Dual-Band Wi-Fi Antenna With a Ground Stub for Bandwidth Enhancement

Author

Jeong, Gye-Taek ; Kim, Woo-Su ; Kwak, Kyung-Sup

Author_Institution

Informaion & Commun. Eng., Inha Univ., Incheon, South Korea

Volume

11

fYear

2012

fDate

7/4/1905 12:00:00 AM

Firstpage

1036

Lastpage

1039

Abstract

Design of a compact modified inverted-L antenna with a ground stub is proposed for Wi-Fi applications. With the ground stub structure, the impedance bandwidth for 2.45-GHz band enhances from 13.1% to 15.7%, and the impedance bandwidth for 5.2/5.8-GHz bands improves from 10.1% to 19.9%. The performances of the antenna with optimized parameters are characterized in terms of reflection coefficient, gain, and radiation pattern measurements in an anechoic chamber. The measured result satisfies Wi-Fi frequency specifications.

Keywords

anechoic chambers (electromagnetic); antenna radiation patterns; bandwidth allocation; multifrequency antennas; planar inverted-F antennas; wireless LAN; Wi-Fi applications; Wi-Fi frequency specifications; anechoic chamber; bandwidth enhancement; compact modified inverted-L antenna; dual-band Wi-Fi antenna; frequency 2.45 GHz; gain; ground stub structure; impedance bandwidth; radiation pattern measurements; reflection coefficient; Antenna measurements; Antennas; Bandwidth; IEEE 802.11 Standards; Impedance; Wireless communication; Bandwidth enhancement; Wi-Fi applications; dual-band antenna; ground stub;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2012.2214755

Filename

6280611