Microfluidically Switched Frequency-Reconfigurable Slot Antennas

被引：48
|
作者：
King, Aaron J. [1 ]
Patrick, Jason F. [2 ]
Sottos, Nancy R. [3 ]
White, Scott R. [4 ]
Huff, Gregory H. [5 ]
Bernhard, Jennifer T. [1 ]
机构：
[1] Univ Illinois, Dept Elect & Comp Engn, Urbana, IL 61801 USA
[2] Univ Illinois, Dept Civil Engn, Urbana, IL 61801 USA
[3] Univ Illinois, Dept Mat Sci & Engn, Urbana, IL 61801 USA
[4] Univ Illinois, Dept Aerosp Engn, Urbana, IL 61801 USA
[5] Texas A&M Univ, Dept Elect & Comp Engn, College Stn, TX 77840 USA
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2013年 / 12卷
关键词：
Frequency-reconfigurable; microfluidic switch; slot antenna; GALLIUM; ALLOY; LINE;
D O I：
10.1109/LAWP.2013.2270940
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This letter proposes a concept for frequency-reconfigurable slot antennas enabled by pressure-driven capacitive microfluidic switches. The switches are operated by pneumatically displacing a plug of eutectic gallium indium alloy (EGaIn) within an air-filled microchannel that traverses the slot orthogonally. Frequency reconfigurability is achieved by altering the displacement of conductive fluid within the channel, which reactively loads the slot. A transmission-line model is developed to capture the physical behavior of the fluid channel, and measurements are provided that show good agreement with the behavior of the model.
引用
收藏
页码：828 / 831
页数：4
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