Rohde & Schwarz RTP Series - Page 1069

Deembedding (Option R&S RTP-K121/-K122)
R&S
®
RTP
1069User Manual 1337.9952.02 ─ 12
b) Check the response curves. The display is based on a reference impedance of
Z0 = 50 Ω.
The response curves show:
● The correctness of the S-parameter file.
● The correct setting of the input and output ports ("Input 1", "Output 1")
● The characteristics of the component.
5. If the component is configured correctly, tap "Enable" to include it in the deembed-
ding setup.
To configure a component in a single-ended 4-port setup
1. If the component is a 4-port, i.e. a fixture or custom block, load the *.s4p Touch-
stone file that contains the S-parameters of the component:
a) Tap "Open".
b) Select and load the *.s4p Touchstone file. The filetype is always *.s4p.
2. If the component is a 2-port, i.e. a cable or adapter, typically 2 cables or adapters
are used. These components can be different or identical.
a) If the components are identical, enable "Identical Paths" on page 1070. You
need 1 *.s2p Touchstone file.
If the components are different, disable "Identical Paths" on page 1070. You
need 2 *.s2p Touchstone files, one for each component.
b) Select the filetype *.s2p.
c) Tap "Open".
d) Select and load the *.s2p Touchstone file.
e) If the components are different, load the second *.s2p Touchstone file in the
same way.
3. Assign the ports to the input and output of the component according to the data in
the Touchstone file. See also: "Input 1, Input 2, Output 1, Output 2" on page 1070.
4. Analyze the response curves of each S-parameter. You can analyze magnitude,
phase and group delay response, which are functions of frequency.
a) Select the S-parameter.
b) Check the response curves. The display is based on a reference impedance of
Z0 = 50 Ω.
The response curves show:
● The correctness of the S-parameter file.
● The correct setting of the input and output ports ("Input 1", "Output 1")
● The characteristics of the component.
5. If the component is configured correctly, tap "Enable" to include it in the deembed-
ding setup.
Response curves are described in Chapter 19.3.1, "Responses of the component cas-
cade", on page 1071.
Deembedding settings