Compact Triband Patch Antenna With Large Scale of Frequency Ratio Using CRLH-TL Structures

Author

Wang, Chen ; Hu, Bin-Jie ; Zhang, Xiu-Yin

Author_Institution

Sch. of Electron. & Inf. Eng., South China Univ. of Technol., Guangzhou, China

Volume

9

fYear

2010

fDate

7/2/1905 12:00:00 AM

Firstpage

744

Lastpage

747

Abstract

This letter presents a novel compact triband patch antenna filled with composite right/left-handed transmission line (CRLH-TL) structures. The CRLH-TL structures enhance left-handed (LH) characteristics and lower the operating frequency, which enable size reduction and large scale of frequency ratio from 1.5 up to 4. The upper two operating frequencies are realized by the outer patch of the proposed antenna, and the lowest operating frequency is controlled by CRLH-TL structures. The large scale of frequency ratio can be arbitrarily chosen by adjusting the dimensions of the patch and CRLH-TL structures.

Keywords

microstrip antennas; microstrip lines; multifrequency antennas; transmission lines; CRLH-TL structures; compact triband patch antenna; composite right transmission line structures; large scale frequency ratio; left-handed transmission line structures; microstrip antennas; operating frequency; Capacitance; Metals; Microwave theory and techniques; Patch antennas; Resonant frequency; Substrates; Composite right/left-handed transmission line (CRLH-TL); frequency ratio; microstrip antennas; triband antennas;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2010.2060711

Filename

5523880