Dual-band flat-plate antenna with a shorted parasitic element for laptop applications

Author

Wong, Kin-Lu ; Chou, Liang-Che ; Su, Chih-Ming

Author_Institution

Dept. of Electr. Eng., Nat. Sun Yat-Sen Univ., Taiwan

Volume

53

Issue

1

fYear

2005

Firstpage

539

Lastpage

544

Abstract

A novel dual-band flat-plate antenna with a shorted parasitic element for an internal laptop antenna for WLAN operation is presented. The proposed antenna is suitable to be integrated with the supporting metal frame for the display of the laptop and shows a low profile of 5 mm above the metal frame, thus making it easily embedded within the casing of the laptop as an internal antenna. Moreover, the proposed antenna can provide two separate impedance bandwidths of 190 MHz (about 8% centered at 2.4 GHz) and 2140 MHz (about 39% centered at 5.5 GHz), making it easily cover the required bandwidths for WLAN operation in the 2.4 GHz band (about 3.4% bandwidth required) and 5.2/5.8 GHz bands (about 13% bandwidth required). The proposed antenna is studied in detail in this study, and experimental and simulation results are presented.

Keywords

antenna radiation patterns; laptop computers; microstrip antennas; multifrequency antennas; wireless LAN; 190 MHz; 2.4 GHz; 2140 MHz; WLAN operation; dual-band flat-plate antenna; laptop antennas; laptop application; shorted parasitic element; wireless local area networks; Antennas and propagation; Application software; Bandwidth; Computer displays; Dual band; Embedded computing; Fabrication; Impedance; Portable computers; Wireless LAN;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2004.838754

Filename

1377633