Patent ID: 9244145
Filing Date: 2016-01-26
CPC Classification: G01R

Claim Text:
1. A system for measuring near field information of a device under test (DUT), the system comprising: a reference probe and a measurement probe that are configured to sense a field about the DUT; an analysis device coupled to the reference and measurement probes to capture signals from the reference and measurement probes; a computer system operably coupled to the analysis device to determine corresponding field values for the signals from the measurement probe using a probe calibration factor; and a signal generator configured to transmit a reference signal onto a conductive trace to produce a field, the conductive trace being connected to the analysis device to measure voltage at the conductive trace when the reference signal is transmitted onto the conductive trace, wherein the measurement probe is used to measure signals about the conductive trace to derive the probe calibration from the measured signals and simulated field information for the conductive trace when subjected to a simulated reference signal, and wherein the simulated field information includes a ratio of field above the conductive trace to voltage on the conductive trace when the conductive trace is subjected to the simulated reference signal.