R&S ZNL Series - Page 220

VNA concepts and features
R&S
®
ZNL/ZNLE
220User Manual 1178.5966.02 ─ 20
Table 9-4: Calculation of Converted Reflection Impedances
Traveling Waves Power Waves
Series transmission impedance
A two-port transmission parameter Z
ij
(i ≠ j) can describe a pure serial impedance
between the two ports.
U
0
I
1
I
2
U
1
U
2
U
0
Z
0j
Z
ij
Z
0i
The calculation formula of a converted serial transmission impedance Z
ij
depends on
the waveguide circuit theory according to which Reference impedances are calculated.
Table 9-5: Calculation of Converted Series Transmission Impedances
Traveling Waves Power Waves
Parallel transmission impedance
A two-port transmission parameter Z
ij
(i ≠ j) can also describe a parallel impedance
between the two ports.
U
0
I
1
I
2
U
1
U
2
U
0
Z
0j
Z
ij
Z
0i
The calculation formula of a converted parallel transmission impedance Z
ij
depends on
the waveguide circuit theory according to which Reference impedances are calculated.
Measurement results