Agilent Technologies ESA-E Series, User Manual

Page: 33 / 46

Chapter 3 27
Making Measurements
Making Return Loss Measurements
Converting Return Loss to VSWR
Return loss can be expressed as a voltage standing wave ratio (VSWR) value using
the following table or formula:
Table 3-3 Power to VSWR Conversion
Return
Loss
(dB) VSWR Return
Loss
(dB) VSWR Return
Loss
(dB) VSWR Return
Loss
(dB) VSWR Return
Loss
(dB) VSWR
4.0 4.42 14.0 1.50 18.0 1.29 28.0 1.08 38.0 1.03
6.0 3.01 14.2 1.48 18.5 1.27 28.5 1.08 38.5 1.02
8.0 2.32 14.4 1.47 19.0 1.25 29.0 1.07 39.0 1.02
10.0 1.92 14.6 1.46 19.5 1.24 29.5 1.07 39.5 1.02
10.5 1.85 14.8 1.44 20.0 1.22 30.0 1.07 40.0 1.02
11.0 1.78 15.0 1.43 20.5 1.21 30.5 1.06 40.5 1.02
11.2 1.76 15.2 1.42 21.0 1.20 31.0 1.06 41.0 1.02
11.4 1.74 15.4 1.41 21.5 1.18 31.5 1.05 41.5 1.02
11.6 1.71 15.6 1.40 22.0 1.17 32.0 1.05 42.0 1.02
11.8 1.69 15.8 1.39 22.5 1.16 32.5 1.05 42.5 1.02
12.0 1.67 16.0 1.38 23.0 1.15 33.0 1.05 43.0 1.01
12.2 1.65 16.2 1.37 23.5 1.14 33.5 1.04 43.5 1.01
12.4 1.63 16.4 1.36 24.0 1.13 34.0 1.04 44.0 1.01
12.6 1.61 16.6 1.35 24.5 1.13 34.5 1.04 44.5 1.01
12.8 1.59 16.8 1.34 25.0 1.12 35.0 1.04 45.0 1.01
13.0 1.58 17.0 1.33 25.5 1.11 35.5 1.03 45.5 1.01
13.2 1.56 17.2 1.32 26.0 1.11 36.0 1.03 46.0 1.01
13.4 1.54 17.4 1.31 26.5 1.10 36.5 1.03 46.5 1.01
13.6 1.53 17.6 1.30 27.0 1.09 37.0 1.03 47.0 1.01
13.8 1.51 17.8 1.30 27.5 1.09 37.5 1.03 47.5 1.01