Microfluidically Reconfigured Wideband Frequency-Tunable Liquid-Metal Monopole Antenna

被引：95

作者：

Dey, Abhishek ^{[1
]}

Guldiken, Rasim ^{[2
]}

Mumcu, Gokhan ^{[1
]}

机构：

[1] Univ S Florida, Dept Elect Engn, Ctr Wireless & Microwave Informat Syst WAMI, Tampa, FL 33620 USA

[2] Univ S Florida, Dept Mech Engn, Tampa, FL 33620 USA

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2016年 / 64卷 / 06期

基金：

美国国家科学基金会;

关键词：

Frequency reconfigurable antenna; liquid metal; microfluidics; monopole;

D O I：

10.1109/TAP.2016.2551358

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：

A microfluidically reconfigured wideband frequency-tunable liquid-metal monopole antenna is presented. The antenna operation relies on continuous moving of the liquid-metal volume over the capacitively coupled microstrip line feed network with a micropump unit. To maximize the capacitive coupling at the feed point, the antenna is realized by bonding microfluidic channel molds prepared in polydimethylsiloxane (PDMS) polymer with 1-mil-thick liquid crystal polymer (LCP) substrate. The concept is demonstrated through the design and experimentation of a 4:1 frequency-tunable monopole antenna that operates from 1.29 to 5.17 GHz. The presented monopole antenna can also be utilized as an element to form wideband frequency-tunable high-gain antenna apertures without necessitating any additional micropump units. This is accomplished by resorting to strategically meandered or interconnected microfluidic channels. This concept is demonstrated through the design and experimentation of a 4 x 1 microfluidically controlled monopole array capable of providing 2: 1 frequency tuning range from 2.5 to 5 GHz.

引用

页码：2572 / 2576

页数：6

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