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Additional
voltage standing wave ratio
English Wikipedia - The Free Encyclopedia
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Standing wave ratio
In
radio engineering
and
telecommunications
,
standing wave ratio
(
SWR
) is a measure of
impedance matching
of
load
s to the
characteristic impedance
of a
transmission line
or
waveguide
. Impedance mismatches result in
standing waves
along the transmission line, and SWR is defined as the ratio of the partial
standing wave
's amplitude at an antinode (maximum) to the amplitude at a
node
(minimum) along the line.
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