Single-mode-dual-band to dual-mode-single-band bandpass filter with liquid metal
Single-mode-dual-band to dual-mode-single-band bandpass filter with liquid metal
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DOI：
10.1109/wamicon.2017.7930270
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发表时间：
2017-04
期刊：
影响因子：
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通讯作者：
Sarah N. McClung;S. Saeedi;H. Sigmarsson
中科院分区：
文献类型：
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作者：
Sarah N. McClung;S. Saeedi;H. Sigmarsson
提出了一种模式可重构的巴特沃思带通滤波器，它可以在单模双通带（SMDB）和双模单通带（DMSB）滤波器之间切换。该滤波器是使用正方体几何形状的基板集成波导来实现的。开关是通过使用空过孔的SMDB和液态金属填充过孔的DMSB。SMDB的前两个模式谐振间隔为3 GHz，而DMSB的前两个模式是简并的，仅在较高的频率下谐振。这是由于第一频带到第二频带的模式移位。测量证实了两种操作模式之间的液态金属重构。
A mode-reconfigurable Butterworth bandpass filter, which can be switched between operating as a single-mode-dual-band (SMDB) and a dual-mode-single-band (DMSB) filter is presented. The filter is realized using a substrate integrated waveguide in a square cuboid geometry. Switching is enabled by using empty vias for the SMDB and liquid metal filled vias for the DMSB. The first two modes of the SMDB resonate 3 GHz apart, whereas the first two modes of the DMSB are degenerate and resonate only at the higher frequency. This is due to mode shifting of the first frequency band to the second frequency band. Measurements confirm the liquid-metal reconfiguration between the two operating modes.