Rohde & Schwarz 1145.1010.04/05/06, Operating Manual

Page: 325 / 813

R&S
®
ZVA/ZVB/ZVT Channel Menu
1145.1084.12 4.163 E-6
The port configurations are arranged in a scrollable list and selected with a mouse click . The resulting
port number assignment is shown on the left-hand side of the Balanced and Measured Ports dialog and
in the Port Configuration dialog.
Predefined Configurations
The number of type of predefined configurations depends on the port number of the analyzer.
The predefined configurations comprise the fully single-ended (unbalanced) case, where the logical
ports correspond to the physical ports, and all balanced configurations where two adjacent physical
ports are connected to a logical port. In addition configurations where one or more ports are excluded
from the measurement are provided (see
Measured Ports) .
Example: 4-port analyzer
•
Fully unbalanced: Physical ports no. 3, 1, 4, 2 connected to logical ports (DUT ports) 3, 1, 4, 2.
•
One balanced port:
•
a) Physical ports no. 3 and 1 connected to logical port 1, remaining ports unbalanced.
b) Physical ports no. 4 and 2 connected to logical port 2, remaining ports unbalanced.
•
Two balanced ports: Physical ports no. 3 and 1 connected to logical port 1, physical ports no. 4
and 2 connected to logical port 2.
•
In additional configurations one, two or three ports (marked as ) are excluded from the
measurement.
To define a non standard configuration or use different port impedances, select the Def. Balanced
Port tab.
Remote control: SOURce<Ch>:LPORt<log_port> <phys_port1>,<phys_port2>
(no extra command for predefined configurations)