Triple-Band Microstrip-Fed Monopole Antenna Loaded With CRLH Unit Cell

Author

Ibrahim, Amr A. ; Safwat, Amr M E ; El-Hennawy, Hadia

Author_Institution

Electron. & Commun. Eng. Dept., Ain Shams Univ., Cairo, Egypt

Volume

10

fYear

2011

fDate

7/3/1905 12:00:00 AM

Firstpage

1547

Lastpage

1550

Abstract

This letter presents a novel metamaterial-inspired planar monopole antenna. The proposed structure consists of a monopole loaded with a composite right/left-handed (CRLH) unit cell. It operates at two narrow bands, 0.925 and 1.227 GHz, and one wide band, 1.56-2.7 GHz, i.e., it covers several communication standards. The CRLH-loaded monopole occupies the same Chu´s sphere as a conventional monopole that operates at 2.4 GHz. The radiation patterns at the different operating frequencies are still quasi-omnidirectional. Measurements and EM simulations are in a good agreement with the theoretical predictions.

Keywords

UHF antennas; antenna radiation patterns; metamaterials; microstrip antennas; monopole antennas; multifrequency antennas; planar antennas; Chu sphere; composite right/left-handed unit cell; frequency 0.925 GHz; frequency 1.227 GHz; frequency 1.56 GHz to 2.7 GHz; planar monopole antenna; quasi-omnidirectionalerns; radiation patterns; triple-band microstrip-fed monopole antenna; Antenna radiation patterns; Loaded antennas; Metamaterials; Microstrip antennas; Mobile handsets; Composite right/left-handed (CRLH) unit cell; planar monopole;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2011.2181813

Filename

6112656