The template for component data fiIes is as follows:

! comment line

t <frequency units> <parameter> <format> <Rn> <data line>

. . .

<data line>

where

 

!

indicates that ah following on this Iine is a comment

#

indicates that entries following on this Iine are parameters that are being

 

specified

frequency

GHz, MHz, kHz, Hz

units

 

parameter

S for S-parameters

format

DB for dI3 magnitude and angie in degrees

 

MA for linear magnitude and angle in degrees

 

RI for real and imaginary pair

Rn

the reference impedance in ohms for the analyzer making the measurement

 

(R 50 or R 75)

The “format” above is selected by the current selection under the FORMAT menu. lb select the DB format, the FORMAT must be LOG MAG. For MA, the FORMAT must be LIN MAG, and aII other FORMAT selections wiIi output RI data. The S2P data wiII always represent the format array data, including effects of electrical delay and port extensions A CITIfiIe wiII be saved at the same time. lb be consistent with previous versions, the CITIfiIe data saved wiII represent the DATA array (corrected data) without effects of electrical delay or port extensions.

Here is an S2P example fiie for an 11 point measurement of a 20 dB attenuator:

t HZ S DB R 5 0

! Network Analyzer HP8753E.0611

50000000 -56.74 15.178 -20.219 -2.0132 -20.15 -1.6658 -36.188 -123.52 250000000 -53.015 1.7331 -20.373 -10.241 -20.377 -10.029 -33.974 -40.215

450000000 -52.094 5.8173 -20.391 -18.555 -20.387 -17.96 -31.287 61.778

65OOOOOO0 -51.758 8.02 -20.189 -26.18 -20.112 -26.061 -29.427 153.37 850000000 -50.95 11.472 -20.163 -34.743 -20.198 -34.195 -24.719 -137.83 1050000000 -50.235 9.3562 -20.178 -42.682 -20.19 -42.289 -25.102 -81.096 1250000000 -49.883 9.2574 -20.142 -50.854 -20.223 -50.407 -27.582 -25.509

1450000000 -48.477 5.9944 -20.201 -58.917 -20.21 -58.436 -33.828 35.237

165OOOOOO0 -48.462 3.5156 -20.161 -67.008 -20.188 -66.587 -44.184 62.912

1850000000 -47.503 .1840 -20.15 -74.862 -20.208 -74.616 -36.893 35.384

2050000000 -46.938 -5.6538 -20.167 -83.048 -20.256 -82.874 -30.385 74.001

4-40 Printing, Plotting, and Saving Measurement Results

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Image 219
HP 8753E manual Template for component data fiIes is as follows Comment line