4.6: Summary
- Page ID
- 41111
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The vendors of microwave test equipment program their instruments so that they guide the user through the calibration procedure. Usually the calibration procedures take much longer than the actual DUT measurement. The higher the frequency the longer and more fastidious is calibration, with calibration at \(200\text{ GHz}\) perhaps taking days. Still calibration is absolutely required and with it surprisingly accurate measurements can be made at microwave and millimeter-wave frequencies.