Method for calibration of a vectorial network analyzer having more than two ports
a network analyzer and network analyzer technology, applied in the direction of instruments, resistance/reactance/impedence, measurement devices, etc., to achieve the effect of improving measurement accuracy
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[0046]FIG. 3 illustrates how the signal from one of two sources 17 is conducted via a first changeover switch 12 onto the branches 18 and 19; and the signal from a second source 17 is conducted via a second changeover switch 12 onto the branches 20 and 21. Both changeover switches 12 are arranged in front of the measurement sites 11 for the waves reflected into the respective branches 18, 19, 20, and 21 (referred to here as m2 and m3 as well as m5 and m6). Two additional measurement sites 11 (referred to as m1 and m4), which make a measure of the incident waves, are arranged between a respective source 17 and a switch.
[0047]Thus, the measurement sites 11, assumed to be ideal, are viewed in the propagation direction of the wave to be measured, are always arranged in front of a switch 12, and in each case make a measurement of the incident and transmitted wave. The properties of the switches 12—such as repeatability, reflection and long-term stability—are taken into account in the follow
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