Title :
Bandwidth Enhancement of CPW-Fed Slot Antenna with Inset Tuning Stub
Author :
Jearapraditkul, P. ; Kueathaweekun, W. ; Anantrasirichai, N. ; Sangaroon, O. ; Wakabayashi, Tetsushi
Author_Institution :
King Mongkut´´s Inst. of Technol. Ladkrabang, Bangkok
Abstract :
The coplanar waveguide fed slot antenna with inset tuning stub is proposed for WLAN and WiMAX applications. This antenna consists of a rectangular patch element embedded with a tuning stub fed by CPW feed line. The antenna is designed for match impedance with 50 ohm of characteristic impedance of transmission line by using inset tuning stub for wideband matching. The simulation and measurement results show good agreement operation, which range of bandwidth can be achieved from 1.65 GHz - 6.35 GHz or 117%, suitable for applications to cover 2.4/5.2/5.8 GHz of WLAN bands and 2.5/3.5/5.5 GHz of WiMAX bands. The characteristics of antenna are proposed and analyzed for return loss, bandwidth, current distribution, voltage standing wave ratio and far field radiation patterns.
Keywords :
antenna feeds; antenna radiation patterns; coplanar waveguides; microstrip antennas; slot antennas; wireless LAN; CPW feed line; CPW-fed slot antenna; WLAN applications; WiMAX applications; bandwidth 1.65 GHz to 6.35 GHz; bandwidth enhancement; current distribution; far field radiation patterns; inset tuning stub; rectangular patch element; voltage standing wave ratio; Antenna feeds; Bandwidth; Broadband antennas; Coplanar transmission lines; Coplanar waveguides; Impedance; Slot antennas; Transmission line antennas; WiMAX; Wireless LAN;
Conference_Titel :
Communications and Information Technologies, 2008. ISCIT 2008. International Symposium on
Conference_Location :
Lao
Print_ISBN :
978-1-4244-2335-4
Electronic_ISBN :
978-1-4244-2336-1
DOI :
10.1109/ISCIT.2008.4700146
