Keysight U8480 Series - S-Parameter Correction

15 Programming Examples
368 U8480 Series Programming Guide
S-Parameter Correction
The S-Parameter Correction feature enables you to correct for the effect of 2-port
devices, for ideal and non-ideal DUTs in your test setup. For a non-ideal DUT, the
S-Parameter Correction is enabled in tandem with Gamma Correction (refer to
“Gamma Correction” on page 366). The following programming sequence
examples describe some simple commands to accomplish the following:
– Create a S-Parameter table
– Assign S-Parameter data as a magnitude-phase pair of values for a frequency
value
– Turn on S-Parameter Correction
->
MEM:TABL:SEL “SParam1” // Selects the S-Parameter table
named “SParam1”
->
MEM:TABL:FREQ 50MHz // Inputs a frequency of 50 MHz into
the selected table
->
MEM:TABL:SPAR S11,0.1,150 // Inputs the S11 magnitude-phase
pair values; 0.1 for magnitude, and
150
o
for phase
->
MEM:TABL:SPAR S12,0.9,45 // Inputs the S12 magnitude-phase
pair values; 0.9 for magnitude, and
45
o
for phase
->
MEM:TABL:SPAR S21,0.3,90 // Inputs the S21 magnitude-phase
pair values; 0.3 for magnitude, and
90
o
for phase
->
MEM:TABL:SPAR S22,0.7,–135 // Inputs the S22 magnitude-phase
pair values; 0.7 for magnitude, and
–135
o
for phase
->
SENS:CORR:CSET4:SEL “SParam1” // Selects “SParam1” as the table to
be used for S-Parameter Correction
->
SENS:CORR:CSET4:STAT ON // Turns on S-Parameter Correction
->
FREQ 50MHz // Sets the measurement frequency to
50 MHz