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  2. Electromagnetic spectrum - Wikipedia

    en.wikipedia.org/wiki/Electromagnetic_spectrum

    A diagram of the electromagnetic spectrum, showing various properties across the range of frequencies and wavelengths. 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.

  3. File:EM Spectrum Properties (Amplitude Corrected, Bitmap).png

    en.wikipedia.org/wiki/File:EM_Spectrum...

    Date/Time Thumbnail Dimensions User Comment; current: 21:43, 3 September 2023: 1,616 × 939 (201 KB): BalalaikaMaster: A diagram of the electromagnetic spectrum showing the type, wavelength (with examples), frequency, and black body emission temperature, with corrected amplitude, as a bitmap PNG.

  4. 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.

  5. 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.

  6. Ka band - Wikipedia

    en.wikipedia.org/wiki/Ka_band

    The K a band (pronounced as either "kay-ay band" or "ka band") is a portion of the microwave part of the electromagnetic spectrum. The designation "K a-band" is from Kurz-above, which stems from the German word kurz, meaning "short". [1] There is no standard definition of Ka-band.

  7. Absorption band - Wikipedia

    en.wikipedia.org/wiki/Absorption_band

    In spectroscopy, an absorption band is a range of wavelengths, frequencies or energies in the electromagnetic spectrum that are characteristic of a particular transition from initial to final state in a substance. According to quantum mechanics, atoms and molecules can only hold certain defined quantities of energy, or exist in specific states. [1]

  8. Spectral band - Wikipedia

    en.wikipedia.org/wiki/Spectral_band

    A spectrum with various bands. Spectral bands are regions of a given spectrum, having a specific range of wavelengths or frequencies. 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.

  9. Emission spectrum - Wikipedia

    en.wikipedia.org/wiki/Emission_spectrum

    An emission spectrum is formed when an excited gas is viewed directly through a spectroscope. Schematic diagram of spontaneous emission. Emission spectroscopy is a spectroscopic technique which examines the wavelengths of photons emitted by atoms or molecules during their transition from an excited state to a lower energy state.