Encyclopedia > Attenuation constant

  Article Content

Attenuation constant

In telecommunication, the term attenuation constant has the following meanings:

1. The real part of the propagation constant in any electromagnetic propagation medium.

Note 1: The attenuation constant is usually expressed as a numerical value per unit length.

Note 2: The attenuation constant may be calculated or experimentally determined for each medium.

2. For a particular propagation mode in an optical fiber, the real part of the axial propagation constant[?].

Source: from Federal Standard 1037C

All Wikipedia text is available under the terms of the GNU Free Documentation License

  Search Encyclopedia

Search over one million articles, find something about almost anything!
  Featured Article
Ultraviolet light

... Health effects In general, UV-A is the least harmful, but causes sunburns at high exposures. High intensities of UV-B light are hazardous to the eyes, and ...