A Compact CPW-fed Planar Ultra-wideband Antenna with a Frequency Notch Characteristic

Author

Chu, Qing-Xin ; Yang, Ying-Ying

Author_Institution

Sch. of Electron. & Inf. Eng., South China Univ. of Technol., Guangzhou

fYear

2007

fDate

11-14 Dec. 2007

Firstpage

1

Lastpage

4

Abstract

A compact and simple design of a CPW-fed planar antenna for ultra-wideband application with a band-notch characteristic is presented. The proposed antenna consists of a rectangular metal patch on a printed circuit board fed by a 50-Omega coplanar waveguide (CPW). By cutting a C-shaped slot in the rectangular radiating patch, a frequency band notch will be created. The proposed antenna yields an impedance bandwidth of 3.1-10.6 GHz with VSWR<2, except the bandwidth of 5-6 GHz for WLAN. The bandwidth and central frequency of the notched band can be adjusted with ease by proper selection of C-shaped slot parameters simulated by the electromagnetic software Ansoft HFSS 10. The antenna is successfully simulated, designed, and measured showing broadband matched impedance, stable gain and radiation patterns.

Keywords

antenna feeds; antenna radiation patterns; coplanar waveguides; printed circuits; slot antennas; ultra wideband antennas; wireless LAN; C-shaped slot parameters; WLAN; bandnotch characteristics; bandwidth 3.1 GHz to 10.6 GHz; bandwidth 5 GHz to 6 GHz; compact CPW-fed planar ultrawideband antenna; electromagnetic software Ansoft HFSS 10; frequency notch characteristic; impedance bandwidth; printed circuit board; rectangular metal patch; rectangular radiating patch; Bandwidth; Broadband antennas; Coplanar waveguides; Electromagnetic waveguides; Frequency; Impedance; Planar arrays; Printed circuits; Ultra wideband antennas; Ultra wideband technology; C-shaped slot; band-notch characteristics; coplanar waveguide (CPW) fed antennas; ultra-wideband (UWB) antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2007. APMC 2007. Asia-Pacific

Conference_Location

Bangkok

Print_ISBN

978-1-4244-0748-4

Electronic_ISBN

978-1-4244-0749-1

Type

conf

DOI

10.1109/APMC.2007.4554991

Filename

4554991