Multi-Band Cylindrical Dielectric Resonator Antenna for Wireless Applications

This work illustrates an improved and well-designed dielectric resonator antenna that provides multiple frequency bands for wireless/ITS applications. The proposed antenna consists of an 1×2 even power splitter with a modified slotted ground made up of a star rectangular slot with an inner slotted ring and an outer partially slotted ring to excite a HEM mode inside the dual resonating CDRA’s. Four circular slots at the corners have been used to enhance the reflection coefficient. The proposed antenna operates at 2.62 GHz, 4.465 GHz, 6 GHz and 8.25 GHz and can achieve a peak gain of 3.66 dB with a maximum efficiency of 85 %.