Rohde & Schwarz 1145.1010.04/05/06, Operating Manual

Page: 345 / 813

R&S
®
ZVA/ZVB/ZVT Channel Menu
1145.1084.12 4.183 E-6
Port Overview
Provides an overview of analyzer ports with their reference impedances and transformation networks for
(de-)embedding.
Each row in the Port Overview table corresponds to one logical or physical analyzer port; the number of
rows in the different columns is equal to the number of balanced ports or physical test ports of the
analyzer. The
buttons open different dialogs for test port configuration:
•
Reference Impedance defines complex impedances for balanced test ports.
•
Bal Port Deembedding and Bal Port Embedding show the 4-port transformation networks to be
added or removed at balanced (logical) ports. Off denotes that no (de)embedding operation is
performed.
•
Single Port Deembedding and Single Port Embedding show the 2-port transformation networks
to be added or removed at single ended (physical) or balanced (logical) ports. Off denotes that
no (de)embedding operation is performed.
Combination of 2-Port and 4-Port (De-)Embedding Networks
In the Port Overview dialog, it is possible to select a combination of 4-port and 2-port networks for (de-
)embedding at balanced (logical) ports, and to select 2-port networks for (de-)embedding at single
ended (physical) ports. The following example shows the full configuration for a four-port analyzer
where the physical ports 1 and 3 form a balanced port with the logical port no. 1 and the remaining
ports 2 and 4 are single ended.
The port overview configuration above corresponds to the measurement circuits shown in steps 1 to 5
below.