The Influence of Various Commonly Used Building Materials on the Shielding Effectiveness, Reflection and Absorption of the Electromagnetic Wave

被引:7
作者
Pavlik, Marek [1 ]
Beres, Matej [2 ]
Bena, Lubomir [1 ,3 ]
机构
[1] Tech Univ Kosice, Dept Elect Power Engn, Kosice 04001, Slovakia
[2] Tech Univ Kosice, Dept Theoret & Ind Elect Engn, Kosice 04001, Slovakia
[3] Rzeszow Univ Technol, Dept Power Elect & Power Engn, PL-35959 Rzeszow, Poland
来源
APPLIED SCIENCES-BASEL | 2024年 / 14卷 / 06期
关键词
construction materials; electromagnetic interference; shielding effectiveness; reflection; absorption; frequency-dependent behavior;
D O I
10.3390/app14062521
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
People spend two-thirds of their time in buildings. Building materials are, therefore, natural shielding for us. Many studies describe the shielding effect of non-building materials. This study evaluates the shielding effectiveness (SE) of electromagnetic fields for various building materials over a frequency range of 1 GHz to 9 GHz. Measurements of SE, reflection (R), and calculated absorption (A) were conducted to determine the shielding properties of mineral wool (MW), hardened polystyrene (PT), extruded polystyrene (PE), polyurethane board (PUR), brick wall (BW), brick wall filled with mineral wool (BW-MW), and concrete wall. The results demonstrate that MW, PT, PE, and PUR exhibit low SE and R, indicating minimal shielding capabilities, with absorption values that do not significantly deviate from the level of measurement uncertainty. Conversely, BW, BW-MW, and concrete wall materials exhibit high SE, with notably increased absorption at higher frequencies, highlighting their potential for effective EMI shielding. Particularly, the concrete wall presents the highest absorption values, making it a superior choice for shielding applications. Reflection trends revealed a plateau for BW in the 6 GHz to 9 GHz range, indicating a frequency-dependent behavior of shielding mechanisms. This study underscores the importance of balancing reflective and absorptive properties in shielding materials and suggests that composite materials may offer enhanced performance. The findings of this research provide guidance for the selection and design of shielding materials in environments with a frequency spectrum of electromagnetic frequencies from 1 GHz to 9 GHz.
引用
收藏
页数:18
相关论文
共 23 条
[1]  
[Anonymous], 2009, Exposure to high frequency electromagnetic fields, biological effects and health consequences (100 kHz-300 GHz)
[2]   Effects of mobile phones electromagnetic radiation on patients with epilepsy: an EEG study [J].
Azmy, Radwa ;
Shamloul, Reham ;
Elsawy, Noha Abdalla Farag ;
Elkholy, Saly ;
Maher, Eman .
EGYPTIAN JOURNAL OF NEUROLOGY PSYCHIATRY AND NEUROSURGERY, 2020, 56 (01)
[3]  
Ceskovic M., 2017, Aeronautika, V17, P230
[4]  
Chen CC, 2017, PROCEEDINGS OF 2017 7TH IEEE INTERNATIONAL SYMPOSIUM ON MICROWAVE, ANTENNA, PROPAGATION, AND EMC TECHNOLOGIES (MAPE), P336, DOI 10.1109/MAPE.2017.8250869
[5]  
He L., 2023, 2023 INT C MICR MILL, P1, DOI [10.1109/ICMMT58241.2023.10276418, DOI 10.1109/ICMMT58241.2023.10276418]
[6]  
Health Protection Agency, 2008, STAT MAGN FIELDS REP
[7]  
ICNIRP SCI Review, Mobile Phones, Brain Tumors, and the Interphone Study: Where Are We Now
[8]  
Jin Z., 2022, P 2022 INT APPL COMP, P1, DOI [10.1109/ACES-China56081.2022.10064848, DOI 10.1109/ACES-CHINA56081.2022.10064848]
[9]   An Equivalent Method for Measuring Shielding Effectiveness of a Microminiature Electromagnetic Shield Using Its Large-Scale Model [J].
Jin, Zusheng ;
Li, Jianxuan ;
Shi, Jialin ;
Zhang, Yong ;
Zuo, Yu ;
Cai, Mingjuan .
2022 IEEE 9TH INTERNATIONAL SYMPOSIUM ON MICROWAVE, ANTENNA, PROPAGATION AND EMC TECHNOLOGIES FOR WIRELESS COMMUNICATIONS, MAPE, 2022, :361-365
[10]  
Konig H., 2001, Neviditelna Hrozba, Elektromagneticka Pole Kolem Nas, P156