Compact CPW-fed printed monopole antenna with triple-band characteristics for WLAN/WiMAX applications

Author

Xu, Yan ; Jiao, Yong-Chang ; Luan, Y.-C.

Author_Institution

Nat. Key Lab. of Antennas & Microwave Technol., Xidian Univ., Xi´an, China

Volume

48

Issue

24

fYear

2012

Firstpage

1519

Lastpage

1520

Abstract

A novel triple-band CPW-fed antenna for WLAN and WiMAX applications is proposed, which can obtain impedance bandwidths of 2.34-2.50, 3.07-3.82, and 5.13-5.89-GHz with reflection coefficient less than -10-dB. The proposed antenna has a rectangular ring and an S-shaped strip attached to the feedline, with a crooked U-shaped strip and three straight strips on the bottom layer. The antenna has been successfully simulated, fabricated and measured. The measured results, which agree well with the simulated ones, show good impedance matching, nearly omnidirectional radiation patterns, and stable gains.

Keywords

UHF antennas; WiMax; antenna feeds; antenna radiation patterns; coplanar waveguides; impedance matching; microwave antennas; monopole antennas; wireless LAN; S-shaped strip; U-shaped strip; WLAN-WiMAX applications; bandwidth 2.34 GHz to 2.50 GHz; bandwidth 3.07 GHz to 3.82 GHz; bandwidth 5.13 GHz to 5.89 GHz; compact CPW-fed printed monopole antenna; feedline; impedance bandwidths; impedance matching; omnidirectional radiation patterns; rectangular ring; reflection coefficient; straight strips; triple-band characteristics;

fLanguage

English

Journal_Title

Electronics Letters

Publisher

iet

ISSN

0013-5194

Type

jour

DOI

10.1049/el.2012.3255

Filename

6400370