R3765/67G Series Network Analyzer Operation Manual
7.10 Software Fixture Function (OPT 71/72)
7-99
7.10.2 Function
7.10.2.1 Network Elimination Function
The network elimination function allows you to accurately measure DUT characteristics by elim-
inating a complete 2-port network, including the phase, magnitude and impedance for each port
and extending a calibration plane.
When the characteristics of the measurement jig have been obtained in advance, this function
allows you to measure the characteristics of a DUT with the jig characteristics eliminated using
this function.
The port extension and network elimination functions can be used at the same time (see Figure
7-12).
The network to be eliminated is set using the S-parameter file (user defined circuit file) in T.S file
format (Touchstone file).
Figure 7-12 Measurement Flow Used with Network Elimination Function
7.10.2.2 Impedance Conversion Function
Measures impedance converted into an arbitrary normalized impedance (a real number value)
for each port.
•
Dynamic range when changing the impedance
When measuring devices with impedance other than 50
Ω
using the impedance conversion
function, the dynamic range is attenuated if compared with measurements of 50
Ω
devices.
The following graph shows the attenuation ratio.
Use the graph as a guide to obtain the maximum dynamic range during measurement.
