and wavelength THF is utilized as an alternative to X-ray and is used in TeraHertz frequency imaging. The MF band covers AM broadcasting, coast-to-sea communication, emergency distress signals, etc. The ELF band is used for underwater communications, especially for pipeline transportation.
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