Circularly polarized low-profile square dielectric resonator antenna with a loading patch

With the loading of a rectangular patch having a suitable aspect ratio, circular polarization (CP) radiation of low profile square dielectric resonator (DR) antennas can easily be obtained. The proposed antenna design can easily be excited by using a microstrip-line feed, and many prototypes with various sizes of the loading rectangular patch have been implemented. Details of the antenna design are described, and experimental results of the obtained CP performance are presented. (C) 2001 John Wiley & Sons, Inc.