NDLI: EMI gasket Shielding Effectiveness evaluation method using transmission theory

Content Provider	IEEE Xplore Digital Library
Author	Moongilan, D. Mitchell, E.
Copyright Year	2008
Description	Author affiliation: Chief Technol. Office, Alcatel-Lucent, Murray, NJ (Moongilan, D.)
Abstract	The electromagnetic shielding effectiveness (SE) of EMI gaskets are typically measured using either an aperture attenuation method or a current injection method. The aperture attenuation method measures the radiated field that couple through the seam of an enclosure wall. The ratio of the field intensity levels measured with and without a gasket installed on a seam determines the SE. Since the impedance of the impinging field could not be accurately determined, this method suffers from poor repeatability. The current injection method has better repeatability but limited measurement frequency range. This paper applies transmission theory in predicting the SE of gaskets and an estimation of the measurement errors. The method described in this paper is more accurate and repeatable and the results can be interpolated to lower frequencies below the lowest frequency of measurement. A GTEM was used for the test field generation and a semi-anechoic chamber was used for the radiated field measurements. The SE of Copper-Nickel foam gaskets and Beryllium Copper finger-stock gaskets as used between seams of card-cage circuit-pack faceplates are computed with resulting data presented and discussed.
Starting Page	1
Ending Page	6
File Size	552390
Page Count	6
File Format	PDF
ISBN	9781424416998
DOI	10.1109/ISEMC.2008.4652091
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-08-18
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Gaskets Antenna measurements Transmission line measurements Frequency measurement Copper Fixtures Radio frequency
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

On shielding effectiveness measurements using dual Vibrating Intrinsic Reverberation Chamber

EMI shielding measurements of conductive polymer blends

Comparison of gasket transfer impedance and shielding effectiveness measurements - Part II

Comparison of gasket transfer impedance and shielding effectiveness measurements - Part I

A study on measurement method of shielding effectiveness using loop antenna in low-frequency

Shielding effectiveness measurements using a reverberation chamber

Planar material sample fixture characterization and application for EMI shielding effectiveness evaluations

EMI shielding effectiveness of carbon nanotubes based composites

Gasket shielding performance measurements obtained from four test techniques

EMI gasket Shielding Effectiveness evaluation method using transmission theory

Similar Documents

On shielding effectiveness measurements using dual Vibrating Intrinsic Reverberation Chamber

EMI shielding measurements of conductive polymer blends

Comparison of gasket transfer impedance and shielding effectiveness measurements - Part II

Comparison of gasket transfer impedance and shielding effectiveness measurements - Part I

A study on measurement method of shielding effectiveness using loop antenna in low-frequency

Shielding effectiveness measurements using a reverberation chamber

Planar material sample fixture characterization and application for EMI shielding effectiveness evaluations

EMI shielding effectiveness of carbon nanotubes based composites

Gasket shielding performance measurements obtained from four test techniques

EMI gasket Shielding Effectiveness evaluation method using transmission theory