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

fYear

2008

Firstpage

14

Lastpage

17

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ISCIT.2008.4700146

Filename

4700146