Capacitively coupled RF voltage probe having optimized flux linkage

Patent · 01 February 1999

OSTI ID:872133

Moore, James A ^[1]; Sparks, Dennis O ^[2]

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1. Powell, TN
2. Maryville, TN

An RF sensor having a novel current sensing probe and a voltage sensing probe to measure voltage and current. The current sensor is disposed in a transmission line to link all of the flux generated by the flowing current in order to obtain an accurate measurement. The voltage sensor is a flat plate which operates as a capacitive plate to sense voltage on a center conductor of the transmission line, in which the measured voltage is obtained across a resistance leg of a R-C differentiator circuit formed by the characteristic impedance of a connecting transmission line and a capacitance of the plate, which is positioned proximal to the center conductor.

• Research Organization: Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA
• Assignee: Sematech, Inc. (Austin, TX)
• Patent Number(s): US 5867020
• Application Number: 08/742,392
• OSTI ID: 872133
• Country of Publication: United States
• Language: English

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