Accurate Analysis of Reverberation Field Penetration Into an Equipment-Level Enclosure

Fedeli, Dario; Gradoni, Gabriele; Primiani, Valter Mariani; Moglie, Franco

doi:10.1109/temc.2009.2013456

Cited by 44 publications

(12 citation statements)

References 16 publications

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“…RCs are successfully used to characterize materials and structures from a shielding point of view, also considering composite materials for architectural shielding [21][22][23]. Moreover, it was demonstrated that the complex random field created inside an RC can be numerically simulated using a finite summation of random plane waves [24,25], which makes straightforward to predict the behavior of complex equipment placed inside an RC [26][27][28][29]. In this context, the present paper considers the penetration of the RC field inside a lossy material in order to characterize its absorbing properties.…”

Section: Introductionmentioning

confidence: 99%

Absorbing Cross Section in Reverberation Chamber: Experimental and Numerical Results

Gradoni¹,

Micheli²,

Moglie³

et al. 2012

PIER B

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Abstract-Reverberation chamber (RC) test facility allows to determine the absorbing cross section (ACS) of lossy materials under a random field excitation. Measurements are based on the quality factor variation produced by the sample under test presence with respect to the empty chamber condition. Simulations are based on the representation of the RC electromagnetic field by means of a random plane wave superposition. A finite-difference time-domain code is used to compute the material absorbed power and to recover a numerical ACS. The method sensibility is stressed by application to small size samples. Comparison between numerical and experimental data reveals a satisfactory agreement. Results for different materials are presented in the paper: soft foam absorbers, carbon foam sheets, and carbon/carbon sheets.

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Section: Introductionmentioning

confidence: 99%

Absorbing Cross Section in Reverberation Chamber: Experimental and Numerical Results

Gradoni¹,

Micheli²,

Moglie³

et al. 2012

PIER B

Self Cite

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“…Small enclosures can be examined on standard test sites, as in [3]- [10], however, the existing standards are not concerned with methods of testing of small devices. SE measurements and calculations are typically based on comparisons of field intensity in both the presence and absence of the tested enclosure.…”

Section: Introductionmentioning

confidence: 99%

Internal stirring: an approach to approximate evaluation of shielding effectiveness of small slotted enclosures

Rusiecki¹,

Aniserowicz

Duffy

et al. 2016

IET Science, Measurement & Technology

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Abstract:A new technique for approximate evaluation of a small slotted enclosure shielding effectiveness (SE) is proposed. The enclosure under test is equipped with a built-in, rotating, conductive stirrer, and the SE is determined for discrete angles of the stirrer position. The SE characteristics computed in the frequency domain for the enclosure with the stirrer are compared to those of the enclosure containing different arrangements of printed circuit boards. The paper concludes that the inclusion of an internal stirrer is a potentially beneficial approach to shielding effectiveness testing.

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“…Several numerical methods have been used to calculate SE, including the finite-difference time-domain method [3]- [6], the method of moments [7]- [10], the finite-element method [11], [12] and the transmission-line matrix method (TLM) [12], [13]. These numerical methods can obtain quite precise results but always require a large amount of computer memory and computational time.…”

Section: Introductionmentioning

confidence: 99%

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

Liu

Nie

2014

IEEE Trans. Electromagn. Compat.

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In this paper, Robinson's analytical formulation is extended to calculate the shielding effectiveness of an shielding enclosure at off-axis observation points with an off-axis aperture. First, we give the procedure of extending the original analytical formulation. Then, the transmission-line matrix method (TLM) is utilized to validate the extended analytical formulation. The application range of the extended method is decided by comparing to TLM, and the good agreement between the results calculated by two methods indicates that the extended analytical formulation is efficient in predicting the shielding effectiveness of an enclosure at different observation points with an off-axis aperture. Through the intensive calculation and analysis, the distribution of SE inside the enclosure and the variation of SE with aperture position can be obtained, which may be used as a guideline for designing shielding enclosures.

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Accurate Analysis of Reverberation Field Penetration Into an Equipment-Level Enclosure

Cited by 44 publications

References 16 publications

Absorbing Cross Section in Reverberation Chamber: Experimental and Numerical Results

Absorbing Cross Section in Reverberation Chamber: Experimental and Numerical Results

Internal stirring: an approach to approximate evaluation of shielding effectiveness of small slotted enclosures

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

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