R&S
®
ZVA / R&S
®
ZVB / R&S
®
ZVT Measurement Examples
Port Conversion
Operating Manual 1145.1084.12 – 30 86
2. Establish the necessary Channel settings (port configuration, sweep range and type etc.) and
select the measured quantities (Trace – Measure).
3. Click Channel – Mode – Virtual Transform – Single Port Embedding to open the Single Port
Embedding... dialog.
4. In the dialog, select the Physical Port to which you want to add a virtual transformation network
(e.g. Physical Port 1) and do one of the following:
5. If you wish to define the added network by an imported set of 2-port S-parameters, select the 2-
Port transformation network, click Read Data From File, and load the parameters from a 2-port
(*.s2p) Touchstone file.
6. If you wish to define the added network by an equivalent circuit, select the circuit type and adjust
the parameters R, C, and L displayed in the right half of the dialog.
7. Click Embed DUT and Close the dialog.
The traces of the active channel show the characteristics of the DUT including the virtual transformation
network inserted between port 1 of the analyzer and the DUT.
You can also assign two-port networks to balanced ports; see Combination of 2-Port and 4-Port (De-
)Embedding Networks.
To remove a real transformation network from a single-ended port...
Suppose that your 2-port DUT has a real, known 2-port transformation network at port 1.
1. Connect the DUT (including the transformation network) between test ports 1 and 2 of the
analyzer so that the transformation network is placed between port 1 of the analyzer and the DUT.
2. Establish the necessary Channel settings (port configuration, sweep range and type etc.) and
select the measured quantities (Trace – Measure).
3. Click Channel – Mode – Virtual Transform – Single Port Deembedding to open the Single Port
Deembedding... dialog.
4. In the dialog, select the Physical Port connected to the physical transformation network (e.g.
Physical Port 1) and do one of the following:
5. If your transformation network is described by an imported set of 2-port S-parameters, select the
2-Port transformation network, click Read Data From File, and load the data from a 2-port (*.s2p)
Touchstone file.
6. If your transformation network can be described by an equivalent circuit, select the circuit type and
adjust the parameters R, C, and L displayed in the right half of the dialog.
7. Click Deembed DUT and Close the dialog.
The traces of the active channel show the characteristics of the DUT without the effects of the removed
physical transformation network.
You can also assign two-port networks to balanced ports; see Combination of 2-Port and 4-Port (De-
)Embedding Networks.
To add a virtual transformation network to a balanced port...
Suppose that your DUT has a single-ended and a balanced port and that you want to add a virtual 4-port
network to the balanced port.
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