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Calibration and Compensation Procedure without Using
Dedicated Test Fixture
The following describes the calibration and compensation procedure when the dedicated
test fixture is not used. In this case, the test head coaxial terminal is extended, and the DUT
is connected to the tip of the terminal. When you want to connect the Agilent 4287A to the
handler to perform Automatic sorting, follow the steps below.
1. Test head coaxial terminal used as calibration reference plane
Follow the calibration compensation steps shown in Table 6-5 when the test head coaxial
terminal is used as a calibration reference plane.
Table 6-5
Calibration and compensation using test head coaxial terminal as calibration
reference plane
Required calibration
Open/short/load calibration
Low-loss capacitor calibration
Port extension compensation
(Fixture selection)
*4
Open/short compensation
*1. Perform DC open/short/load calibration as required.
*2. It is not always necessary to use a 7-mm terminal.
*3. This calibration is performed only when high-accuracy high-Q measurement (low dissipation factor measure-
ment) is required at about 1 GHz or more. It should be noted, however, that this can be performed only when the
7-mm terminal is used as a calibration reference plane since the 7-m low-loss capacitor is used.
*4. Also performs DC open/short compensation if required.
1. How to define calibration and compensation kit and how to register electrical
length for port extension compensation.
Step 1. Check the definition of the calibration kit to be used according to"How to Define
Calibration Kit" on page 145 and change it if required.
Step 2. Check the definition of the compensation kit to be used according to "How to Define
Compensation Kit" on page 147 and change it if required.
Step 3. Register the electrical length data from the calibration reference plane to the DUT plane
according to"Registering the Electrical Length of Unregistered Test Fixtures" on page
149.
2. How to select the measurement point table
To perform calibration data measurement for only one of the eight measurement point
Chapter 6
Calibration and Compensation Procedure without Using Dedicated Test
Position to be calibrated
*1
Test head coaxial terminal
as calibration reference plane)
*3
Calibration reference plane
(Input electrical length from
calibration reference plane to DUT
connection plane)
DUT connection terminal
Calibration and Compensation
Standard used
*2
Open/short/load calibration kit
(used
(e.g. 16195B for 7-mm terminal)
7-mm low-loss capacitor included
with the 16195B
Not used
Not used
Fixture
135
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