Generation of Plane Spiral Orbital Angular Momentum Waves by Microstrip Yagi Antenna Array

被引：9

作者：

Liu, Xiao Yu ^{[1
]}

Zhu, Yongzhong ^{[1
]}

Xie, Wenxuan ^{[1
]}

Peng, Guo Hao ^{[1
]}

Wang, Wei ^{[1
]}

机构：

[1] Engn Univ Peoples Armed Police, Dept Informat Engn, Xian 710086, Peoples R China

来源：

IEEE ACCESS | 2020年 / 8卷

基金：

中国国家自然科学基金;

关键词：

Microstrip Yagi antenna; plane spiral orbital angular momentum (PSOAM); uniform circular array (UCA); flat structure; TRANSFORMATION; PERFORMANCE; GAIN;

D O I：

10.1109/ACCESS.2020.3026241

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Compared with the orbital angular momentum (OAM) wave whose 3D radiation pattern is a central-hollowed cone, the plane spiral orbital angular momentum (PSOAM) wave propagates along the transverse direction, which is far more convenient for practical applications. In this paper, traditional microstrip Yagi antennas are formed into a uniform circular array (UCA) to radiate PSOAM electromagnetic waves, which has the outstanding advantage of a flat structure. Firstly, the fundamentals of generating PSOAM by microstrip Yagi antenna array is introduced. Secondly, a circular microstrip Yagi PSOAM antenna array fed by a self-designedWilkinson feeding network is designed, fabricated and measured. Eight microstrip Yagi antenna elements and its feeding network are printed on the upper and lower substrate, respectively. The proflle of the proposed antenna is only 0.16 lambda(0), lower than other PSOAMantennas, which is convenient for integration with wireless communication systems. Both simulation and measurement results depict that it is capable of generating PSOAM with mode number l =3 on 3.43GHz. From 3.15GHZ to 3.65GHZ, the vortex electromagnetic wave of l D3 can be observed. The proposed microstrip Yagi antenna based on UCA provides a new way for the research of practical PSOAM antennas, has broad prospect in the future of the reconflgurable fleld.

引用

页码：175688 / 175696

页数：9

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