Standing Wave Ratio (SWR)

The ratio of the amplitude of a StandingWave at an Anti-Node (minimum) to the amplitude at an adjacent node (maximum). (188) Note 1: The standing wave ratio (SWR ) in a uniform transmission line is given by:

where 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.

Taken from a thread on the NycWireless MailingList:


StandingWaveRatio (last edited 2007-11-23 18:00:59 by localhost)