Transformation To Time Domain; Flow Of Measurement - Agilent Technologies ENA Series User Manual

Analysis in Time Domain (Option 010)

Transformation to time domain

Transformation to time domain
The transformation function lets you transform the response in frequency domain to the
response in time domain.

Flow of measurement

Table 8-1 shows the flow of measurement.
Table 8-1 Flow of transformation to time domain
Item
"Selecting a type" on
page 179
"Setting the window" on
page 181
"Calculating necessary
measurement conditions" on
page 182
"Setting the frequency range
and the number of points" on
page 186
"Setting display range" on
page 186
"Enabling transformation
function" on page 187
178
Description
Select the transformation type from the following.
• Band pass mode
You can set the sweep range arbitrarily. This is suitable for devices through
which signals within a certain frequency range pass such as filters.
• Low pass mode
Simulates the TDR measurement. This mode is suitable for devices through
which dc current or signals of many frequencies pass such as cables.
The low pass mode provides 2 types of modes: low pass step and low pass
impulse.
To reduce a phenomenon (ringing) in which a waveform waves caused because
the frequency domain is finite, set the window.
To obtain the necessary resolution and measurement range in time domain,
calculate the following values.
• Sweep range
• Number of points
• Window width
Set the sweep range and the number of points to the values calculated above.
Set the range displayed on the graph.
Enables the transformation function.
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