The quality of the match is commonly expressed in terms of the standing wave ratio (SWR) of this standing wave. Standing wave ratio (SWR) is defined as the ratio of the maximum magnitude of the standi...The quality of the match is commonly expressed in terms of the standing wave ratio (SWR) of this standing wave. Standing wave ratio (SWR) is defined as the ratio of the maximum magnitude of the standing wave to minimum magnitude of the standing wave. SWR is often referred to as the voltage standing wave ratio (VSWR), although repeating the analysis above for the current reveals that the current SWR is equal to potential SWR, so the term “SWR” suffices.
