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VNA Measurements
4-4 2-Port Filter Measurement
4-4
2-Port Filter Measurement
Introduction
Filters are 2-port devices that lend themselves well to a full 2-port measurement. They are
usually compact devices with both sides of the component being easily accessible.
Setup Considerations
To perform the measurement, set the frequency to the range of interest, and set the power
level to high. Perform a 2-port calibration by using the appropriate connector type. Also refer
to section
"Calibration Considerations" on page
4-16.
Measurement Readout and Interpretation
The screen-captured measurement that is shown in
Figure 4-5
is an overlay of S
and S
of
11
21
a highpass filter. This measurement is comparing the transmission response calibration and
the full 2-port calibration. The full 2-port calibration offers a dramatic improvement in return
loss accuracy. The transmission response calibration is sufficient for a rough measurement of
insertion loss.
Figure 4-5.
High Pass Filter with 2-Port Calibration
Vector Network Analyzer MG
PN: 10580-00289 Rev. K
4-7
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