有限尺寸的小型化元件频率选择屏蔽面用EBG抑制末发射

Y. Yu, Cheng-Nan Chiu, Yih-Ping Chiou, Tzong-Lin Wu
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引用次数: 0

摘要

一个特殊的表面波只存在于有限尺寸的频率选择表面(FSS)上,以亚波长周期元素的形式排列。这种由外入射引起的表面波会产生强烈的发射端辐射,严重降低了FSS用作电磁屏蔽的性能,特别是在发射端方向上。首次提出了具有电磁带隙(EBG)结构的有限尺寸FSS的混合设计方法,以显著抑制末端发射。具体来说,在我们的设计中,这种抑制甚至可以达到15 dB。为了演示,提供了一个利用新的小型化元件的有限尺寸FSS。FSS的原型被创建,建模和测试。结果表明,模型、全波模拟和实测结果具有良好的一致性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Suppression of end-fired emission for a miniaturized-element frequency-selective shielding surface with finite size using EBG
A special surface wave only exists on a finite-size frequency-selective surface (FSS), arrayed in a sub-wavelength periodic element. This surface wave induced by external incidence may cause strong end-fired emission and highly degrade the performance of the FSS applied as electromagnetic shielding especially along the end-fired direction. A hybrid design method for such a finite-size FSS with electromagnetic bandgap (EBG) structure is first-time proposed to significantly suppress the end-fired emission. Specifically, this suppression can even up to 15 dB in our design. For demonstration, a finite-size FSS utilizing a new miniaturized element is provided. A prototype of the FSS is created, modeled and tested. It reveals good consistency among models, full-wave simulation, and measured results.
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