An Extended Analytical Formulation for Fast Prediction of Shielding Effectiveness of an Enclosure at Different Observation Points With an off-Axis Aperture

Liu, Enbo; Du, Pengfei; Nie, Bao-Lin

doi:10.1109/temc.2013.2289742

Cited by 38 publications

(15 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…However, the method can only handle the cases that i) the incident plane wave has one polarization and direction of travel, ii) the aperture positioned centrally in the front panel of the enclosure, iii) the observation point positioned at the central axis of the enclosure, iv) only the fundamental propagation mode is considered. Thus a great deal of work has been done to improve Robinson's model, which can solve the problem of oblique plane wave incidence direction, arbitrary aperture position, arbitrary observation point position, multiple sides apertures, inner windows and multi-mode condition [5][6][7][8][9][10][11][12][13]. However, these methods cannot solve the problem of electrically large aperture.…”

Section: Introductionmentioning

confidence: 99%

Study of the Calculation Method of Shielding Effectiveness of Rectangle Enclosure With an Electrically Large Aperture

Hu¹,

Sun²

2017

PIER M

View full text Add to dashboard Cite

Abstract-An analytical model based on the Bethe's theory of diffraction by small holes is presented to predict the shielding effectiveness (SE) of metallic rectangular enclosure with electrically large aperture under plane wave illumination over a wide frequency range (0 ∼ 3 GHz). In this model, the aperture is represented as electric and magnetic dipoles located at the center of the aperture, and the coupling relation between external plane wave and electromagnetic field inside the enclosure is established. The approximate solution of electromagnetic field distribution inside the enclosure is obtained in terms of the integrals of the electric and magnetic dynamic Green function. Finally, the influence of enclosure thickness on SE is calculated by introducing thickness attenuation coefficient. The model considers the effect of the thickness on the calculation results and is simple with low computation complex and high estimation accuracy. Besides, the effects of parameters like enclosure and aperture dimensions, aperture and observation point positions, incident and polarization direction of the plane wave on SE can be analyzed comprehensively based on the model. Simulation results of the proposed model are in accord with that of the TLM method, which verifies the accuracy and reliability of the model.

show abstract

Section: Introductionmentioning

confidence: 99%

Study of the Calculation Method of Shielding Effectiveness of Rectangle Enclosure With an Electrically Large Aperture

Hu¹,

Sun²

2017

PIER M

View full text Add to dashboard Cite

show abstract

“…If this is not possible, numerical or analytical methods can be used for determining SE. Analytical methods for SE calculation of the shielding enclosures with aperture are described in [2,3]. The numerical methods are well usable here, because it is easy to change geometry of the model.…”

Section: Introductionmentioning

confidence: 99%

Shielding Effectiveness Simulation of Small Perforated Shielding Enclosures Using FEM

Kubík

Skála

2016

Energies

View full text Add to dashboard Cite

Numerical simulation of shielding effectiveness (SE) of a perforated shielding enclosure is carried out, using the finite element method (FEM). Possibilities of model definitions and differences between 2D and 3D models are discussed. An important part of any simulation is verification of the model results-here the simulation result are verified in terms of convergence of the model in dependence on the degrees of freedom (DOF) and by measurements. The experimental method is based on measurement of electric field inside the enclosure using an electric field probe with small dimensions is described in the paper. Solution of an illustrative example of SE by FEM is shown and simulation results are verified by experiments.

show abstract

“…In this study, computer simulating technology on electromagnetic compatibility (CST TM -EMC) based on finite integration technique (FIT) in time-domain [20] is used to acquire accurate modeling results for comprehensive analysis of ESE of enclosures with apertures in 0-1 GHz in many different viewpoints. It should be noted that some studies calculate ESE of enclosure with apertures using CST microwave simulation [6,12,21]. Among studies in literature about SE, only a few analyze cases for some shielding parameters as aperture size, enclosure size, and enclosure depth and probe position.…”

Section: Introductionmentioning

confidence: 99%

Comprehensive Analysis of Shielding Effectiveness of Enclosures With Apertures: Parametrical Approach

Başyiğit¹,

Çağlar²

2016

PIER C

View full text Add to dashboard Cite

Abstract-The main section of this paper comprehensively analyzes electrical shielding effectiveness (ESE) of enclosures with rectangular apertures for producing valuable information used in electromagnetic interference and compatibility guiding enclosure designers of electronic devices. Firstly, results of conventional analytical equivalent circuit model, measurement and simulation with computer simulating technology (CST TM ) of ESE for an enclosure with a single aperture size are compared to improve closeness in different models at 0-1 GHz. After getting a suitable simulation model, all possible parameters with detailed cases are examined to approach beneficial conclusions. Especially, size of enclosure, aperture size, aperture shape, configuration and number of apertures, probe position parameters that affect ESE are investigated. Also, some double parameters are analyzed together to achieve detailed review as two enclosure dimensions, two aperture dimensions and probe position with enclosure depth. Therefore, three-dimensional graphical investigations are performed. Obtained results of these parametric approaches are explained with acceptable reasons. Finally, detailed and itemized comments are given about simulated results of ESE parameters, which are collected from previous sections.

show abstract

An Extended Analytical Formulation for Fast Prediction of Shielding Effectiveness of an Enclosure at Different Observation Points With an off-Axis Aperture

Cited by 38 publications

References 25 publications

Study of the Calculation Method of Shielding Effectiveness of Rectangle Enclosure With an Electrically Large Aperture

Study of the Calculation Method of Shielding Effectiveness of Rectangle Enclosure With an Electrically Large Aperture

Shielding Effectiveness Simulation of Small Perforated Shielding Enclosures Using FEM

Comprehensive Analysis of Shielding Effectiveness of Enclosures With Apertures: Parametrical Approach

Contact Info

Product

Resources

About