Dual-Band Dielectric Resonator Reflectarray for C/X-Bands

Author

Alsath, M. Gulam Nabi ; Kanagasabai, Malathi ; Arunkumar, Shrivastav

Author_Institution

Dept. of Electron. & Commun. Eng., Anna Univ., Chennai, India

Volume

11

fYear

2012

fDate

7/4/1905 12:00:00 AM

Firstpage

1253

Lastpage

1256

Abstract

A dual-band reflectarray antenna composed of notched rectangular dielectric resonators (NR-DR) of variable height is introduced in this letter. A single unit cell is designed to operate for C-band and X-band. All the elements are effectively used for dual-band operation. The proposed reflectarray provides wider bandwidth for both bands (C/X bands) when compared to conventional microstrip-based reflectarray antennas. Furthermore, the notch creates some space that can be used to incorporate active elements, RF/MEMS switches to achieve reconfigurable characteristics.

Keywords

dielectric resonator antennas; multifrequency antennas; reflectarray antennas; C-band; NR-DR; RF-MEMS switches; X-band; active elements; dual-band dielectric resonator reflectarray antenna; microstrip-based reflectarray antennas; notched rectangular dielectric resonators; reconfigurable characteristics; variable height; Bandwidth; Dielectric resonator antennas; Dielectrics; Dual band; Gain; Reflector antennas; Resonant frequency; Reflectarray antennas; dielectric resonators; dual band; phased array antennas;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2012.2225593

Filename

6334413