Title :
Low-Profile Impedance Matched Wideband Double Inverted-F Antenna for WiMAX/Wi-Fi Operations in a Laptop Computer
Author :
Karmokar, Debabrata Kumar ; Hossain, Md Selim ; Mollah, Md Nurunnabi
Author_Institution :
Dept. of Electr. & Electron. Eng., Khulna Univ. of Eng. & Technol., Khulna, Bangladesh
Abstract :
In this paper a wire type low-profile impedance matched wideband double inverted-F (DIFA) antenna for WiMAX/Wi-Fi operations in a laptop computer is presented by means of numerical simulations. The antenna has a compact size of 9×20 mm2 and provides a wider bandwidth of 2.5 GHz (5050~7550 MHz) which fully covers the 5.5 GHz operating band. Moreover it has very high peak gain of 7.0 dBi with less than 1.5 dBi gain variation within the 5.5 GHz operating band. In application of matching network, the input impedance of the antenna well matched to the antenna feeding, also improvement in return loss and voltage standing wave ratio (VSWR) is achieved. In addition the antenna has good return loss and radiation characteristics.
Keywords :
WiMax; antenna radiation patterns; broadband antennas; impedance matching; laptop computers; numerical analysis; wireless LAN; WiMAX-WiFi operations; antenna feeding; antenna radiation characteristics; bandwidth 2.5 GHz; bandwidth 5050 MHz to 7550 MHz; double inverted-F antenna; frequency 5.5 GHz; laptop computer; matching network; numerical simulations; return loss; voltage standing wave ratio; wire type low-profile impedance matched wideband antenna; Broadband antennas; Dipole antennas; Manganese; Portable computers; WiMAX; Wireless LAN;
Conference_Titel :
Devices and Communications (ICDeCom), 2011 International Conference on
Conference_Location :
Mesra
Print_ISBN :
978-1-4244-9189-6
DOI :
10.1109/ICDECOM.2011.5738510
