Electromagnetic coupling into two standard calibration shields on the Sandia cable tester

Warne, Larry K.; Basilio, Lorena I.; Langston, William L.; Chen, Kenneth C.; Hudson, H.G.; Morris, Marvin E.; Stronach, S.L.; Johnson, William A.; Derr, W. A.

doi:10.2172/1204091

Cited by 2 publications

(2 citation statements)

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“…To reduce leakage into the inner conductor from the shield termination, the outer shield is soldered to the connector. Shielding attenuation provided by the outer shield of the braided cable is measured using an ACT-1 Cable Test System (CTS) [16]. This cable tester was constructed long ago to enable testing of shielding effectiveness (cable current ratio in this case) for arbitrary cables, including flat cables and branched systems, and mimics typical cable routing above a ground plane chassis.…”

Section: Experimental Validation Of the Proposed Circuit Modelmentioning

confidence: 99%

Validation of Shielded Cable Modeling in Xyce Based on Transmission-Line Theory

Campione¹,

Pung²,

Warne³

et al. 2019

PIER Letters

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Cables and electronic devices typically employ electromagnetic shields to prevent coupling from external radiation. The imperfect nature of these shields allows external electric and magnetic fields to induce unwanted currents and voltages on the inner conductor by penetrating into the interior regions of the cable. In this paper, we verify a circuit model tool using a previously proposed analytic model [1], by evaluating induced currents and voltages on the inner conductor of the shielded cable.Comparisons with experiments are also provided, aimed to validate the proposed circuit model. We foresee that this circuit model will enable coupling between electromagnetic and circuit simulations.

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Section: Experimental Validation Of the Proposed Circuit Modelmentioning

confidence: 99%

Validation of Shielded Cable Modeling in Xyce Based on Transmission-Line Theory

Campione¹,

Pung²,

Warne³

et al. 2019

PIER Letters

View full text Add to dashboard Cite

show abstract

“…Near the resonance of the tester it was found that the loads exhibit increasing losses as well as reactive effects. Thus, to get a better understanding of these load values, several experiments were performed [16]. The load Z L = R L + jωL L has been approximated in simulation as a linear interpolation function with the parameters in Table 1.…”

Section: Single Shield Cable Analysis and Experimental Verificationmentioning

confidence: 99%

Shielding Effectiveness of Multiple-Shield Cables With Arbitrary Terminations via Transmission Line Analysis

Campione¹,

Basilio²,

Warne³

et al. 2016

PIER C

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Abstract-In this paper we report on a transmission-line model for calculating the shielding effectiveness of multiple-shield cables with arbitrary terminations. Since the shields are not perfect conductors and apertures in the shields permit external magnetic and electric fields to penetrate into the interior regions of the cable, we use this model to estimate the effects of the outer shield current and voltage (associated with the external excitation and boundary conditions associated with the external conductor) on the inner conductor current and voltage. It is commonly believed that increasing the number of shields of a cable will improve the shielding performance. However, this is not always the case, and a cable with multiple shields may perform similar to or in some cases worse than a cable with a single shield. We want to shed more light on these situations, which represent the main focus of this paper.

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Electromagnetic coupling into two standard calibration shields on the Sandia cable tester

Cited by 2 publications

References 0 publications

Validation of Shielded Cable Modeling in Xyce Based on Transmission-Line Theory

Validation of Shielded Cable Modeling in Xyce Based on Transmission-Line Theory

Shielding Effectiveness of Multiple-Shield Cables With Arbitrary Terminations via Transmission Line Analysis

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