Wideband Dielectric Resonator Antenna With a Tunnel

被引:24
|
作者
Chang, Tze-Hsuan [1 ,2 ]
Huang, Yu-Ching [3 ]
Su, Wei-Fang [3 ]
Kiang, Jean-Fu [1 ,2 ]
机构
[1] Natl Taiwan Univ, Dept Elect Engn, Taipei 10764, Taiwan
[2] Natl Taiwan Univ, Grad Inst Commun Engn, Taipei 10764, Taiwan
[3] Natl Taiwan Univ, Dept Mat Sci & Engn, Taipei 10764, Taiwan
关键词
Dielectric resonator (DR); resonant mode;
D O I
10.1109/LAWP.2008.928477
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A wideband rectangular dielectric resonator (DR) with a horizontal tunnel is proposed. The bandwidth of the TE111y mode is increased by using the tunnel to reduce the Q-factor of the DR. As the tunnel height is increased, the electric field distribution of the TE112y mode is significantly modified such that its electric field distribution near the top surface of DR is similar to that of the TE111y mode, rendering a broadside radiation pattern. The band of the modified TE112y mode is merged with that of the TE111y mode to achieve a wide bandwidth of 20% (4.76-5.86 GHz) with broadside radiation pattern of vertical polarization on the xy-plane. The proposed DR antenna can be used in WLAN 802.11a applications.
引用
收藏
页码:275 / 278
页数:4
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