Gallium-Based Liquid Metal Substrate Integrated Waveguide Switches
Gallium-Based Liquid Metal Substrate Integrated Waveguide Switches
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DOI：
10.1109/lmwc.2020.3040795
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发表时间：
2021-03-01
影响因子：
3
通讯作者：
Wang, Yi
中科院分区：
文献类型：
--
作者：
Alkaraki, Shaker;Kelly, James;Wang, Yi
本文提出了一种基片集成波导器件重构的新方法。它涉及到允许或禁止波的传播，通过使用一个可移动的墙，这是建立了一系列的钻孔。当需要壁时，用镓基液态金属（LM）填充孔，从而形成通孔。当不再需要壁时，孔中的LM被清空。该方法已被应用到单刀单掷（SPST）SIW开关以及单刀双掷（SPDT）开关。这两种开关在接近一个倍频程的宽频率带宽上表现良好。SPST开关在2.4 ~ 4.3GHz范围内性能良好。在ON状态（即，壁移除），插入损耗（IL）为
This letter presents a new approach for reconfiguring substrate integrated waveguide (SIW) devices. It involves allowing or prohibiting the wave propagation by using a removable wall which is built from a series of drill holes. When the wall is required, the holes are filled with gallium-based liquid metal (LM), thus forming vias. When the wall is no longer required, the holes are emptied of LM. The method has been applied to a single-pole single-throw (SPST) SIW switch as well as a single-pole double-throw (SPDT) switch. Both switches perform well over a wide frequency bandwidth, approaching one octave. The SPST switch performs well from 2.4 to 4.3 GHz. In the ON-state (i.e., wall removed), the insertion loss (IL) is