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

页码：245 / 248

页数：4

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