Rohde & Schwarz 1145.1010.04/05/06, Operating Manual

Page: 182 / 813

Trace Menu R&S
®
ZVA/ZVB/ZVT
1145.1084.12 4.20 E-6
The predefined wave quantities are obtained with different source ports. a1 Src Port 1, b1 Src Port 1
and b1 Src Port 2 are measured at Port 1 of the analyzer. a2 Src Port 2, b2 Src Port 1 and b2 Src Port
2 are measured at Port 2 of the analyzer.
•
a1 Src Port 1 is the wave transmitted at test port 1. In a standard S-parameter measurement,
this wave is fed to the input port (port 1) of the DUT (forward measurement).
•
b1 Src Port 1 is the wave received at test port 1. In a standard S-parameter measurement, this
is the reflected wave at port 1 of the DUT (forward measurement).
•
b2 Src Port 1 is the wave received at test port 2. In a standard S-parameter measurement, this
wave is transmitted at port 2 of the DUT (forward measurement).
•
a2 Src Port 2 is the wave transmitted at test port 2. In a standard S-parameter measurement,
this wave is fed to the output port (port 2) of the DUT (reverse measurement).
•
b1 Src Port 2 is the wave received at test port 1. In a standard S-parameter measurement, this
wave is transmitted at port 2 of the DUT (reverse measurement).
•
b2 Src Port 2 is the wave received at test port 2. In a standard S-parameter measurement, this
wave is fed to the output port (port 2) of the DUT (reverse measurement).
The analyzer can also measure wave quantities for other source ports; see More Wave Quantities .
Remote control: CALCulate<Ch>:PARameter:MEASure "<Trace_Name>", "A1" | ...
[SENSe<Ch/Tr>:]FUNCtion[:ON] "...POWer:A1"
etc.
Create new trace and select name and measurement parameter:
CALCulate<Ch>:PARameter:SDEFine "<Trace_Name>", "A1" | ...
More Wave Quantities
Opens a dialog to define and select arbitrary wave quantities for different detectors and source ports or
more than 2 ports.
The notation for wave quantities and the functionality of the More Wave Quantities dialog is analogous
to the definition of S-parameters.
•
Wave Quantity selects the type (left pull-down list) and the port number assignment (right pull-
down list) of the wave quantity. The output (transmit) or input (receive) port number of the
analyzer (corresponding to the input (stimulus) or output (response) port number of the DUT,
respectively) is selected in the right pull-down list. The range of output and input port numbers
depends on the analyzer model.
•
Show as selects the physical unit of the displayed trace. It is possible to display the measured
Voltage U or convert the wave quantity into an effective power according to P = V
2
/Re(Z
0
). Z
0
denotes the reference impedance of the source port (for wave quantities a
n
) or of the receive
port (for wave quantities b
n
). The reference impedances are defined in the Port Configuration
dialog. This function is also available for memory traces where the remaining control elements