A Frequency Reconfigurable Dielectric Resonator Antenna Using Colloidal Dispersions

被引：48
|
作者：
Huff, Gregory H. [1 ]
Rolando, David L. [1 ]
Walters, Phillip [1 ]
McDonald, Jacob [1 ]
机构：
[1] Texas A&M Univ, Dept Elect & Comp Engn, Electromagnet & Microwave Lab, College Stn, TX 77843 USA
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2010年 / 9卷
基金：
美国国家科学基金会;
关键词：
Adaptive antennas; colloidal dispersion; dielectric resonator antennas (DRAs); microfluidic; reconfigurable antennas;
D O I：
10.1109/LAWP.2010.2046613
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：
The vertical displacement of a columnar fluidic colloidal dispersion is examined as a frequency reconfigurable dielectric resonator antenna (DRA). The coaxial probe-fed structure has tunable impedance properties that are reversibly controlled by adjusting the columnar height of the dispersion. Colloidal barium strontium titanate was dispersed in hydrotreated naphthenic oil and placed at several heights into a section of polycarbonate tubing over an aluminum ground plane to demonstrate the impedance properties of this structure. Measured, simulated, and calculated results for a range of heights that corresponded to single-mode operation are provided for a design operating between 2.5 and 4.5 GHz.
引用
收藏
页码：288 / 290
页数：3
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