A novel CPW-FED circular square-corner fractal antenna with varying notch-band for UWB applications

Author

Sawant, Kailas Kantilal ; Kumar, Ravindra ; Gaikwad, Arun N.

Author_Institution

EE Dept., MMW & Antenna Lab., Pune, India

fYear

2012

fDate

19-20 Oct. 2012

Firstpage

1

Lastpage

6

Abstract

The design of this paper represents the novel cpw-fed circular square corner fractal antenna with varying notch-band frequency characteristics. The position and width of the notch-band can be adjusted in the entire operating band. A prototype of the antenna has been designed on FR4-Epoxy substrate dielectric constant 4.4 and thickness h=1.53 mm with a N-shape slot in coplanar waveguide feed of length L = 7.4 mm and slot width W = 2.8 mm. The experimental result of this antenna exhibits ultra wide band characteristics from frequency 3.1 GHz to 15.0 GHz. The notch in operating band helps to reduce the interference with the frequency bands of Wireless Local Area Network (WLAN). The simulated and experimental return losses are found in good agreement. The experimental radiation of this antenna in azimuth plane is nearly omni-directional. This proposed cpw-fed circular square corner fractal antenna with varying notch-band frequency characteristics can thus be used for Ultra wide band (UWB) system, microwave imaging, precision position system, and radar tracking system.

Keywords

antenna feeds; antenna radiation patterns; coplanar waveguides; fractal antennas; microwave antennas; ultra wideband antennas; CPW-fed circular square-corner fractal antenna; FR4-epoxy substrate dielectric constant; N-shape slot in coplanar waveguide; UWB applications; WLAN; azimuth plane; frequency 3.1 GHz to 15.0 GHz; microwave imaging; precision position system; radar tracking system; size 1.53 mm; size 2.88 mm; size 7.4 mm; ultrawide band system; varying notch-band frequency characteristics; wireless local area network; Bandwidth; Feeds; Fractal antennas; Resonant frequency; Substrates; Ultra wideband antennas; Multiband; Resonant frequency; fractal Antenna; notch band and CPW-fed;

fLanguage

English

Publisher

ieee

Conference_Titel

Communication, Information & Computing Technology (ICCICT), 2012 International Conference on

Conference_Location

Mumbai

Print_ISBN

978-1-4577-2077-2

Type

conf

DOI

10.1109/ICCICT.2012.6398126

Filename

6398126