Relation between shielding effectiveness and tightness of electromagnetic shielding fabric

Liu, Zhe; Wang, Xiuchen

doi:10.1177/1528083713477440

Cited by 27 publications

(22 citation statements)

References 19 publications

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“…Researchers also make efforts to study the electromagnetic (EM) properties of textiles and develop EM-functional fabrics [10,11]. We all know the conductive property, dielectric property, antistatic property and many related products have appeared in the market, like EM shielding fabric, anti-ultraviolet fibre, far-infrared health textile etc.…”

Section: Introductionmentioning

confidence: 99%

The novel frequency selective fabric and application research

Guan

Xiao²,

Shi

et al. 2015

Journal of Industrial Textiles

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There have been various efforts on frequency selective surface in recent years, and of course, some research progress has been made, especially in numerical calculation and simulation field. However, it seems that less work is done on the processing and forming methods. Soft fabrics are periodic and have advantages over the rigid materials in lightweight, softness, low bending rigidity, which make it possible and meaningful to study their filtering property as the medium in electromagnetic field. In this paper, a kind of electromagnetic functional textile based on frequency selective surface was proposed specifically for 10 GHz, dominant frequency of X-band radar. The full-wave simulation software, HFSS v14, was used for theoretical simulation and optimization, and two complementary cross-shaped unit cells with optimum size were obtained. Then, the frequency selective fabrics were manufactured through silk-screen-printing technology and measured using transmission method. It showed that the measured and simulated results had good consistency, and the fabricated frequency selective fabrics had ideal band-stop or band-pass performance. Finally, according to the analysis of S 21 curve and transmission line equivalent circuit modal, the filtering mechanism was explained and the great potential in practical application of frequency selective fabrics was further illustrated.

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Section: Introductionmentioning

confidence: 99%

The novel frequency selective fabric and application research

Guan

Xiao²,

Shi

et al. 2015

Journal of Industrial Textiles

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“…The fabric density and tightness indicators describe the distribution of tiny interstices in the fabric. Scholars [27][28][29][30][31][32] have discussed the relationship between above two indicators and the SE. however, the interstice is different from the hole.…”

Section: Introductionmentioning

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

International Journal of Applied Electromagnetics and Mechanics

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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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“…According to the theory that the SE is determined by the number of the crosslink fibers [6], the number of the conductive fibers is halved. Therefore, L t can be rewritten as:…”

Section: Se Prediction Modelmentioning

confidence: 99%

“…Related researches focus on the influence of the fabric density and tightness indicators on the SE [2][3][4][5][6]. The two indicators which describe the distribution of tiny interstices in the fabric are different from the indicator of the hole.…”

Section: Introductionmentioning

confidence: 99%

Prediction Model of Shielding Effectiveness of Electromagnetic Shielding Fabric With Rectangular Hole

Liu¹,

Yang²,

Wang³

et al. 2014

PIER C

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Abstract-Electromagnetic shielding (EMS) fabrics often need to design rectangular holes for application. However, there is not a mature approach to predict the shielding effectiveness (SE) of the EMS fabric with rectangular hole. This paper proposes that there are a number of loose regions of conductive fibers on the hole edge of the EMS fabric, and establishes a SE prediction model of the EMS fabric with rectangular hole. Firstly, the loose region of conductive fiber is analyzed to build a model of the rectangular hole. Secondly, the SE prediction model of the EMS fabric with rectangular hole is deduced according to the transmission coefficient of the normal region, hole region and loose region, and the determining method of the loose region is given. Finally, the prediction model is verified by experiments. The results show that the model can successfully predict the SE of the EMS fabric with the plain, twill and satin weaves, and the factors such as frequency, fabric density and metal fiber content have little influence on the model. The proposed model can provide a valuable reference for the rational design of the rectangular hole of the EMS fabric.

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Relation between shielding effectiveness and tightness of electromagnetic shielding fabric

Cited by 27 publications

References 19 publications

The novel frequency selective fabric and application research

The novel frequency selective fabric and application research

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

Prediction Model of Shielding Effectiveness of Electromagnetic Shielding Fabric With Rectangular Hole

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