WIDEBAND RECTANGULAR DIELECTRIC RESONATOR ANTENNA (DRA) WITH SLOT-FED DESIGN | Zendy

Zibin Weng | Zendy; Xiaoming Wang | Zendy; YongChang Jiao | Zendy; FuShun Zhang | Zendy

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WIDEBAND RECTANGULAR DIELECTRIC RESONATOR ANTENNA (DRA) WITH SLOT-FED DESIGN

Author(s) -

Zibin Weng,

Xiaoming Wang,

YongChang Jiao,

FuShun Zhang

Publication year - 2010

Publication title -

progress in electromagnetics research letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.245

H-Index - 33

ISSN - 1937-6480

DOI - 10.2528/pierl10061101

Subject(s) - dielectric resonator antenna , ground plane , wideband , bandwidth (computing) , dielectric resonator , resonator , acoustics , electrical impedance , radiation pattern , physics , optics , antenna (radio) , electrical engineering , telecommunications , engineering

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 10dB impedance bandwidth of 61% from 2.4GHz to 4.5GHz and the radiation pattern is stable through the operating frequency.

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