A new CPW-fed slot antenna for ultra-wide band application

Author

Ali, M. ; Hu, Y. ; Sayem, A.T.M. ; Usaha, R.

Author_Institution

Dept. of Electr. Eng., South Carolina Univ., Columbia, SC, USA

fYear

2005

fDate

2005

Abstract

A new design of a coplanar waveguide (CPW)-fed folded slot antenna is presented which is suitable for ultra-wide band application. Antenna impedance and bandwidth are studied as function of slot parameters, substrate dielectric constant, and substrate thickness. Wideband operation is achieved by designing an adjacent semicircular slot to a folded slot antenna. A prototype antenna was fabricated on RO4003 (ε_r = 3.38, substrate thickness = 7.5 mm) and measured for VSWR characteristics. The antenna can operate in the 4.1-7.7 GHz frequency range and has a bandwidth of 61% within 2:1 VSWR.

Keywords

antenna feeds; coplanar waveguides; slot antennas; ultra wideband antennas; 1.5 mm; 4.1 to 7.7 GHz; CPW-fed slot antenna; VSWR characteristics; adjacent semicircular slot; coplanar waveguide; folded slot antenna; prototype antenna; slot parameters; substrate dielectric constant; substrate thickness; ultra-wide band application; Antenna measurements; Bandwidth; Broadband antennas; Coplanar waveguides; Dielectric constant; Dielectric substrates; Impedance; Prototypes; Slot antennas; Ultra wideband antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless and Microwave Technology, 2005. WAMICON 2005. The 2005 IEEE Annual Conference

Print_ISBN

0-7803-8861-5

Type

conf

DOI

10.1109/WAMIC.2005.1528345

Filename

1528345