A tutorial for using vector network analyzer that novices should not miss

Because the vector network analyzer has the characteristics of wide frequency range, large dynamic range, high resolution accuracy, fast real-time, simple use, flexibility and convenience, etc., whether it is engaged in R&D or test engineers, the vector network analyzer is used very frequently. Provided great help to engineers. Antai Test summarizes the general use of vector network analyzers, including its preliminary preparation and precautions for use, and analyzes the functions and operations of each button on the panel. We hope it will be helpful to you.

1. Usage process

Make sure the power cord and bottom line are correctly connected and then turn on -> set the appropriate power -> set the starting state -> set the display -> recall the stored state -> perform two-channel calibration -> store the state -> connect the device as required - >Measure->Long term inactivity->Shut down

2. Functions and operations of each button on the panel

Press the power button on the lower left to start. After starting, the instrument will enter the startup interface after completing the self-test. The initial state settings include power level settings, instrument measurement frequency band settings, and the addition of measurement data traces. You can choose to display multiple displays on the same screen. track or display different tracks in multiple windows. The power dynamometer must be calibrated before measurement, or the previously calibrated data must be retrieved. Once the test conditions change (such as changes in temperature, environment, and test cables), it must be recalibrated. During use, we can The measured data and images can be recalled and saved, and marker points can also be added to the trajectory as a reference for comparison. In order to improve the dynamic range of the test without affecting the speed, segmented scanning and other operations are required when necessary.

All of the aspects mentioned above can be achieved by getting familiar with its operation panel and the functions of its operation panel and then setting the different buttons.

3. Preliminary preparation stage and matters needing attention

Before starting up, make sure that the regulated power supply and instrument ground wire are correctly connected. During use, you must wear an anti-static bracelet. Do not touch the inner core of the instrument connector. Large vibrations on the workbench are not allowed. Do not cut off the power supply at will, which may cause abnormal shutdown. It is not necessary to switch the machine on and off frequently.

Do not use too much force when using the RF cable and ensure that the cable maintains a large arc. After use, add a connector cover to the cable connector. When screwing the connector, screw the connector's threaded sleeve to try to ensure that the inner core does not rotate. Try to coordinate and use less calibration parts. If a calibration piece is used, it must be capped and returned to the device box. , the adapter should be covered and returned to the box after use. It must be shut down when it is not in use. Cleaning can only be done after turning off the regulated power supply. Another point that must be noted is that clean gloves must be worn when debugging passive components.