Miniaturization of Logarithmic Spiral Antenna Using Fibonacci Sequence and Koch Fractals

被引：0
|
作者：
Sharma, Chetna [1 ]
Kumar, Dinesh, V [1 ]
机构：
[1] PDPM Indian Inst Informat Technol Design & Mfg, Dept Elect & Commun Engn, Jabalpur 482005, Madhya Pradesh, India
来源：
2018 3RD INTERNATIONAL CONFERENCE FOR CONVERGENCE IN TECHNOLOGY (I2CT) | 2018年
关键词：
Logarithmic spiral antenna; Fibonacci spiral; Koch curve;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This paper discusses recently reported Fibonacci spiral and Koch fractals to reduce the footprint of a logarithmic spiral antenna (LSA). The Fibonacci spiral has been used to approximate the two continuous peripheries of logarithmic spiral. The inherent quarter circular sections of Fibonacci spiral form the discontinuous base for fractals to be superimposed upon. 1st and 2nd iterations of Koch curve have provided 23.1% and 48.3% of miniaturization respectively as compared to logarithmic spiral antenna with size of 78x50 mm(2). These antennas without backing work efficiently in the frequency band of 2 GHz to 12 GHz with average gain of 5 dB and 98.7% of radiation efficiency. They radiate bidirectional beam of circularly polarized nature when excited with unbalanced feed.
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页数：4
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