Novel Design of Compact UWB Dielectric Resonator Antenna With Dual-Band-Rejection Characteristics for WiMAX/WLAN Bands

被引：51
作者：
Abedian, M. [1 ]
Rahim, S. K. A. [1 ]
Danesh, Sh. [1 ]
Hakimi, S. [1 ]
Cheong, L. Y. [2 ]
Jamaluddin, M. H. [1 ]
机构：
[1] UTM, Wireless Commun Ctr, Johor Baharu 81310, Malaysia
[2] Univ Tunku Abdul Rahman, Dept Microwave Engn, Cyberjaya 81310, Malaysia
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2015年 / 14卷
关键词：
Band-notched; compact; dielectric resonator antenna (DRA); ultrawideband (UWB) antenna; WLAN BAND;
D O I：
10.1109/LAWP.2014.2360828
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 novel compact dual band-notched dielectric resonator antenna (DRA) for ultrawideband (UWB) applications is proposed. Here, the bandwidth enhancement and the first band notch is realized by embedding a stub that is located to the hollow center of a U-shaped feedline simultaneously. By etching an inverted T-shaped parasitic strip at the back plane of an antenna that is surrounded by a dielectric resonator (DR), the second band rejection is created. By cutting a slot at the proper position on the ground plane, the width of the second band notch is controlled. The proposed antenna size is 12 x 30 x 6 mm3 or about 0.124 lambda x 0.31 lambda x 0.062 lambda at 3.1 GHz. The measurement results demonstrate that the proposed DRA provides acceptable radiation performances such as an ultra-wide impedance bandwidth of around 122% with two sufficient band rejections in the frequency bands of 3.22-4.06 and 4.84-5.96 GHz, high radiation efficiency, and nearly constant gain.
引用
收藏
页码：245 / 248
页数：4
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