Microwave VSWR Measurement on Oscilloscope

Discussion in 'General Electronics Chat' started by vinodquilon, Mar 21, 2011.

  1. vinodquilon

    Thread Starter Member

    Dec 24, 2009
    234
    0
    I am using the microwave testbench shown in figure for Standing Wave Ratio measurement.
    I have two choices:
    one using VSWR Meter,other using CRO.
    Can I apply the direct formula (SWR=maximum voltage/minimum voltage) to the square wave
    displayed on CRO ?

    But according to lab manual (SWR=Square root of maximum voltage/Square root of minimum

    voltage). Why we are taking the square root ?


    [img=http://s3.postimage.org/1bl5dl9xg/vswr.jpg]
     
  2. SgtWookie

    Expert

    Jul 17, 2007
    22,182
    1,728
Loading...