R&S ZVB - Page 682

R&S
®
ZVA / R&S
®
ZVB / R&S
®
ZVT Command Reference
SCPI Command Reference
Operating Manual 1145.1084.12 – 30 667
S11 | S12 | S13 | S14 | S21 | S22 | S23 | S24 | S31
| S32 | S33 | S34 | S41 | S42 | S43 | S44
S-parameters
A | B | C | D
Wave quantities b1, b2, b3, b4 (received
waves)
R1 | R2 | R3 | R4
Wave quantities a1, a2, a3, a4 (reference
waves)
AB | AC | AD | BA | BC | BD | CA | CB | CD | DA | dB
| DC
Ratio of wave quantities b1/b2, b1/b3, ... ,
b4/b3 (received waves only)
AR1 | AR2 | AR3 | AR4 | BR1 | BR2 | BR3 | BR4 | CR1
| CR2 | CR3 | CR4 | DR1 | DR2 | DR3 | DR4 | R1A |
R1B | R1C | R1D | R2A | R2B | R2C | R2D | R3A | R3B
| R3C | R3D | R4A | R4B | R4C | R4D
Ratio of wave quantities b1/a1, b1/a2, ... ,
b4/a4, a1/b1, a1/b2, ..., A4/B4 (received
waves to reference waves or reference waves
to received waves)
R1R2 | R1R3 | R1R4 | R2R1 | R2R3 | R2R4 | R3R1 |
R3R2 | R3R4 | R4R1 | R4R2 | R4R3
Ratio of wave quantities a1/a2, a1/a3, ... ,
a4/a3 (reference waves only)
CALCulate<Ch>:PARameter:DEFine:SGRoup <log_port1>[, <log_port2>,...]
Creates the traces for all S-parameters associated with a group of logical ports (S-parameter group). The
traces can be queried using CALCulate<Ch>:DATA:SGRoup?
Traces must be selected to become active traces; see CALCulate:PARameter:SELect.
Each channel can contain a single S-parameter group only. Defining a new S-parameter group
deletes the previous one. Use CALCulate<Ch>:PARameter:DELete:SGRoup to delete the current S-
group explicitly.
<Ch>
Channel number. <Ch> may be used to reference a previously defined channel. If
<Ch> does not exist, it is generated with default channel settings.
<log_port1>...
Logical (balanced or unbalanced) port numbers. The port numbers must be in
ascending order, their number is limited by the test ports of the analyzer.
With n logical port numbers, the command generates n
2
traces. The traces
correspond to the following S-parameters:
S
<log_port1><log_port1>
, S
<log_port1><log_port2>
... S
<log_port1><log_port<n>>
...
S
<log_port<n>><log_port1>
, S
<log_port<n>><log_port2>
... S
<log_port<n>><log_port<n>>
,
e.g. S
11
, S
12
, S
21
, S
22
for <log_port1> = 1, <log_port2> = 2. If only one logical port
<log_port1> is specified, a single trace with the reflection coefficient
S
<log_port1><log_port1>
is created.
Trace names
The generated traces are assigned the following trace names:
<Ch_name>_SG_S<log_port1><log_port1>,
<Ch_name>_SG_S<log_port1><log_port2> ...
<Ch_name>_SG_S<log_port1><log_port<n>>
...
<Ch_name>_SG_S<log_port<n>><log_port1>,