An Inductive Probe for the Measurement of Common Mode Currents on Differential Traces

Victor Khilkevich; David Pommerenke; Li Gang; Xu Shuai

doi:10.1109/ISEMC.2012.6351645

An Inductive Probe for the Measurement of Common Mode Currents on Differential Traces

Victor Khilkevich
, David Pommerenke
, Li Gang
, Xu Shuai

Electrical and Computer Engineering

Missouri University of Science and Technology

Research output: Contribution to journal › Article › peer-review

Abstract

Measuring common mode currents on differential microstrip transmission lines is a complicated task, because the common mode current, being the parasitic mode, is usually much weaker than the intended differential current. Hence, the measurement technique has to provide sufficient rejection of the differential mode. The probe described in this paper uses a shielded loop probe combined with a metallic screen to enhance the differential mode rejection of the current probe. The proposed techniques were tested on a test board at frequencies up to 6 GHz.

Original language	American English
Journal	Proceedings of the 2012 IEEE International Symposium on Electromagnetic Compatibility (2012, Pittsburgh, PA)
DOIs	https://doi.org/10.1109/ISEMC.2012.6351645
State	Published - Aug 1 2012

Keywords

Current measurement
Magnetic field measurement
Metals
Microstrip
Power transmission lines
Probes
Transmission line measurements

Disciplines

Electrical and Computer Engineering

Access to Document

10.1109/ISEMC.2012.6351645License: Unspecified

https://doi.org/10.1109/ISEMC.2012.6351645

Cite this

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AU - Shuai, Xu

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N2 - Measuring common mode currents on differential microstrip transmission lines is a complicated task, because the common mode current, being the parasitic mode, is usually much weaker than the intended differential current. Hence, the measurement technique has to provide sufficient rejection of the differential mode. The probe described in this paper uses a shielded loop probe combined with a metallic screen to enhance the differential mode rejection of the current probe. The proposed techniques were tested on a test board at frequencies up to 6 GHz.

AB - Measuring common mode currents on differential microstrip transmission lines is a complicated task, because the common mode current, being the parasitic mode, is usually much weaker than the intended differential current. Hence, the measurement technique has to provide sufficient rejection of the differential mode. The probe described in this paper uses a shielded loop probe combined with a metallic screen to enhance the differential mode rejection of the current probe. The proposed techniques were tested on a test board at frequencies up to 6 GHz.

KW - Current measurement

KW - Magnetic field measurement

KW - Metals

KW - Microstrip

KW - Power transmission lines

KW - Probes

KW - Transmission line measurements

UR - https://scholarsmine.mst.edu/ele_comeng_facwork/2414

UR - https://doi.org/10.1109/ISEMC.2012.6351645

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JO - Proceedings of the 2012 IEEE International Symposium on Electromagnetic Compatibility (2012, Pittsburgh, PA)

JF - Proceedings of the 2012 IEEE International Symposium on Electromagnetic Compatibility (2012, Pittsburgh, PA)

ER -

An Inductive Probe for the Measurement of Common Mode Currents on Differential Traces

Abstract

Keywords

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