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PD1000A Power Device Measurement System for Advanced Modeling
Startup Guide
3
On State and Off State
S-Parameter Characterization
Network analyzers are the fundamental instrument for characterization of the
devices and components used in RF and microwave systems. Swept frequency
instruments, like network analyzers, provide a direct measurement of transfer
functions by sweeping a signal source and a tuned receiver across a range of
frequencies. Two-port measurements provide explicit characterization of linear
system blocks with a single input and a single output, by far the most common
type of element.
In its simplest format, a reference excitation is applied to one port, and the
response from the other port is recorded as a function of the sweep frequency.
Scattering parameters, or S-parameters for short, are the working language of
network analyzers (NA). They provide a complete description of any linear,
time-invariant element which then fully represents the behavior of that element
within any system that it may be connected to. Scattering parameters involve
phase information, and are thus complex phasor quantities. They are also
frequency dependent. Once known, they can be transformed into other network
parameters for circuit design, optimization, or tuning.
In this Chapter:
page 64
page 66
page 78
Important Licensing Information: The PD1000A Control Software
requires a license, PD1000A-1FP, to run the S-Parameter tests.
Refer to
"Install S-Parameter Control Software License"
page 20 for detailed licensing information.
page 19
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