Title :
Design of a coplanar bowtie antenna for WLAN and WiMAX application
Author :
Qing-Le Zhang ; Li-Ming Si ; Yu-Ming Wu ; Yong Liu ; Xin Lv
Author_Institution :
Dept. of Electron. Eng., Beijing Inst. of Technol., Beijing, China
Abstract :
A coplanar bow-tie antenna with triple-band operation for WLAN and WiMAX application is presented. The dual band-notched characteristic is realized by etching a U-shaped slot and a capacitively-loaded-loop (CLL)-shaped slot in the radiation patch. A triple band antenna, covering 2.24-2.70, 3.24-4.24, 4.84-6.00GHz, can be achieved through adjusting the positions and geometric parameters of the slots. A microstrip-to-CPS(coplanar striplines) transition with the overall dimensions of 70mm* 78.5mm* 0.8mm is used to feed the bowtie antenna as a wide band balun. The proposed triple-band bow-tie antenna consists of a SMA connector, a microstrip-to-CPS balun and radiation patch with U/CLL-shaped slots, simulated and optimized by using Ansys HFSS, a 3D full-wave finite element method solver. The results of the proposed antenna show good omnidirectional radiation patterns and more than 2.2 dB antenna gain, which are suitable for application in the WLAN/WiMAX systems.
Keywords :
UHF antennas; WiMax; baluns; bow-tie antennas; coplanar waveguides; microstrip antennas; planar antennas; strip lines; wireless LAN; 3D full wave finite element method solver; Ansys HFSS; SMA connector; U-shaped slot; WLAN application; WiMAX application; capacitively loaded loop shaped slot; coplanar bow-tie antenna; coplanar stripline; dual band notched characteristic; frequency 2.24 GHz to 27 GHz; frequency 3.24 GHz to 4.24 GHz; frequency 4.84 GHz to 6 GHz; microstrip-to-CPS transition; radiation patch; size 0.8 mm; size 70 mm; size 78.5 mm; triple band antenna; wideband balun; Microstrip; Microstrip antennas; Slot antennas; WiMAX; Wireless LAN; Bowtie antenna; WLAN; WiMAX; band-notched; triple-band;
Conference_Titel :
Antennas and Propagation (APCAP), 2014 3rd Asia-Pacific Conference on
Conference_Location :
Harbin
Print_ISBN :
978-1-4799-4355-5
DOI :
10.1109/APCAP.2014.6992475
