A Frequency Reconfigurable Dielectric Resonator Antenna Using Colloidal Dispersions

Author

Huff, Gregory H. ; Rolando, David L. ; Walters, Phillip ; McDonald, Jacob

Author_Institution

Dept. of Electr. & Comput. Eng., Texas A&M Univ., College Station, TX, USA

Volume

9

fYear

2010

fDate

7/2/1905 12:00:00 AM

Firstpage

288

Lastpage

290

Abstract

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.

Keywords

adaptive antenna arrays; barium compounds; dielectric resonator antennas; disperse systems; microfluidics; DRA; aluminum ground plane; coaxial probe-fed structure; colloidal barium strontium titanate; colloidal dispersions; columnar fluidic colloidal dispersion; dispersion columnar height; frequency reconfigurable dielectric resonator antenna; hydrotreated naphthenic oil; polycarbonate tubing; tunable impedance property; vertical displacement; Adaptive antennas; colloidal dispersion; dielectric resonator antennas (DRAs); microfluidic; reconfigurable antennas;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2010.2046613

Filename

5438799