Agilent Technologies ENA Series User Manual page 347

Rf network analyzers

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Table of Contents

Measurement range

In the time domain function, the measurement range means the range within which the

response can be measured without repetition. The repetition of the response occurs because

measurement in the frequency domain is performed discretely instead of continuously. The

measurement range is inversely proportional to the frequency difference between adjacent

measurement points. The frequency difference between measurement points

expressed as follows by using the span of the sweep frequency

Therefore, the measurement range is proportional to the number of points− 1 and inversely

proportional to the span of the sweep range. To enlarge the measurement range, use one of

the following methods:

Increase the number of points.

Narrow the span of the sweep range.

When you change the above settings after performing calibration, you need to perform

calibration again.

The sweep range is expressed as time or distance. The time of the measurement range

The distance of the measurement range

The maximum length of the DUT that can be measured in the transmission measurement is

returns, it is 1/2 of

The velocity factor varies depending on the material through which the signal propagates:

0.66 for polyethylene and 0.7 for Teflon.

Changes in the settings and the changes in the response

Table 9-4 shows the effect of changes in the measurement conditions on the response

is as follows:

and the speed of light in a vacuum

. On the other hand, in the reflection measurement, because the signal goes and

Analysis in Time Domain (Option 010)

Transformation to time domain

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is expressed as follows using the velocity

and the number of

Troubleshooting

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