Measurement of Transmission through Printed Circuit Boards: Application to Enclosure Shielding

S. L. Parker; A. C. Marvin; J. F. Dawson; M. Ye

doi:10.1109/EMCEurope.2017.8094643

Measurement of Transmission through Printed Circuit Boards: Application to Enclosure Shielding

S. L. Parker, A. C. Marvin, J. F. Dawson, M. Ye

Electronic Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

It is important when considering the shielding effectiveness (SE) of an enclosure to take into account any contents the enclosure may have. Contents such as printed circuit boards (PCBs) will absorb electromagnetic energy and so affect the SE of the enclosure. Previously, it has been shown that the absorption cross section (ACS) of PCBs and the transmission cross section of apertures can be used in the power balance method to predict the SE of simple enclosures. However, in a more realistic enclosure, multiple cavities may be formed by PCBs that cover a large proportion of the enclosure cross section. In this case, the transmission through the PCBs, as well as through the apertures, needs to be considered. In this paper, we describe measuring the transmission through a PCB using a method normally used to measure the SE of planar samples. This measurement is quick and efficient to carry out, as no special preparation of the PCB is required. The results are shown from a selection of PCBs and limitations of the measurement discussed. The data collected can be used in power balance or computational modelling to allow engineers to determine a more accurate estimate of enclosure SE when designing electronic systems.

Original language	Undefined/Unknown
Title of host publication	2017 International Symposium on Electromagnetic Compatibility - EMC EUROPE
Place of Publication	Angers
DOIs	https://doi.org/10.1109/EMCEurope.2017.8094643
Publication status	Published - 4 Sept 2017
Event	EMC Europe 2017 - Angers, France Duration: 4 Sept 2017 → 8 Sept 2017 http://emceurope2017.org/

Conference

Conference	EMC Europe 2017
Country/Territory	France
City	Angers
Period	4/09/17 → 8/09/17
Internet address	http://emceurope2017.org/

Bibliographical note

© 2017 IEEE. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details

Keywords

Electromagnetic shielding
Power balance

Access to Document

10.1109/EMCEurope.2017.8094643

Author postprint
© 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Accepted author manuscript, 917 KBLicence: Other

1 Finished
1 Active

Electromagnetic shielding properties of Materials, and Enclosures
Dawson, J. F. (Principal investigator), Marvin, A. (Principal investigator), Flintoft, I. D. (Principal investigator), Dawson, L. (Principal investigator), Porter, S. J. (Principal investigator), Robinson, M. P. (Principal investigator) & Yan, J. (Student)
1/01/90 → …
Project: Other project › Miscellaneous project
Shielding Measurement of Electrically Large Enclosures with Contents
Marvin, A. (Principal investigator), Dawson, J. F. (Co-investigator), Robinson, M. P. (Co-investigator), Bale, S. J. (Researcher), Flintoft, I. D. (Researcher), Parker, S. (Researcher) & Yan, J. (Student)
1/09/14 → 31/08/16
Project: Research project (funded) › Research

Cite this

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title = "Measurement of Transmission through Printed Circuit Boards: Application to Enclosure Shielding",

abstract = "It is important when considering the shielding effectiveness (SE) of an enclosure to take into account any contents the enclosure may have. Contents such as printed circuit boards (PCBs) will absorb electromagnetic energy and so affect the SE of the enclosure. Previously, it has been shown that the absorption cross section (ACS) of PCBs and the transmission cross section of apertures can be used in the power balance method to predict the SE of simple enclosures. However, in a more realistic enclosure, multiple cavities may be formed by PCBs that cover a large proportion of the enclosure cross section. In this case, the transmission through the PCBs, as well as through the apertures, needs to be considered. In this paper, we describe measuring the transmission through a PCB using a method normally used to measure the SE of planar samples. This measurement is quick and efficient to carry out, as no special preparation of the PCB is required. The results are shown from a selection of PCBs and limitations of the measurement discussed. The data collected can be used in power balance or computational modelling to allow engineers to determine a more accurate estimate of enclosure SE when designing electronic systems.",

keywords = "Electromagnetic shielding, Power balance",

author = "Parker, {S. L.} and Marvin, {A. C.} and Dawson, {J. F.} and M. Ye",

note = " {\textcopyright} 2017 IEEE. This is an author-produced version of the published paper. Uploaded in accordance with the publisher{\textquoteright}s self-archiving policy. Further copying may not be permitted; contact the publisher for details; EMC Europe 2017 ; Conference date: 04-09-2017 Through 08-09-2017",

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doi = "10.1109/EMCEurope.2017.8094643",

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AU - Marvin, A. C.

AU - Dawson, J. F.

AU - Ye, M.

N1 - © 2017 IEEE. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details

PY - 2017/9/4

Y1 - 2017/9/4

N2 - It is important when considering the shielding effectiveness (SE) of an enclosure to take into account any contents the enclosure may have. Contents such as printed circuit boards (PCBs) will absorb electromagnetic energy and so affect the SE of the enclosure. Previously, it has been shown that the absorption cross section (ACS) of PCBs and the transmission cross section of apertures can be used in the power balance method to predict the SE of simple enclosures. However, in a more realistic enclosure, multiple cavities may be formed by PCBs that cover a large proportion of the enclosure cross section. In this case, the transmission through the PCBs, as well as through the apertures, needs to be considered. In this paper, we describe measuring the transmission through a PCB using a method normally used to measure the SE of planar samples. This measurement is quick and efficient to carry out, as no special preparation of the PCB is required. The results are shown from a selection of PCBs and limitations of the measurement discussed. The data collected can be used in power balance or computational modelling to allow engineers to determine a more accurate estimate of enclosure SE when designing electronic systems.

AB - It is important when considering the shielding effectiveness (SE) of an enclosure to take into account any contents the enclosure may have. Contents such as printed circuit boards (PCBs) will absorb electromagnetic energy and so affect the SE of the enclosure. Previously, it has been shown that the absorption cross section (ACS) of PCBs and the transmission cross section of apertures can be used in the power balance method to predict the SE of simple enclosures. However, in a more realistic enclosure, multiple cavities may be formed by PCBs that cover a large proportion of the enclosure cross section. In this case, the transmission through the PCBs, as well as through the apertures, needs to be considered. In this paper, we describe measuring the transmission through a PCB using a method normally used to measure the SE of planar samples. This measurement is quick and efficient to carry out, as no special preparation of the PCB is required. The results are shown from a selection of PCBs and limitations of the measurement discussed. The data collected can be used in power balance or computational modelling to allow engineers to determine a more accurate estimate of enclosure SE when designing electronic systems.

KW - Electromagnetic shielding

KW - Power balance

U2 - 10.1109/EMCEurope.2017.8094643

DO - 10.1109/EMCEurope.2017.8094643

M3 - Conference contribution

BT - 2017 International Symposium on Electromagnetic Compatibility - EMC EUROPE

CY - Angers

Y2 - 4 September 2017 through 8 September 2017

ER -

Measurement of Transmission through Printed Circuit Boards: Application to Enclosure Shielding

Abstract

Conference

Bibliographical note

Keywords

Access to Document

Projects

Electromagnetic shielding properties of Materials, and Enclosures

Shielding Measurement of Electrically Large Enclosures with Contents

Cite this