Rohde & Schwarz 1145.1010.04/05/06, Руководство по эксплуатации

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Channel Menu R&S
®
ZVA/ZVB/ZVT
1145.1084.12 4.186 E-6
Single Port Embedding/Deembedding
Selects a 2-port transformation network for single port (de-)embedding, defines its parameters, assigns
it to a physical port and enables (de-)embedding. Single port (de-)embedding can be used for balanced
(logical) as well as for single ended (physical) ports. The two dialogs for deembedding and embedding
are identical except for their inverse effect.
The dialogs contain the following control elements:
•
Physical Port is the physical analyzer port for the added or removed circuit. The transformation
networks are defined such that the physical analyzer test port is connected to the left of the
circuit; the DUT port is on the right side.
•
(De-)embed DUT enables or disables the (de-)embedding function.
•
Transformation Network contains all available 2-port networks (see below). Networks are either
defined by lumped elements or by means of imported S-parameter data. The element
parameters (C, R, L) for the selected network are displayed on the right side.
•
Read Data From File... is enabled as long as the 2-Port Data network is active. This network is
defined by its S-parameters stored in a two-port Touchstone file (*.s2p). No additional
parameters are required.
•
Set to Ideal Through is enabled as long as the 2-Port Data network is active. An imported S-
parameter set is replaced by the S-parameters of an ideal through connection, which eliminates
the transformation network.
Circuit models for 2-port networks
The lumped element 2-port transformation networks for (de-)embedding consist of the following two
basic circuit blocks:
•
A capacitor C connected in parallel with a resistor.