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一种用于工业5.0的新型便携式消声室，采用超薄二维微波吸收体。

A novel portable anechoic chamber using ultra-thin 2D microwave absorber for industrial 5.0.

作者信息

Baghel Amit Kumar, Bikrat Youssef, Tavares Joana, Chaves Henrique, Oliveira Vinicius Uchoa, Pinho Pedro, Carvalho Nuno Borges, Alves Helena

机构信息

Instituto de Telecomunicações, 3810-193, Aveiro, Portugal.

LES, PHYSIC DÉPARTEMENT, MOHAMMED 1st OUJDA, 60000, Oujda, Morocco.

出版信息

Sci Rep. 2024 Mar 4;14(1):5358. doi: 10.1038/s41598-024-55595-4.

DOI:10.1038/s41598-024-55595-4
PMID:38438457
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10912666/
Abstract

In this paper, the authors, for the first time, have shown the use of 2D conformal microwave absorbing material (MAM) in the design and fabrication of a portable Anechoic chamber (AC). The MAM is fabricated on the transparent and conductive metal oxide layer named indium-tin-oxide (ITO) with Polyethylene terephthalate as the substrate and the ground plane for zero transmission having overall thickness of 0.012 where is calculated at 0.7 GHz. The MAM is characterized for 0.7 to 18 GHz for both TE- and TM-polarisation and oblique incidence. High sheet resistance, dipole-like resonance structure patterned on the ITO, and the air-spacing between the layers is optimized to achieve broadband absorption. The MAM is used to line the six sides of the rectangular anechoic chamber having inner dimensions of: (L × W × H: 850 × 650 × 720 mm). The return loss (RL), gain, and radiation pattern of three antenna working at 1.56, 2.43, and 4.93 GHz are analyzed inside the AC. The measurement results for all frequencies very well match with the simulation studies, thus validating and opening the door for the future use of ultra-thin and planar MAM in the AC.

摘要

在本文中，作者首次展示了二维共形微波吸收材料（MAM）在便携式消声室（AC）设计与制造中的应用。该MAM以聚对苯二甲酸乙二酯为基底和接地平面，在名为铟锡氧化物（ITO）的透明导电金属氧化物层上制造，用于实现零透射，总厚度为0.012（在0.7 GHz频率下计算得出）。对该MAM在0.7至18 GHz频率范围内的TE极化和TM极化以及斜入射情况进行了表征。通过优化高薄层电阻、ITO上的偶极子状谐振结构以及各层之间的空气间距来实现宽带吸收。该MAM用于衬砌内部尺寸为（长×宽×高：850×650×720 mm）的矩形消声室的六个面。在消声室内分析了工作在1.56、2.43和4.93 GHz的三个天线的回波损耗（RL）、增益和辐射方向图。所有频率的测量结果与模拟研究非常吻合，从而验证了超薄平面MAM在消声室中的应用，并为其未来使用打开了大门。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/384c/10912666/9029f103becb/41598_2024_55595_Fig14_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/384c/10912666/a715fdbdc9c8/41598_2024_55595_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/384c/10912666/2969325183c1/41598_2024_55595_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/384c/10912666/52d5162de70a/41598_2024_55595_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/384c/10912666/60b473171571/41598_2024_55595_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/384c/10912666/7070d81b3001/41598_2024_55595_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/384c/10912666/cc4ab14cb258/41598_2024_55595_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/384c/10912666/09b8be780ad0/41598_2024_55595_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/384c/10912666/60d8f0183b95/41598_2024_55595_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/384c/10912666/20c572860b25/41598_2024_55595_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/384c/10912666/c6b386794735/41598_2024_55595_Fig10_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/384c/10912666/cff75a42aa69/41598_2024_55595_Fig11_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/384c/10912666/9074e74b1740/41598_2024_55595_Fig12_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/384c/10912666/48003cb5f29b/41598_2024_55595_Fig13_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/384c/10912666/9029f103becb/41598_2024_55595_Fig14_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/384c/10912666/a715fdbdc9c8/41598_2024_55595_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/384c/10912666/2969325183c1/41598_2024_55595_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/384c/10912666/52d5162de70a/41598_2024_55595_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/384c/10912666/60b473171571/41598_2024_55595_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/384c/10912666/7070d81b3001/41598_2024_55595_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/384c/10912666/cc4ab14cb258/41598_2024_55595_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/384c/10912666/09b8be780ad0/41598_2024_55595_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/384c/10912666/60d8f0183b95/41598_2024_55595_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/384c/10912666/20c572860b25/41598_2024_55595_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/384c/10912666/c6b386794735/41598_2024_55595_Fig10_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/384c/10912666/cff75a42aa69/41598_2024_55595_Fig11_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/384c/10912666/9074e74b1740/41598_2024_55595_Fig12_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/384c/10912666/48003cb5f29b/41598_2024_55595_Fig13_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/384c/10912666/9029f103becb/41598_2024_55595_Fig14_HTML.jpg

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