Vol. 67

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2016-09-15

A Novel Compact Fractal Ring Based Cylindrical Dielectric Resonator Antenna for Ultra Wideband Application

By Dileep Sankaranarayanan, Duggirala Venkatakiran, and Biswajeet Mukherjee
Progress In Electromagnetics Research C, Vol. 67, 71-83, 2016
doi:10.2528/PIERC16062007

Abstract

This paper presents a novel compact Koch snowflake fractal ring based Dielectric Resonator Antenna (DRA) for ultra wideband application. Firstly, Koch snowflake fractal geometry is implemented on the conventional Cylindrical Dielectric Resonator Antenna (CDRA). Further, the performance of the DRA is enhanced by fractal ring created on the snowflake geometry. With the application of the fractal and the fractal ring geometry, the Q-factor of DRA is reduced, thus the bandwidth of DRA is increased. The proposed antenna offers a wide impedance bandwidth of 90% ranging from 4.7 GHz-12.4 GHz. The effect of the fractal geometry enhances the gain of DRA. The proposed antenna achieves radiation efficiency more than 78%, throughout the bandwidth. Interestingly, the proposed configuration reduces the DRA volume by 76.63% with reduced volume of 7.91 cm3. The experimental verification of the proposed structure shows good agreement between simulated and measured results.

Citation


Dileep Sankaranarayanan, Duggirala Venkatakiran, and Biswajeet Mukherjee, "A Novel Compact Fractal Ring Based Cylindrical Dielectric Resonator Antenna for Ultra Wideband Application," Progress In Electromagnetics Research C, Vol. 67, 71-83, 2016.
doi:10.2528/PIERC16062007
http://jpier.org/PIERC/pier.php?paper=16062007

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