By the same authors

Effect of power state on the absorption cross section of personal computer electronics

Research output: Contribution to conferenceOtherpeer-review



Publication details

DatePublished - 1 Jun 2016
Number of pages1
Original languageUndefined/Unknown


Knowledge of the shielding effectiveness (SE) of an enclosure is important for the electromagnetic compatibility of electronic systems. The SE of an enclosure depends on the absorption cross section (ACS) of its contents, the circuit cards, disk drives etc. In most published work, the ACS measurements were performed when the contents were unpowered. We expected that the ACS would be different when a circuit is powered as many of the active devices would be biased into conduction. Also we have observed in previous work that the switching activity causes a circuit to act as a modulated scatterer. In this work we compare the measured ACS of the contents of a PC in powered and unpowered state.


  • Improved shielding enclosure qualification methodologies embedded in international standards and used by industry to improve reliability of the communication backbone

    Impact: Technological, Economic

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