Concepts and features
R&S
®
ZNA
270User Manual 1178.6462.02 ─ 20
4.7.15 In-situ de-embedding
Option R&S ZNA-K220
This option offers a pre-installed or service-retrofitted version of AtaiTec's In Situ De-
Embedding (ISD) tool for fixture de-embedding.
The tool is integrated into the de-embedding functionality of the analyzer firmware.
●
For general information about fixture de-embedding, see Chapter 4.6.2.9, "Fixture
modeling and deembedding", on page 215.
●
For detailed information about the ISD tool, see the product pages at http://atai-
tec.com/products/isd/
Tips for using ISD
The ISD User's Guide offers the following guidelines to get the most out of ISD:
1. The Touchstone files must have enough number of points.
The minimum required is at least two points for every 90 degree phase angle
change in insertion loss (or 8 points per wavelength).
2. The "2x Thru’s" return loss must be smaller than its insertion loss.
3. The "2x Thru’s" insertion loss must be relatively linear, with a few wavelengths at
the highest frequency.
4. Use a 4-port "2x Thru" if strong far-end crosstalk (FEXT) is present.
5. Use a complete DUT w. fixture file for extraction.
Source: "In Situ De-Embedding (ISD) User's Guide" – November 11, 2018
4.7.16 Smart fixture de-embedding
Option R&S ZNA-K230
This option offers a pre-installed or service-retrofitted version of PacketMicro's Smart
Fixture De-embedding (SFD) for fixture de-embedding.
The tool is integrated into the de-embedding functionality of the analyzer firmware.
●
For general information about fixture de-embedding, see Chapter 4.6.2.9, "Fixture
modeling and deembedding", on page 215.
●
For detailed information about the SFD tool, see the product pages at https://
www.packetmicro.com/Products/sfd-tool.html.
Optional extensions and accessories
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