Bandwidth reconfigurable THz filter employing phase-change material

Bandwidth reconfigurable THz filter employing phase-change material
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采用相变材料的带宽可重构太赫兹滤波器

DOI:
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发表时间:
2015
期刊:
2015 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting
影响因子:
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通讯作者:
J. Volakis
J. Volakis
中科院分区:
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文献类型:
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作者:
V. Sanphuang;N. Ghalichechian;N. Nahar;J. Volakis

文献摘要

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我们提出了一种基于频率选择表面(FSS)和相变材料(PCM)、二氧化钒(VO2)相结合的带宽可重构空间滤波器,用于先进的太赫兹(THz)应用。FSS滤波器以蓝宝石为衬底进行了模拟,采用了中间带有VO2环的圆形FSS环路。仿真结果表明,该滤波器在0.4-0.75 THz频率范围内具有较高的带宽差。作为演示,我们测试了一个可重新配置的FSS几何结构,并根据设计观察到带宽变化了15%。
We propose a bandwidth reconfigurable spatial filter using frequency selective surfaces (FSS) combined with phase-change materials (PCMs), vanadium dioxide (VO2) for advanced terahertz (THz) applications. The FSS filter is simulated using sapphire as substrate and employs circular loops FSS with VO2 rings in between. Simulations of this filter show bandwidth difference in the frequency range of 0.4 - 0.75 THz. As a demonstration, we tested a reconfigurable FSS geometry and observed a 15% in bandwidth change as per design.