Bandwidth Enhancement of Dielectric Resonator Reflectarray Antenna

被引：2
|
作者：
Ahmadi, Farzaneh [1 ]
Forooraghi, Keyvan [1 ]
Atlasbaf, Zahra [1 ]
Virdee, Bal [2 ]
机构：
[1] Tarbiat Modares Univ, Elect & Comp Engn Dept, Tehran 14115111, Iran
[2] London Metropolitan Univ, Fac Life Sci & Comp, Ctr Commun Technol, London, England
来源：
ELECTROMAGNETICS | 2014年 / 34卷 / 07期
关键词：
dielectric resonator antenna; reflectarray antenna; bowtie-shaped slot;
D O I：
10.1080/02726343.2014.936299
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：
Aperture-coupled dielectric resonator antenna is proposed using a novel reflectarray antenna unit cell structure. It is shown that a bowtie-shaped slot can enhance the bandwidth performance of a reflectarray antenna. The unit cell's reflection phase response was verfified experimentally using the waveguide simulator method. An array comprising of 256 elements was simulated using the finite integration technique based on the proposed unit cell. The array exhibits a 3-dB gain bandwidth of 28% and radiation efficiency of 43.8%. These results were validated using the transmission-line method.
引用
收藏
页码：513 / 521
页数：9
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