Hierarchically structured elastomer for absorption-dominated electromagnetic interference shielding in an ultra-wide band

2021 ◽  
pp. 109221
Author(s):  
Xing-Yu Li ◽  
Pan-Pan Zhao ◽  
Lin-Xuan Han ◽  
Cong Deng
Keyword(s):  
Electromagnetic Interference ◽  
Wide Band ◽  
Ultra Wide Band ◽  
Electromagnetic Interference Shielding

scholarly journals Numerical Assessment of Electromagnetic Radiated Emissions from an UWB Radiators Located Inside Metallic Enclosures with Small Air-Flow Openings

2018 ◽  
Vol 15 (2) ◽  
pp. 155
Author(s):  
Mohammed M Bait-Suwailm ◽  
Boudelliou A Boudelliou ◽  
Naser Al-Tarhuni
Keyword(s):  
Electromagnetic Interference ◽  
Heat Dissipation ◽  
Air Flow ◽  
Electronic Devices ◽  
Wide Band ◽  
Ultra Wide Band ◽  
Shielding Effectiveness ◽  
Numerical Assessment ◽  
Radiated Emissions ◽  
Circular Holes

Shielding effectiveness of electronic devices and computing devices is  essential at design stages. Devices should pass electromagnetic interference/compatibility tests for certification purposes. In this paper, we investigate the electromagnetic radiation leakage from modern personal computers and mobile electronic devices due to an ultra-wide band source of noise. Openings and slots are always unavoidable in electronic devices, for instance openings in computers for air-flow and heat dissipation. Three different designs of enclosure’s covers with apertures are modeled for this purpose. The three covers cases comprise the use of rectangular arranged circular holes, hexagonal arranged circular holes, and square openings. For comparison purposes, a shielded enclosure with no openings is considered. The shielding effectiveness is numerically assessed here by capturing electric field strength that is modeled using probes located at two different distances, near- and far-away from the metallic enclosure.

Morphology, size, and defect engineering in CeOHCO3 hierarchical structures for ultra-wide band microwave absorption

2021 ◽  
Author(s):  
Haiyan Wei ◽  
Xinxin Wang ◽  
Guoxiu Tong ◽  
Baoxin Fan ◽  
Xiaojuan Wang ◽  
...  
Keyword(s):  
Electromagnetic Wave ◽  
Microwave Absorption ◽  
Electromagnetic Interference ◽  
Hierarchical Structures ◽  
Wide Band ◽  
Ultra Wide Band ◽  
Defect Engineering ◽  
Microwave Assisted

The growing electromagnetic interference problem triggers higher requirements for the exploration into new electromagnetic wave (EMW) absorbers and new absorption mechanisms. Herein, we developed a simple and rapid microwave-assisted hydrothermal...

scholarly journals Light weight and flexible poly(ether ether ketone) based composite film with excellent thermal stability and mechanical properties for wide-band electromagnetic interference shielding

RSC Advances ◽  
2018 ◽  
Vol 8 (6) ◽  
pp. 3296-3303 ◽  
Author(s):  
Ruiqi Na ◽  
Jinying Liu ◽  
Guibin Wang ◽  
Shuling Zhang
Keyword(s):  
Thermal Stability ◽  
Composite Film ◽  
Electromagnetic Interference ◽  
Wide Band ◽  
Light Weight ◽  
Electromagnetic Interference Shielding ◽  
Excellent Thermal Stability ◽  
Ether Ether Ketone ◽  
Poly Ether Ether Ketone ◽  
Ether Ketone

Capitalizing on wrapped MWCNTs and high-temperature lubricants produce a light weight and flexible poly(ether ether ketone) composite film with excellent thermal stability and mechanical property for wide-band electromagnetic interference shielding.

scholarly journals Numerical Assessment of Electromagnetic Radiated Emissions from an UWB Radiators Located Inside Metallic Enclosures with Small Air-Flow Openings

2018 ◽  
Vol 15 (2) ◽  
pp. 55
Author(s):  
Mohammed M Bait-Suwailm ◽  
Boudelliou A Boudelliou ◽  
Naser Al-Tarhuni
Keyword(s):  
Electromagnetic Interference ◽  
Heat Dissipation ◽  
Air Flow ◽  
Electronic Devices ◽  
Wide Band ◽  
Ultra Wide Band ◽  
Shielding Effectiveness ◽  
Numerical Assessment ◽  
Radiated Emissions ◽  
Circular Holes

Shielding effectiveness of electronic devices and computing devices is  essential at design stages. Devices should pass electromagnetic interference/compatibility tests for certification purposes. In this paper, we investigate the electromagnetic radiation leakage from modern personal computers and mobile electronic devices due to an ultra-wide band source of noise. Openings and slots are always unavoidable in electronic devices, for instance openings in computers for air-flow and heat dissipation. Three different designs of enclosure’s covers with apertures are modeled for this purpose. The three covers cases comprise the use of rectangular arranged circular holes, hexagonal arranged circular holes, and square openings. For comparison purposes, a shielded enclosure with no openings is considered. The shielding effectiveness is numerically assessed here by capturing electric field strength that is modeled using probes located at two different distances, near- and far-away from the metallic enclosure.

Activity Recognition using Ultra Wide Band Range-Time Scan

2021 ◽  
Author(s):  
Arijit Chowdhury ◽  
Taniya Das ◽  
Smriti Rani ◽  
Anwesha Khasnobish ◽  
Tapas Chakravarty
Keyword(s):  
Activity Recognition ◽  
Wide Band ◽  
Ultra Wide Band ◽  
Time Scan

Features of solving radar problems using ultra-wide-band signals

2020 ◽  
Vol 9 (2) ◽  
pp. 74-81
Author(s):  
B.A. Lagovsky ◽  
◽  
A.B. Samokhin ◽  
Keyword(s):  
Wide Band ◽  
Ultra Wide Band

Ultra-Wide-Band Wireless Sensor Network for Transmission of Streaming Data

2018 ◽  
Vol 7 (1) ◽  
pp. 91-102
Author(s):  
Yu.V. Andreyev ◽  
◽  
L.V. Kuzmin ◽  
M.G. Popov ◽  
A.I. Ryshov ◽  
...  
Keyword(s):  
Wireless Sensor Network ◽  
Sensor Network ◽  
Wide Band ◽  
Streaming Data ◽  
Wireless Sensor ◽  
Ultra Wide Band
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