Title :
Bandwidth enhancement of dielectric resonator antennas
Author :
Lee, R.Q. ; Simons, R.N.
Author_Institution :
NASA Lewis Res. Center, Cleveland, OH, USA
fDate :
June 28 1993-July 2 1993
Abstract :
An experimental investigation of bandwidth enhancement of dielectric resonator antennas (DRAs) using parasitic elements is reported. Substantial bandwidth enhancement for the HE/sub 11/spl delta// mode of the stacked geometry and for the HE/sub 13/spl delta// mode of the coplanar collinear geometry has been demonstrated. Excellent radiation patterns for the HE/sub 11/spl delta// mode were also recorded. Because of excellent return loss and radiation characteristics, the DRA should be excited in HE/sub 11/ mode when used as radiating elements in an array.<>
Keywords :
antenna radiation patterns; dielectric resonators; HE/sub 11/; bandwidth enhancement; coplanar collinear geometry; dielectric resonator antennas; parasitic elements; radiation patterns; stacked geometry; Apertures; Bandwidth; Coplanar waveguides; Dielectric loss measurement; Dielectric measurements; Dielectric resonator antennas; Dielectric substrates; Helium; Loss measurement; Microstrip antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1993. AP-S. Digest
Conference_Location :
Ann Arbor, MI, USA
Print_ISBN :
0-7803-1246-5
DOI :
10.1109/APS.1993.385479
