Liquid-metal capacitors with a 42:1 tuning ratio

被引：8

作者：

Rahman, M. A. ^{[1
]}

Shiroma, W. A. ^{[1
]}

Ohta, A. T. ^{[1
]}

机构：

[1] Univ Hawaii, Dept Elect Engn, Honolulu, HI 96822 USA

来源：

ELECTRONICS LETTERS | 2017年 / 53卷 / 11期

基金：

美国国家科学基金会;

关键词：

Metals;

D O I：

10.1049/el.2017.0635

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：

Four types of liquid-metal-based tunable capacitors with a high tuning range are demonstrated. The capacitors are easily fabricated by placing a pair of liquid-metal-filled tubes in contact with one another. Tunability is achieved by varying the length of the liquid metal in one of the tubes using a mechanical pump. Four different structures are demonstrated: parallel-tube, folded-tube, coil, and spiral capacitors. The highest measured tuning ratio is 42:1, and the highest change in capacitance per unit length of the pumped liquid metal is 0.07 pF/mm.

引用

页码：711 / 712

页数：2

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