Integrated Actuation of Microfluidically Reconfigurable mm-Wave SPST Switches
Integrated Actuation of Microfluidically Reconfigurable mm-Wave SPST Switches
复制标题
微流体可重构毫米波 SPST 开关的集成驱动
DOI：
10.1109/lmwc.2019.2925889
复制
发表时间：
2019
影响因子：
3
通讯作者：
G. Mumcu
中科院分区：
文献类型：
--
作者：
E. González;G. Mumcu
这篇文章演示了单刀单掷（SPST）微流体可重构开关的设计和性能。该开关是通过将微流体通道放置在微带线间隙不连续性上而形成的。位于微流体通道内的选择性金属化板随着流体流动而重新定位，以电容性地加载中断，从而实现RF切换功能。与现有的基于外部微泵的工作不同，SPST开关与压电致动器集成在一起。优化开关布局以获得低致动时间。开关原型的特点是表现出低插入损耗（0.42 dB），在30 GHz和宽带宽（18 GHz）。它的工作上升和下降时间低至1.12 ms。它是由三百万开关周期没有性能下降。据我们所知，所提出的开关具有最低的重构时间，最高的操作频率，和最高的可靠性之间的微流体可重构器件在最近的文献报道。
This article demonstrates the design and performance of a single-pole single-throw (SPST) microfluidically reconfigurable switch. The switch is formed by placing a microfluidic channel over a microstrip line gap discontinuity. A selectively metallized plate located inside the microfluidic channel is repositioned with fluid flow to capacitively load the discontinuity to achieve the RF switching functionality. Different from prior works based on external micropumps, the SPST switch is integrated with a piezoelectric actuator. The switch layout is optimized to obtain a low actuation time. A switch prototype is characterized to exhibit low insertion loss (0.42 dB) at 30 GHz and wide bandwidth (18 GHz). It operates with rise and fall times down to 1.12 ms. It is actuated by three million switching cycles with no performance degradation. To the best of our knowledge, the presented switch exhibits the lowest reconfiguration time, highest operation frequency, and the highest reliability among the microfluidically reconfigurable devices reported in recent literature.