Title :
A novel CPW coupled patch antenna topology for dual band operation
Author :
Hettak, K. ; Delisle, G.Y. ; Stubbs, M.G.
Author_Institution :
Terrestrial Wireless Syst. Branch, Commun. Res. Centre, Ottawa, Ont., Canada
Abstract :
A novel dual band patch antenna in a single layer substrate is investigated. The antenna structure developed combines the advantages of the CPW (coplanar waveguide) with the advantages of the aperture-coupled microstrip antenna, and simplifies the structure of the antenna by reducing the number of metallization levels, from 3 to 2, thereby making easier the integration of the active devices. One of the most promising aspects of the new antenna consists in the capability of matching the input impedance at two frequencies with a single feed point. It is worth noting that the use of two separated frequencies allows for the relaxation of the bandwidth requirements for each frequency. Such an antenna provides dual band with the same polarizations.
Keywords :
coplanar waveguides; impedance matching; microstrip antennas; multifrequency antennas; CPW coupled patch antenna; CPW resonators; antenna polarization; aperture-coupled microstrip antenna; bandwidth requirements; coplanar waveguide; dual band operation; input impedance matching; metallization level reduction; single feed point; single layer substrate; Antenna feeds; Aperture antennas; Coplanar waveguides; Dual band; Frequency; Impedance matching; Metallization; Microstrip antennas; Patch antennas; Topology;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2003. IEEE
Conference_Location :
Columbus, OH, USA
Print_ISBN :
0-7803-7846-6
DOI :
10.1109/APS.2003.1220146
