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首页> 外文期刊>International Journal of Microwave and Wireless Technologies >Room shielding with frequency-selective surfaces for electromagnetic health application
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Room shielding with frequency-selective surfaces for electromagnetic health application

机译：用于电磁卫生应用的带有频率选择表面的房间屏蔽

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摘要

Use of frequency-selective surfaces (FSSs) is proposed to shield rooms against electromagnetic fields in order to achieve secure indoor communications and reduce human exposure to external fields. The secure room is designed using two-layer FSSs with an FR4 substrate to cover 10-12 GHz frequency band. Different elements in each layer and shift in the position of elements are the reasons for more than 3 GHz bandwidths in X band. The performance of the structure is also stable versus the misaligned position of layers. An equivalent circuit model is proposed for the structure and results show - 20 dB isolation between inside and outside of the room in the desired frequency band. Bio tissue is located inside the cubic structure with FSS walls and the results of the specific absorption rate are demonstrated and compared in two rooms with FSS cover on concrete walls and a room with concrete walls. The 17 x 17 cm(2) two-layer FSS is fabricated for the measurement and the results are presented. The designed FSS can be used in the construction of wave-isolated room for any application.
机译：提出使用频率选择表面（FSS）来屏蔽房间免受电磁场的干扰，以实现安全的室内通信并减少人为暴露于外部场。安全室使用带有FR4基板的两层FSS设计，覆盖10-12 GHz频带。每层中的不同元素以及元素位置的变化是X波段超过3 GHz带宽的原因。该结构的性能相对于层的未对准位置也是稳定的。针对该结构提出了等效电路模型，结果表明-在所需频带内，房间内部和外部之间的隔离度为20 dB。生物组织位于带有FSS壁的立方结构内部，并且在两个FSS覆盖混凝土墙的房间和一个带有混凝土墙的房间中证明并比较了比吸收率的结果。制作了17 x 17 cm（2）的两层FSS用于测量，并给出了结果。设计的FSS可以用于任何应用场合的隔波室构造。

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