Rohde & Schwarz R&S ZNA Series - 4.7.45.1 Simulation data

Concepts and features
R&S
®
ZNA
336User Manual 1178.6462.02 ─ 29
Figure 4-51: Instrument selection
For information on installation and licensing, see the R&S ZNXSIM Getting Started
manual available at https://www.rohde-schwarz.com/manual/ZNXSIM.
4.7.45.1 Simulation data
The firmware simulation displays traces. To this end, it loads simulation data from file,
by default from
C:\Program Files\Rohde-Schwarz\Vector Network Analyzer\ZNA\
Resources\Simulation\Measurements\
InputBufferGroupSimulation.s4p.
This Touchstone file contains the 16 S-parameter traces of a 4-port network (4x4 S-
matrix), measured at 1193 points in the frequency range from 0 GHz to 70 GHz. The S-
Matrix "simulates" a linear network (DUT) connected to VNA ports 1 to 4.
For 2-port VNAs, the left upper 2x2 submatrix is used.
For instruments with N ≥ 4 ports (on the VNA and connected switch matrices), the firm-
ware replicates the loaded S-matrix ⌈N/4⌉
2
times, and uses the left upper NxN matrix:
S
N rows
N columns
S S
S S S
S S S
Figure 4-52: S-matrix replication
Optional extensions and accessories