Compact 4 element Sierpinski Knopp fractal UWB MIMO antenna with dual band notch

被引：38
作者：
Rajkumar, S. [1 ]
Selvan, Krishnasamy T. [1 ]
Rao, P. H. [2 ]
机构：
[1] SSN Coll Engn, Dept Elect & Commun Engn, Kalavakkam 603110, Tamil Nadu, India
[2] SAMEER Ctr Electromagnet, Madras 600113, Tamil Nadu, India
来源：
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2018年 / 60卷 / 04期
关键词：
fractal structure; MIMO antenna; UWB antenna;
D O I：
10.1002/mop.31092
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：
In this communication, a 4 element ultra-wide band (UWB) multiple-input multiple-output (MIMO) antenna is presented. The total size of the proposed antenna is 40 x 40mm(2). A novel Sierpinski Knopp fractal geometry is used in the antenna radiator design to accomplish miniaturization. The antenna elements are placed orthogonal to each other. The spacing between any pair of elements is 0.11 ( being the free space wavelength at 7.15GHz). A CSRR shape like slot is etched on the radiating element to achieve dual band notch characteristics at WiMax 3.5 GHz and WLAN 5.4 GHz regions. The proposed antenna operates from 2.6 to 10.6GHz, exhibiting a reflection coefficient S-11<-10dB and an isolation better than 20dB. The MIMO antenna does not require any additional structure to improve isolation. Envelope correlation coefficient (ECC) and capacity loss (CL) are calculated to evaluate the diversity performance of the proposed antenna. The measured values exhibit better match with the simulated results.
引用
收藏
页码：1023 / 1030
页数：8
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