GUI reference
R&S
®
ZNA
363User Manual 1178.6462.02 ─ 29
The "More Ratios..." button opens the More Ratios dialog which allows to select an
arbitrary ratio of wave quantities.
"Wave Correction" applies to wave quantitiy, ratio and harmonics measurements. The
corresponding checkbox is also shown on the "Wave" tab (see "Wave Correction"
on page 359).
b<i> / a<j> Source Port <j>
Selects predefined complex ratios of the standard 2-port wave quantities a
1
, a
2
, b
1
, and
b
2
.
The predefined wave quantities can all be obtained with the same test setup, where a
2-port DUT is connected between the analyzer ports 1 and 2. The stimulus signal is
provided by the analyzer port 1 or 2 ("Source Port").
The predefined wave quantities correspond to the 2-port S-parameters:
●
"b1/a1 Source Port 1" is the ratio of the wave quantities b
1
and a
1
, measured at
port 1. This ratio corresponds to the S-parameter S
11
(input reflection coefficient).
●
"b2/a1 Source Port 1" is the ratio of the wave quantities b
2
and a
1
and corresponds
to the S-parameter S
21
(forward transmission coefficient).
●
"b2/a2 Source Port 2" is the ratio of the wave quantities b
2
and a
2
, measured at
port 2. This ratio corresponds to the S-parameter S
22
(output reflection coefficient).
●
"b1/a2 Source Port 2" is the ratio of the wave quantities b
1
and a
2
and corresponds
to the S-parameter S
12
(reverse transmission coefficient).
The analyzer can also measure arbitrary ratios for other source ports; see Chap-
ter 5.2.4.2, "More Ratios dialog", on page 363.
Tip: In the trace list, the source port is indicated in brackets. "b2/a1(P1)" denotes the
ratio b
2
/a
1
with source port 1.
Remote command:
CALCulate<Ch>:PARameter:MEASure "<Trace_Name>", "B2/A1" | ...
CALCulate<Ch>:PARameter:SDEFine "<Trace_Name>", "B2/A1" | ...
5.2.4.2 More Ratios dialog
The More Ratios dialog allows you to select arbitrary ratios between wave quantities b
i
,
a
j
as measured quantity. The ratios can be calculated with arbitrary source port and dif-
ferent detector settings.
Access: Trace – [Meas] > "Ratio" > "More Ratios..."
Meas softtool
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