The Journal of Engineering | |
SE adjustment of planar mesh screen by fine-tuning metal thickness | |
Philippe Besnier1  Cyril Dupeyrat3  Xavier Castel4  Yonathan Corredores5  Patrice Foutrel6  | |
[1] &Defence, SAFRAN Group, 21 avenue du Gros Chêne, 95610 Eragny , France;INSA de Rennes, 20 avenue des Buttes de Coësmes, 35708 Rennes , France;Electronique et de Télécommunications de Rennes, IETR UMR-6164, IUT de Saint-Brieuc/Université de Rennes 1 , 18 rue Henri Wallon, 22004 SAINT-BRIEUC;Institut d'SAFRAN Electronics & | |
关键词: metal film thickness; metal thickness values; transparent screens; fine-tuning metal thickness; optical transparency; SE adjustment; mesh metal films; glass substrate; mesh screens; planar mesh screen; implementation techniques; shielding effectiveness; | |
DOI : 10.1049/joe.2018.0070 | |
学科分类:工程和技术(综合) | |
来源: IET | |
【 摘 要 】
The study presents the thickness effect of mesh metal films printed onto glass substrate on the shielding effectiveness (SE) of such transparent screens. Currently, standards in microelectronic technology use a metal film thickness of between â¼100 nm and few micrometres, depending on the available deposition and implementation techniques. This study demonstrates that the thickness of mesh metal films is a key parameter which needs to be adjusted precisely. A theoretical model based on SE, complex impedance and optical transparency has been developed for this purpose. At microwaves, a relevant selection of the metal thickness values from 0.1 to 2 µm changes the SE at low frequency (from 36 to 40 dB at 2 GHz, respectively) while maintaining it constantly at a higher frequency (close to 20 dB at 18 GHz). The optical transparency of such mesh screens is kept constant over the entire visible light spectrum (78%). Experimental data are in complete agreement with the theoretical values.
【 授权许可】
CC BY
【 预 览 】
Files | Size | Format | View |
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RO201910251032218ZK.pdf | 249KB | download |