Jump to content

Standing wave ratio

From Wikipedia, the free encyclopedia
This is an old revision of this page, as edited by 217.162.215.31 (talk) at 12:09, 15 May 2002 (*</b>). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

In telecommunication, standing wave ratio ( SWR ) is the ratio of the amplitude of a standing wave at an anti-node (minimum) to the amplitude at an adjacent node (maximum).

Note 1: The standing wave ratio (SWR ) in a uniform transmission line is given by where ρ is the reflection coefficient.

Note 2: Reflections occur as a result of discontinuities, such as an imperfection in an otherwise uniform transmission line, or when a transmission line is terminated with other than its characteristic impedance.

Source: from Federal Standard 1037C and from MIL-STD-188

Retrieved from "https://en.wikipedia.org/w/index.php?title=Standing_wave_ratio&oldid=229276"