Changes in a Printed Circuit Board's Absorption Cross Section Due to Proximity to Walls in a Reverberant Environment

Sarah Parker, Ian Flintoft, Andrew Marvin, John Dawson, Simon Bale, Martin Robinson, Ming Ye, Changyong Wan, Mengze Zhang

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Knowledge of the Absorption Cross Section (ACS) of a Printed Circuit Board (PCB) is essential when defining an enclosure’s shielding effectiveness as it will determine how a PCB affects the internal electromagnetic (EM) field inside the enclosure. In this paper we show how the ACS changes when a PCB is in the vicinity of the enclosure walls by making measurements in a small reverberation chamber. We find that when the PCB is perpendicular to the chamber wall different measurement positions have little effect on the ACS, even when the PCB is positioned close to the wall. However, placing the PCB parallel to the chamber wall did show some differences in ACS. This information could be useful when considering situations where PCBS are stacked together or close to enclosure walls when in a reverberant environment.
Original languageEnglish
Title of host publication2016 IEEE International Symposium on Electromagnetic Compatibility (EMC)
Number of pages6
Publication statusPublished - 25 Jul 2016
Event2016 IEEE International symposium on electromagnetic compatibility (EMC 2016) - Ottowa, Canada
Duration: 25 Jul 201629 Jul 2016


Conference2016 IEEE International symposium on electromagnetic compatibility (EMC 2016)

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  • electromagnetic shielding
  • reverberant environment
  • absorption cross section
  • reverberation chamber
  • printed circuit board
  • Electromagnetic Compatibility

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