LINE-REFLECT-REFLECT MATCH CALIBRATION
A method of compensating a calibration for a vector network analyzer includes performing calibrations on at least a pair of ports to determine error terms associated with each port wherein at least one of the error terms is based upon selecting the reactance of the load standard from a set of potential values in a manner such that the reference reactance errors are reduced.
1 . A method of compensating a calibration for a vector network analyzer comprising:
(a) performing calibrations on at least a pair of ports to determine error terms associated with each port;
(b) wherein at least one of said error terms is based upon selecting the reactance of the load standard from a set of potential values in a manner such that the reference reactance errors are reduced.
2 . The method of claim 1 wherein said method accounts for differences between the load measured at a probe-tip reference plane and measured at a center-of-thru reference plane.
3 . The method of claim 1 wherein said set of potential value is based upon said reactance of said load.
4 . The method of claim 1 wherein for each of said potential values computing a load impedance at the probe tip.
5 . The method of claim 4 wherein for each said computed load impedance at said probe tip translating to the thru-center reference place.
6 . The method of claim 5 wherein at least one error term is renormalized based upon said translated computed load impedance.