Agilent Technologies E5071C Guide de l'utilisateur Page 170

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170 Chapter 12
Sample Application Programs
Basic measurement (measuring a band pass filter)
Basic measurement (measuring a band pass filter)
Example 12-1 provides a sample program that measures a band pass filter.You can find the
source file of this program, named meas_bpf.htb, on the sample program disk.
The sample program performs full 2-port calibration using the 85032F calibration kit,
measure a band-pass filter (center frequency: 947.5 MHz), and calculates and displays its
bandwidth, insertion loss, and so on. This measurement is the same as “Measuring a
band pass filter” in Installation and Quick Start Guide of the
E5061A/E5062A.
Therefore, for information on the flow of the measurement, the connection of the standard,
and so on, refer to the description of Installation and Quick Start Guide.
When started, the program displays the message “Set OPEN to Port 1. Then push [Enter]
key.” Connect the OPEN standard to the port 1 and press
[Enter] to measure the OPEN
calibration data. Likewise, connect the SHORT and the LOAD standards and measure each
calibration data.
Next, the program displays the message “Set OPEN to Port 2. Then push [Enter] key.”
Connect the OPEN standard to the port 2 and press
[Enter] to measure the OPEN
calibration data. Likewise, connect the SHORT and the LOAD standards and measure each
calibration data.
Further, the program displays the message “Set THRU between Port 1 and Port 2. Then
push [Enter] key.” Connect the THRU standard between the ports 1 and 2 and press
[Enter]
to measure the THRU calibration data.
When the calibration is finished, the program displays the message “Set DUT. Then Push
[Enter] key.” Connect the DUT and press
[Enter]. This initiates the measurement and
display the result as shown in Figure 12-1.
Figure 12-2 shows a sample display of the LCD screen after the program exits execution.
Figure 12-1 Sample execution result of the program of Example 12-1
## Measurement Result ##
BW: 3.63757249908E+7
cent: 9.4836227902E+8
low: 9.30174417035E+8
high: 9.66550142015E+8
Q: 26.0712980976
loss: -2.2447956671
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Vikiehs 04 Jan 2024 | 13:20:06

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