A Novel Cup-Shaped Inverted Hemispherical Dielectric Resonator Antenna for Wideband Applications

被引：25
作者：
Mukherjee, Biswajeet [1 ,2 ]
Patel, Pragati [1 ]
Mukherjee, Jayanta [1 ]
机构：
[1] Indian Inst Technol, Dept Elect Engn, Bombay 400076, Maharashtra, India
[2] Indian Inst Informat Technol Design & Mfg IIITDM, Jabalpur 482005, India
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2013年 / 12卷
关键词：
Bandwidth; efficiency; gain; hemispherical dielectric resonator antenna; modes; COAXIAL PROBE;
D O I：
10.1109/LAWP.2013.2283213
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 cup-shaped dielectric resonator antenna (DRA) geometry based on inverted hemispherical dielectric resonator antenna (HDRA) is proposed and investigated. The material used for investigation is Rogers TMM10, which is a ceramic thermoset polymer composite material having a dielectric constant of epsilon(r) = 9.2. The cup-shaped geometry offers a wideband of 83% impedance bandwidth for vertical bar S-11 vertical bar < -10 dB at 2.3 GHz. Two modes have also been investigated which show the presence of TM101-like mode and TM01 delta-like mode of the cylindrical DRA. The peak gain observed is 4.5 dBi at around 2.3 GHz. The measured results show that the efficiency is above 90% for the bandwidth of operation.
引用
收藏
页码：1240 / 1243
页数：4
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