
The Calibrate Menu
There are twelve different error terms for a two-port measurement that can be corrected
by accuracy enhancement in the analyzer. These are directivity, source match, load match,
isolation, reflection tracking, and transmission tracking, each in both the forward and reverse
direction. The analyzer has several different measurement calibration routines to characterize
one or more of the systematic error terms and remove their effects from the measured data.
The calibrate menu allows you to perform the measurement calibration routines. These
procedures range from a simple frequency response calibration to a full two-port calibration
that effectively removes all twelve error terms.
Response Calibration
The response calibration, activated by pressing the
within the calibrate
. . . . . . . . . . . .
menu, provides a normalization of the test setup for reflection or transmission measurements.
This calibration procedure may be adequate for measurement of well matched devices. This
is the simplest error-correction to perform, and should be used when extreme measurement
accuracy is not required.
Response and Isolation Calibration
The response and isolation calibration, activated by pressing the
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. . . . . ... . . . . . . . . . . .
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within the calibrate menu, provides a normalization for frequency response and crosstalk
errors in transmission measurements, or frequency response and directivity errors in reflection
measurements This procedure may be adequate for measurement of well matched high-loss
devices
and
One-Port Calibration
frequency response vector error-correction for reflection measurements. These procedures
provide high accuracy reflection measurements of one-port devices or properly terminated
two-port devices.
Full Two-Port Calibration
. . . I..
calibrate menu, provides directivity, source match, load match, isolation, and frequency
response vector error-correction, in both forward and reverse directions, for transmission and
reflection measurements of two-port devices. This calibration provides the best magnitude and
phase measurement accuracy for both transmission and reflection measurements of two-port
devices, and requires an S-parameter test set.
In this type of calibration, both forward and reverse measurements must be made. You have
the option of setting the ratio of the number of forward (or reverse) sweeps versus the number
. . . .
. . . . .
enter the number of sweeps desired.
Application and Operation Concepts
Содержание HP 8753E
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