8-3 VNA Master Implementation Time Domain, Option 2
8-12 PN: 10580-00289 Rev. K Vector Network Analyzer MG
Similarly, the effect of the dispersion compensation can be seen in the transmission response
(S
21
) of a 15 cm long waveguide, as shown in Figure 8-10. Note how the distance response is
sharp and centered at 15 cm, whereas the time response is spread out and inaccurate.
Figure 8-10. S
21
Measurement of 15 cm Long Waveguide Showing Dispersion Compensation
Note
As shown in the above examples, the VNA Master does not alter the time domain
measurement. (This provides a pure unmodified measurement for sophisticated
users.) This is consistent with display selections on equivalent bench-top
instruments. In the distance domain, the VNA Master performs both round-trip and
dispersion compensations to provide you with more practical and easy-to-interpret
results.
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