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In this paper, a new comprehensive analytical derivation and discussion of the multimode thru-relfect-line (TRL) calibration based on the new generalized reverse cascade matrices is presented. The advantage of the presented formulation is that it can account for certain symmetries in the measurement setup and reflect them in the symmetry of the derived relationships. The focus is on the two-mode case...
Accurate characterization of a three-port balanced-unbalanced (balun) device requires a four-port vector network analyzer (VNA), which might be not easily available. Thus, it is a common practice to terminate one of the three ports and to use a standard two-port VNA. However, applicability of the above approach is limited since the ports at the differential side of the balun are tightly coupled. This...
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