MULTI-SEGMENT CYLINDRICAL DIELECTRIC RESONATOR ANTENNA

A novel and simple design of a wideband multi-segment cylindrical DRA which is fed by a micro-strip line for broadband operation is proposed in this paper. The proposed structure has a bandwidth of 2GHz from 6.5 to 8.5 GHz which is 50% of the frequency range ranging from 6 to 10 GHz having resonant frequency at 7.408GHz. Reflection coefficient(S 11 ) at resonant frequency is - 66.01dB. Overall Gain is 5.44dB and radiation efficiency is -0.2825dB that is antenna is 93.70% efficient. Total height of proposed structure is 10mm. This low profile antenna is suitable for wireless systems like WLAN, WiMAX, C-Band applications. Simulation is done using CST MICROWAVE STUDIO-10. Details of the proposed antenna and simulated results are presented and discussed.

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