Dual band two elements inverted-L antenna for 2.3 GHz mobile WiMAX and 5.5 GHz Wi-Fi operations

Author

Morshed, Khaled Mahbub ; Karmokar, Debabrata Kumar ; Rahman, Md Mostafizur

Author_Institution

Electron. & Commun. Eng., Khulna Univ. of Eng. & Technol., Khulna, Bangladesh

fYear

2011

fDate

22-24 Dec. 2011

Firstpage

223

Lastpage

228

Abstract

A high gain two elements inverted-L antenna (ILA) capable of generating two bands for 2.3 GHz mobile worldwide interoperability for microwave access (mobile WiMAX) and 5.5 GHz wireless-fidelity (Wi-Fi) operation is presented in this research. Geometry parameters of the antenna are optimized for 50 Ω antenna input impedance using method of moments (MoM´s) in super-numerical electromagnetic code (super-NEC). The antenna occupies a small area of 60×80 mm² on a portable circuit board (PCB) and has 10-dB return loss bandwidth (BW) of 250 MHz (2180-2430 MHz) for 2.3 GHz (mobile WiMAX) band and 310 MHz (5320-5630 MHz) for 5.5 GHz (Wi-Fi) band making it easily cover the required bandwidths for mentioned applications. The simulated and measured return loss, radiation patterns, voltage standing wave ratio (VSWR) of the antenna shows good agreement and simulated radiation efficiency indicates the suitability of the antenna for the mobile WiMAX and Wi-Fi operation. The peak antenna gains of 4.75 dBi at 2.3 GHz and 8.65 dBi at 5.5 GHz are measured.

Keywords

WiMax; antenna radiation patterns; method of moments; microwave antennas; wireless LAN; BW; ILA; MoM; PCB; VSWR; Wi-Fi operations; bandwidth 2180 MHz to 2430 MHz; bandwidth 250 MHz; bandwidth 310 MHz; bandwidth 5320 MHz to 5630 MHz; dual band two elements inverted-L antenna; frequency 2.3 GHz; frequency 5.5 GHz; geometry parameters; high gain two elements; loss 10 dB; method of moments; microwave access; mobile WiMAX; mobile worldwide interoperability; portable circuit board; radiation patterns; return loss bandwidth; simulated radiation efficiency; super-NEC; super-numerical electromagnetic code; voltage standing wave ratio; wireless-fidelity operation; Feeds; IEEE 802.11 Standards; Mobile communication; WiMAX; Wireless LAN; ILA; Mobile WiMAX; Wi-Fi; Wireless Local Area Network (WLAN);

fLanguage

English

Publisher

ieee

Conference_Titel

Computer and Information Technology (ICCIT), 2011 14th International Conference on

Conference_Location

Dhaka

Print_ISBN

978-1-61284-907-2

Type

conf

DOI

10.1109/ICCITechn.2011.6164788

Filename

6164788