Patent ID: 8558552
Filing Date: 2013-10-15
Classification: G01R,H04B

Abstract:
1. A method of characterizing a wiring network having a nominal impedance, comprising: connecting first and second probes to the wiring network at first and second different locations; at the first probe, generating a first frequency sweep and measuring a first sweep response generated by the wiring network reflecting the first frequency sweep, wherein an impedance of the second probe is equal to the nominal impedance; changing the impedance of the second probe between the nominal impedance and a mismatch impedance different from the nominal impedance; at the first probe, generating a second frequency sweep and measuring a second sweep response generated by the wiring network reflecting the second frequency sweep, wherein the impedance of the second probe is equal to the mismatch impedance; at the second probe, generating a third frequency sweep and measuring a third sweep response generated by the wiring network reflecting the third frequency sweep, and wherein the impedance of the first probe is equal to the nominal impedance; changing the impedance of the first probe between the nominal impedance and a mismatch impedance different from the nominal impedance; at the second probe, generating a fourth frequency sweep and measuring a fourth sweep response generated by the wiring network reflecting the fourth frequency sweep, and wherein the impedance of the first probe is equal to the mismatch impedance; and, processing the first, second, third, and fourth sweep responses so as to provide characterization of a transmission line between the first and second probes.