Keysight Technologies 16197A, Operation And Service Manual

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Keysight16197A Operation and Service Manual 59
Specifications and Supplemental Performance Characteristics
Residual Inductance of the Shorting Bar
Residual Inductance of the Shorting Bar
The usual method to compensate the test fixture's residual inductance is to let
SHORT = 0H. In this method, the measurement result is the relative value of
the measured impedance to the shorting bar's impedance. The short bar's
residual inductance as a result of its size and shape is not estimated.
On the other hand, there is a definition method to let SHORT = x H. In this
method, the measurement result is the absolute value of the device's
impedance. The short bar's residual inductance as a result of its size and shape
is estimated under specific conditions and is used as a reference value. This
method, is useful for devices with values which are close to the short
conditions of the measurement system.
The reference inductance values presented Table 5-1 were simulated as the
relative difference to a disk-type 0 W termination on either the 7mm or the
3.5mm connector. The measurement of these short bars under other
conditions than shown below cannot reproduce the reference inductance
values.
Figure 5-2 Simulation Setup
Table 5-1 Residual Inductance (Typical)
Shorting Bar Set 1 [mm] d [mm] h [mm] Offset [mm] Connector Inductance
(Typical)
0.6 x 0.3 x 0.3 0.6 0.3 0.3 0.0585 1 mm 0.1nH
1.0 x 0.5 x 0.5 1.0 0.5 0.5 0.75 3.5 mm 0.5 nH
1.6 x 0.8 x 0.8 1.6 0.8 0.8 0.45 3.5 mm 0.4 nH
2.0 x 1.2 x 0.8 2.0 1.2 0.8 1.5 7 mm 0.9 nH
3.2 x 1.6 x 0.8 3.2 1.6 0.8 0.9 7 mm 0.8 nH