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  2. Attenuator (electronics) - Wikipedia

    en.wikipedia.org/wiki/Attenuator_(electronics)

    An attenuator is a passive broadband electronic device that reduces the power of a signal without appreciably distorting its waveform. An attenuator is effectively the opposite of an amplifier, though the two work by different methods. While an amplifier provides gain, an attenuator provides loss, or gain less than unity. An attenuator is often ...

  3. Π pad - Wikipedia

    en.wikipedia.org/wiki/Π_pad

    Schematic circuit of a Π-pad attenuator. The Π pad (pi pad) is a specific type of attenuator circuit in electronics whereby the topology of the circuit is formed in the shape of the Greek capital letter pi (Π). Attenuators are used in electronics to reduce the level of a signal.

  4. T pad - Wikipedia

    en.wikipedia.org/wiki/T_pad

    A T-pad attenuator formed from two symmetrical L sections. Because of the symmetry, R 1 = R 3 in this case. For an attenuator, Z and Y are simple resistors and γ becomes the image parameter attenuation (that is, the attenuation when terminated with the image impedances) in nepers. A T pad can be viewed as being two L sections back-to-back as ...

  5. Attenuation - Wikipedia

    en.wikipedia.org/wiki/Attenuation

    The attenuation in the signal of ground motion intensity plays an important role in the assessment of possible strong groundshaking. A seismic wave loses energy as it propagates through the earth (seismic attenuation). This phenomenon is tied into the dispersion of the seismic energy with the distance. There are two types of dissipated energy:

  6. Attenuator - Wikipedia

    en.wikipedia.org/wiki/Attenuator

    Attenuator (electronics), an electronic device that reduces the amplitude of an electronic signal. Optical attenuator, an electronic device that reduces the amplitude of an optical signal. Attenuator (genetics), a specific regulatory sequence transcribed into RNA. Impact attenuator, used on highways as a crumple zone in case of a car crash.

  7. Traveling-wave tube - Wikipedia

    en.wikipedia.org/wiki/Traveling-wave_tube

    Attenuators placed along the RF circuit prevent the reflected wave from traveling back to the cathode. Higher powered helix TWTs usually contain beryllium oxide ceramic as both a helix support rod and in some cases, as an electron collector for the TWT because of its special electrical, mechanical, and thermal properties.

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