Bandwidth broadening of dielectric resonator antenna by merging adjacent bands
Journal
IEEE Transactions on Antennas and Propagation
Journal Volume
57
Journal Issue
10
Pages
3316-3320
Date Issued
2009-10
Author(s)
Abstract
A broadband dielectric resonator (DR) antenna is designed by merging its three resonant bands. An asymmetrical moat carved off the DR is designed to perturb the electric field distribution within the DR so that the Q factor of the DR is reduced, and the radiation pattern on the E -plane can be modified to increase the gain in the broadside direction. The mode mixing effect on the radiation patterns is also studied. A wide impedance bandwidth of 33%(4.89-6.86 GHz) is obtained with broadside radiation pattern of vertical polarization on the horizontal plane. This DR antenna can be used for WLAN 802.11a (5.15-5.85 GHz) applications.
SDGs
Type
journal article