Agilent Technologies ENA Series Betriebsanweisung Seite 305

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Chapter 7 299
Fixture Simulator
Evaluating Balanced Devices (balance-unbalance conversion function)
7. Fixture Simulator
Imbalance parameter
By turning on the balance-unbalance conversion function, you can select the imbalance
parameter of the balanced port as the measurement parameter. Figure 7-13 to Figure 7-15
show the imbalance parameter you can select when measuring each balanced device.
Figure 7-13 Parameter when measuring a single-ended - balanced device (Imbalance)
Figure 7-14 Parameter when measuring a balanced - balanced device (Imbalance1, Imbalance2)
Figure 7-15 Parameter when measuring a single-ended - single-ended - balanced device
(Imbalance1, Imbalance2, Imbalance3, Imbalance4)
CMRR (Common Mode Rejection Ratio)
By turning on the balance-unbalance conversion function, you can select CMRR (ratio
between the transmission characteristic in the differential mode and that in the common
mode) of the balanced port as the measurement parameter. The table below shows the
CMRR parameter you can select when measuring each balanced device.
Single-ended - balanced device
and
Balanced - balanced device
Single-ended - single-ended - balanced device
and
S
ds21
S
cs21
------------
S
sd12
S
sc12
------------
S
dd21
S
cc21
-------------
S
ds31
S
cs31
------------
S
ds32
S
cs32
------------
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