Title :
CPW-fed slot antenna with wide radiating apertures
Author :
Ding, X. ; Jacob, A.F.
Author_Institution :
Inst. fur Hochfrequenztech., Tech. Univ. Braunschweig, Germany
fDate :
2/1/1998 12:00:00 AM
Abstract :
A new wide slot antenna with capacitively coupled CPW-feed and metallic strips in the apertures is presented. The numerical analysis is based on the Galerkin moment method in the spectral domain approach. A simplified formula to calculate the input impedance is proposed. Theoretical and experimental results demonstrate the significant performance improvement of this modified structure. The influence of various design parameters is investigated. A 50% impedance bandwidth (SWR<2.0) and cross-polarisation levels below -20 dB are demonstrated
Keywords :
Galerkin method; antenna feeds; capacitance; coplanar waveguides; electric impedance; electromagnetic wave polarisation; integral equations; method of moments; slot antennas; spectral-domain analysis; CPW-fed slot antenna; Galerkin moment method; SWR; capacitively coupled CPW-feed; coplanar waveguide; cross-polarisation levels; design parameters; experimental results; impedance bandwidth; input impedance; integral equation; metallic strips; numerical analysis; performance improvement; spectral domain approach; wide radiating apertures;
Journal_Title :
Microwaves, Antennas and Propagation, IEE Proceedings
DOI :
10.1049/ip-map:19981629
