Title :
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
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 (εr = 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;
Conference_Titel :
Wireless and Microwave Technology, 2005. WAMICON 2005. The 2005 IEEE Annual Conference
Print_ISBN :
0-7803-8861-5
DOI :
10.1109/WAMIC.2005.1528345
