Bandwidth reconfigurable THz filter employing phase-change material
Bandwidth reconfigurable THz filter employing phase-change material
复制标题
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:
影响因子:
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通讯作者:
J. Volakis
中科院分区:
文献类型:
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作者:
V. Sanphuang;N. Ghalichechian;N. Nahar;J. Volakis
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.