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2. Electromagnetic spectrum - Wikipedia

   en.wikipedia.org/wiki/Electromagnetic_spectrum

   The electromagnetic spectrum is the full range of electromagnetic radiation, organized by frequency or wavelength. The spectrum is divided into separate bands, with different names for the electromagnetic waves within each band. From low to high frequency these are: radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and ...

3. E band (waveguide) - Wikipedia

   en.wikipedia.org/wiki/E_band_(waveguide)

   The waveguide E band is the range of radio frequencies from 60 GHz to 90 GHz in the electromagnetic spectrum, [1] [2] corresponding to the recommended frequency band of operation of WR12 waveguides. These frequencies are equivalent to wave lengths between 5 mm and 3.333 mm. The E band is in the EHF range of the radio spectrum

4. Orders of magnitude (frequency) - Wikipedia

   en.wikipedia.org/.../Orders_of_magnitude_(frequency)

   Electromagnetic – the hyperfine transition of hydrogen, also known as the hydrogen line or 21 cm line 2.4 GHz: Electromagnetic – microwave ovens, wireless LANs and cordless phones (starting in 1998) 2.6–3.8 GHz: A common desktop CPU speed as of 2014 5.8 GHz: Electromagnetic – cordless telephone frequency introduced in 2003 10 10: 10 GHz

5. List of textbooks in electromagnetism - Wikipedia

   en.wikipedia.org/wiki/List_of_textbooks_in...

   Schantz also continues that concepts like impedance, Smith chart, antenna, and electromagnetic energy flow, are not appreciated by physicists. [163] Mathematician Sergei Schelkunoff who made many contributions to engineering electromagnetism also noted differences between physicist's and electrical engineer's view in electromagnetism.

6. Spectrum (physical sciences) - Wikipedia

   en.wikipedia.org/wiki/Spectrum_(physical_sciences)

   The radio spectrum is the part of the electromagnetic spectrum corresponding to frequencies lower below 300 GHz, which corresponds to wavelengths longer than about 1 mm. The microwave spectrum corresponds to frequencies between 300 MHz (0.3 GHz ) and 300 GHz and wavelengths between one meter and one millimeter.

7. K band (IEEE) - Wikipedia

   en.wikipedia.org/wiki/K_band_(IEEE)

   The IEEE K-band is a portion of the radio spectrum in the microwave range of frequencies from 18 to 27 gigahertz (GHz). The range of frequencies in the center of the K-band between 18 and 26.5 GHz are absorbed by water vapor in the atmosphere due to its resonance peak at 22.24 GHz, 1.35 cm (0.53 in).

8. Spectral band - Wikipedia

   en.wikipedia.org/wiki/Spectral_band

   Most often, it refers to electromagnetic bands, regions of the electromagnetic spectrum. [1] More generally, spectral bands may also be means in the spectra of other types of signals, e.g., noise spectrum. A frequency band is an interval in the frequency domain, limited by a lower frequency and an

9. Classical electromagnetism - Wikipedia

   en.wikipedia.org/wiki/Classical_electromagnetism

   A changing electromagnetic field propagates away from its origin in the form of a wave. These waves travel in vacuum at the speed of light and exist in a wide spectrum of wavelengths . Examples of the dynamic fields of electromagnetic radiation (in order of increasing frequency): radio waves , microwaves , light ( infrared , visible light and ...