Title :
A CPW- fed octagon shaped antenna for 5GHz WLAN and Higher band UWB applications
Author :
Gunavathi, N. ; Raghavan, S.
Author_Institution :
Dept. of Electron. & Commun. Eng., Nat. Inst. of Technol., Tiruchirappalli, India
Abstract :
A compact, CPW- fed octagon shaped antenna for 5GHz and Higher band UWB applications is presented. The antenna consists of ground plane and an octagon-shaped exciting stub. The octagon - shaped stub is simple and has less parameter, which are convenient to optimize. The proposed antenna is designed on an inexpensive FR4-epoxy substrate with dielectric constant εr = 4.4 and with a size 30mm×24.4mm×1.5mm. The presented antenna has an impedance bandwidth from 4.5GHz-11.2GHz (VSWR<;;2), maximum gain 3.9dBi and directivity from 2.5dBi to 6.0dBi. By controlling dielectric constant (Substrate), dimension of patch, and thickness of the conductor strip, we can realize the antenna for different band of impedance matching.
Keywords :
coplanar waveguides; impedance matching; microwave antennas; permittivity; ultra wideband antennas; waveguide antennas; wireless LAN; CPW-fed octagon shaped antenna; FR4-epoxy substrate; WLAN; dielectric constant; frequency 4.5 GHz to 11.2 GHz; frequency 5 GHz; ground plane; higher band UWB applications; impedance matching; octagon-shaped exciting stub; size 1.5 mm; size 24.4 mm; size 30 mm; Antenna radiation patterns; Coplanar waveguides; Impedance; Impedance matching; Ultra wideband antennas; Wireless LAN; 5GHz WLAN; CPW fed; High band UWB; Octagon shape;
Conference_Titel :
Computing Communication and Networking Technologies (ICCCNT), 2010 International Conference on
Conference_Location :
Karur
Print_ISBN :
978-1-4244-6591-0
DOI :
10.1109/ICCCNT.2010.5591853
