The CPW feed to the Dielectric Resonator Antenna (DRA) has attracted considerable attention in view of the low loss, low dispersion and uniplanar nature of the CPW line compared to the microstrip feed [1]-[4]. Also, the CPW feed is easily amenable to active device integration without the need of vias. In view of the above, this paper illustrates three different configurations of CPW fed DRAs. In the first, the role of Electromagnetic Band-Gap (EBG) structures in the CPW ground plane and in the lower layer of the CPW substrate in increasing the F/B ratio and back-radiation performance is examined. Secondly, a circular polarized DRA is realized using a single coupled folded slot CPW feed. The third design illustrates the performance of CPW fed broadband Multisegment Dielectric Resonator Antenna (MSDRA). The advantages of the CPW feed over the microstrip feed to the MSDRA enhance the versatility and applicability of this antenna. Currently, simulated data on the above geometries using Ansoft's HFSS are presented. Fabrication and measurements of the above geometries are being conducted to verify the simulated results.
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