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How to improve the RF and microwave test validity
Mar 01, 2017

In the RF and microwave test equipment, Agilent Technologies on "performance" definition mainly refers to the instrument's accuracy, wide measurement range and frequency. Instrument accuracy including amplitude and frequency of measurement of expressed absolute accuracy measuring range is dynamic range, distortion, noise level and phase noise, these properties will affect the signal level measurement accuracy and bandwidth refers to and the width of the frequency analysis or data rate. Speed test of speed or Throughput depending on the hardware used, the input/output (I/O) interface and software, our focus will be on hardware and on the four factors that will affect the speed: set time measurement, measuring execution time, processing time, and the data transfer time. In RF and microwave frequencies, set time is a very important part in DUT or each time you change the test system (such as open or closed switch, power level change), the required stabilization time (settling time).

Steady consistency of any test system, every time the tests as well as daily testing can produce consistent results is very important. However, stability does not represent the accuracy is high, because the accuracy will depend on the effectiveness of individual instruments, referring to express accuracy and stability, and the measurement results are consistent. Each instrument is concerned, stability may vary due to certain measurements or patterns, so specifications or check with the manufacturer of the product is very important. To a certain extent, through more average, or modify the algorithm to accurately approximate the results of standard measurement methods, will be able to improve stability. Measuring set (center frequency, frequency and attenuation levels) to minimize the number of changes, you can achieve the best consistency of stability.


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