Virtual metal model for fast computation of shielding effectiveness of blended electromagnetic interference shielding fabric

Wang, Xiuchen; Liu, Zhe; Zhang, Zhong

doi:10.3233/jae-131738

Cited by 17 publications

(8 citation statements)

References 34 publications

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“…The phenomenon is determined by the performance of the stainless steel metal. If the fabric is considered as an ideal shield, the SE can be calculated as [20]: 168…”

Section: Frequency Influence On Se Under Same Mfcpuamentioning

confidence: 99%

“…The above is an interesting phenomenon which is discovered for the first time. In existing density research of the EMS fabric [1 -4], metal fiber research [12,14,15,20,21] and related study review [23], they only proposed that the SE of the fabric was changed with the change of the density. However, they did not discover and reveal the law that the SE was not influenced by the change of the warp density and the weft density when the total density was the same.…”

Section: Weft Density and Warp Density Influence Onmentioning

confidence: 99%

See 1 more Smart Citation

Influence of Metal Fiber Content and Arrangement on Shielding Effectiveness for Blended Electromagnetic Shielding Fabric

Liu¹,

Rong²,

Yang³

et al. 2015

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More metal fiber content of blended electromagnetic shielding (EMS) fabric results in higher shielding effectiveness (SE) of the fabric. However, there is little information about the influence of the metal fiber content on the SE considering the fabric structure. This study constructs an index of metal fiber content per unit area (MFCPUA), and discusses the influence of the metal fiber content on the SE of the EMS fabric when fabric parameters are changed. Computations for the MFCPUA and the thickness and porosity of the metal fiber arrangement are given, and then experiments are designed to test the SE of different EMS fabric samples. According to the experimental results, the influence of the MFCPUA on the SE is analyzed and influence mechanism is discussed when the fabric weaves, emission frequencies and weft and warp densities are changed. The results show that the MFCPUA and the SE are in positive increase relation; the frequency and the SE are in the negative increase relation when the metal fiber content is unchanged. The influence of the fabric weave type on the SE depends on the length of the yarn floats; the SE values of fabric with the same weave are the same when the MFCPUA is the same regardless of the fabric density.

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“…The phenomenon is determined by the performance of the stainless steel metal. If the fabric is considered as an ideal shield, the SE can be calculated as [20]: 168…”

Section: Frequency Influence On Se Under Same Mfcpuamentioning

confidence: 99%

Section: Weft Density and Warp Density Influence Onmentioning

confidence: 99%

Influence of Metal Fiber Content and Arrangement on Shielding Effectiveness for Blended Electromagnetic Shielding Fabric

Liu¹,

Rong²,

Yang³

et al. 2015

Self Cite

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“…The SE (SE fab and SE fab ) of the fabric without hole is tested using the waveguide testing system [34]. The testing system is composed of emission sensors, signal receiving sensor, and network analyzer.…”

Section: Experimental Equipmentsmentioning

confidence: 99%

Rapid computation model for accurate evaluation of electromagnetic interference shielding effectiveness of fabric with hole based on equivalent coefficient

Wang

Liu

Zhang

2015

JAE

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Though electromagnetic interference (EMI) shielding fabric with rectangular hole has wide application in various fields, there is not a mature approach to calculate its shielding effectiveness (SE) at present. This paper constructs a rapid computation model of the SE of the EMI shielding fabric with hole based on equivalent coefficient. Firstly, the rectangular hole characteristic is analyzed and a structure model of the rectangular hole under the consideration of the hole edge characteristic is described. The equivalent relationship between the fabric hole and the standard hole is presented according to the equivalent theory. The rapid computation model of the SE of the EMI shielding fabric with hole is built including the equivalent coefficient and transmission coefficient according to the EMI shielding theory and the method to determine the equivalent coefficient is also given. Finally, the computation model is verified by experiments. The results show that the accuracy and the computational efficiency of the proposed model are good, and the model can be applied to the fabrics with wide weaves and various rectangular hole sizes.

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“…Liu et al (2015a) and Wang et al (2015) further discussed the influence of the holes on the SE of the clothing fabric and pointed out the influence rule of the holes on the SE of the EMS clothing fabric in plane state. Other researches on the EMS clothing are mainly focused on the shielding performance, such as the shielding fiber performance (Vojtech and Neruda, 2013;Duan et al, 2019), identification and analysis of the shielding fiber in fabric (Liu et al, 2017b;Wang et al, 2017), influencing factors of the SE and the reflection performance (Li et al, 2019), the SE prediction (Yang et al, 2019) and the model construction (Wang et al, 2014;Liu et al, 2015b). In above literatures, researchers have done a lot of useful work in the design, manufacture and test methods of the EMS clothing, but there is little research on the influencing rules of the shielding performance of the sleeve.…”

Section: Introductionmentioning

confidence: 99%

Influencing factors and rules of shielding effectiveness of electromagnetic shielding clothing sleeve

Wang

Liu

et al. 2020

IJCST

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PurposeThe change rules of the shielding effectiveness (SE) of the sleeve has not been clarified, which leads to the lack of the basis for the design, manufacture and evaluation of the electromagnetic shielding (EMS) clothing.Design/methodology/approachAccording to a simplified analysis model, a series of sleeve samples with different fabrics and styles are designed and manufactured. The SE of the sleeve is tested with the proposed special test method in a semi-anechoic chamber to analyze the influence of different factors on the SE of the sleeve.FindingsThe SE is greatly reduced about 60–90% after the fabric is manufactured into the sleeve. The larger the sleeve length is, the higher the peak value of the SE is. When the sleeve length is low, the SE value is easy to appear negative. As the cuff circumference increases, the SE of the sleeve will change with the frequency band. The influence of the cuff style on the SE of the sleeve mainly depends on the cuff width and style. The larger the cuff width is, the lower the overall SE of the sleeve is. The more wrinkles there are at the cuff, the better the SE of the sleeve is.Originality/valueOur results provide a reference for the design, production and evaluation of the sleeve and the whole EMS clothing.

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Virtual metal model for fast computation of shielding effectiveness of blended electromagnetic interference shielding fabric

Cited by 17 publications

References 34 publications

Influence of Metal Fiber Content and Arrangement on Shielding Effectiveness for Blended Electromagnetic Shielding Fabric

Influence of Metal Fiber Content and Arrangement on Shielding Effectiveness for Blended Electromagnetic Shielding Fabric

Rapid computation model for accurate evaluation of electromagnetic interference shielding effectiveness of fabric with hole based on equivalent coefficient

Influencing factors and rules of shielding effectiveness of electromagnetic shielding clothing sleeve

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