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2010-08-16

Wideband Rectangular Dielectric Resonator Antenna (DRA) with Slot-Fed Design

By Zi-Bin Weng, Xiao-Ming Wang, Yong-Chang Jiao, and Fu-Shun Zhang
Progress In Electromagnetics Research Letters, Vol. 16, 181-190, 2010
doi:10.2528/PIERL10061101

Abstract

A novel wideband rectangular dielectric resonator antenna (DRA) is proposed in this paper. A hybrid structure with an isolated dielectric resonator (DR) and an equivalent air-dielectric DR is introduced by lifting the resonator from the ground plane. The hybrid structure is excited by a slot-fed mechanism to obtain a smooth transition between each resonant mode. The resonant modes of the isolated DR and the equivalent DR are merged together to form a wideband impedance bandwidth. It is found that the bandwidth of the proposed antenna can be greatly enhanced by using the hybrid DRA structure instead of the case mounted on the ground plane. A detailed parametric study is carried out to analyze the characteristics of the proposed antenna. Measured results show that the proposed DRA has a 10 dB impedance bandwidth of 61% from 2.4 GHz to 4.5 GHz and the radiation pattern is stable through the operating frequency.

Citation


Zi-Bin Weng, Xiao-Ming Wang, Yong-Chang Jiao, and Fu-Shun Zhang, "Wideband Rectangular Dielectric Resonator Antenna (DRA) with Slot-Fed Design," Progress In Electromagnetics Research Letters, Vol. 16, 181-190, 2010.
doi:10.2528/PIERL10061101
http://www.jpier.org/PIERL/pier.php?paper=10061101

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