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Title: A Direct Comparison System For Measuring Radio Frequency Power (100 Khz To 18 Ghz)
Author: Ronald Ginley
Source: 2006 Measurement Science Conference
Year Published: 2006
Abstract: A direct comparison power measurement system has been developed to measure power sensor effective efficiency (?e) in the 100 kHz to 18 GHz frequency range. This system is capable of measuring thermistor and thermoelectric based power sensors. Several problems needed to be addressed in the development of the system. These included rf leakage from the power sensors and its effect on system electronics, the sensitivity of power meter and digital volt meter to extraneous signals, and the effect of compensation beads, if there were any, in the sensors. The system design, discussion of the most important problems, the uncertainty analysis for the system, and comparison to measurements made by the NIST 0.05 GHz to 50 GHz system and the voltage/impedance technique will be covered.

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