A novel miniature multi-frequency broadband patch antenna for WLAN applications

Author

Jayasinghe, Jeevani W. ; Uduwawala, Disala N.

Author_Institution

Fac. of Eng., Univ. of Peradeniya, Peradeniya, Sri Lanka

fYear

2013

fDate

17-20 Dec. 2013

Firstpage

361

Lastpage

363

Abstract

Miniature antennas with multi frequency and broadband features have a high demand in the field of wireless communications. This paper proposes such a patch antenna for WLAN applications in UNII-1, UNII-2, UNII-2 extended and UNII-3 bands. The specialty of the antenna is its compact size with a foot print of only 8 mm × 4 mm. The patch with a shorting pin is etched on a substrate with a dielectric constant of 3.2 and a thickness of 0.762 mm and is suspended in air 5 mm above a ground plane. The patch geometry, feed point and shorting pin positions are optimized using genetic algorithms. The designed antenna displays a -10 dB fractional impedance bandwidth of 12.6% and is suitable for handheld devices.

Keywords

antenna feeds; broadband antennas; etching; genetic algorithms; geometry; microstrip antennas; microwave antennas; multifrequency antennas; wireless LAN; UNII-1 band; UNII-2 band; UNII-2 extended band; UNII-3 band; WLAN application; antenna feed point; dielectric constant; distance 5 mm; fractional impedance bandwidth; frequency 5150 MHz to 5250 MHz; frequency 5250 MHz to 5350 MHz; frequency 5470 MHz to 5725 MHz; frequency 5725 MHz to 5825 MHz; gain -10 dB; genetic algorithm; handheld device; miniature multifrequency broadband patch antenna; patch geometry; shorting pin etching; size 0.762 mm; unlicensed national information infrastructure band; wireless communication; Broadband antennas; Broadband communication; Patch antennas; Substrates; Wireless LAN; Broadband patch antenna; Fractional bandwidth; Genetic algorithm optimization; WLAN;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial and Information Systems (ICIIS), 2013 8th IEEE International Conference on

Conference_Location

Peradeniya

Print_ISBN

978-1-4799-0908-7

Type

conf

DOI

10.1109/ICIInfS.2013.6732010

Filename

6732010