Agilent Technologies ENA Series Guía de usuario Pagina 124

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118 Chapter 4
Calibration
Full 2-Port Calibration
Full 2-Port Calibration
In full 2-port calibration, calibration data are measured by connecting an OPEN standard, a
SHORT standard, or a LOAD standard to two desired test ports (or a THRU standard
between two ports).This calibration effectively eliminates the directivity error, crosstalk,
source match error, frequency response reflection tracking error, and frequency response
transmission tracking error from the test setup in a transmission or reflection test using
those ports (Figure 4-15). This calibration makes it possible to perform measurements with
the highest possible accuracy. A total of twelve error terms, six each in the forward
direction and the reverse direction, are used in a calibration.
Figure 4-15 Full 2-port error model (forward)
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