Fractal monopole antenna for WLAN USB dongle

Author

Luo, Qi ; Pereira, J.R. ; Salgado, H.M.

Author_Institution

Fac. de Eng., Univ. do Porto, Porto, Portugal

fYear

2009

fDate

16-17 Nov. 2009

Firstpage

245

Lastpage

247

Abstract

This article presents the design and fabrication of a simple printed fractal monopole antenna for WLAN USB dongle applications. The proposed antenna uses the combination of meander line and fractal geometry, which is very simple and easy to fabricate, to achieve a multiband operation characteristic. The parameters of this antenna were optimized through numerical simulations in Ansoft HFSS, after which the antenna has been fabricated and characterized. The measurement results show that the proposed antenna has a -10 dB return loss bandwidth of 2.22 to 2.52 GHz and 5.03 to 5.84 GHz, which covers the entire required band for WLAN 802.11a/b/g standards. Moreover, from the simulation results, it is also observed that this proposed antenna exhibits constant gain of 1.8 dBi with 95% radiation efficiency in the lower band and 2.4 dBi with 94% radiation efficiency in the upper band, respectively.

Keywords

UHF antennas; fractal antennas; microstrip antennas; microwave antennas; monopole antennas; peripheral interfaces; wireless LAN; Ansoft HFSS; WLAN USB dongle; fractal geometry; frequency 2.22 GHz to 2.52 GHz; frequency 5.03 GHz to 5.84 GHz; loss -10 dB; meander line; multiband operation characteristic; printed fractal monopole antenna; radiation efficiency; return loss bandwidth; Antenna measurements; Bandwidth; Fabrication; Fractals; Geometry; Loss measurement; Measurement standards; Numerical simulation; Universal Serial Bus; Wireless LAN;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas & Propagation Conference, 2009. LAPC 2009. Loughborough

Conference_Location

Loughborough

Print_ISBN

978-1-4244-2720-8

Electronic_ISBN

978-1-4244-2721-5

Type

conf

DOI

10.1109/LAPC.2009.5352377

Filename

5352377