Generation of OAM Beam with High Azimuthal Symmentry through Planar UCA for Vehicular Communication

IF 0.8 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Advanced Electromagnetics Pub Date : 2023-05-25 DOI:10.7716/aem.v12i3.2104

Y. Mallikharjuna Reddy, U. V. Ratna Kumari

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引用次数: 0

Abstract

In this paper, a uniform circular array (UCA) with circularly polarized (CP) square patches is presented for the generation of orbital angular momentum (OAM) beam with high azimuthal symmetry. The proposed CP UCA is a compact structure with a simple feed network generating OAM beams. The design consists of eight circularly polarized square patch antennas which are geometrically rotated to obtain the required phase distribution. The left hand circularly polarized square patch used as a radiating element in UCA exhibits l = + 1 OAM mode, while the right hand circularly polarized square patch exhibits l = - 1 OAM mode. In addition, the antenna exhibits a single-layer structure, which facilitated the fabrication of the design and reduced the cost as well. The simulated and measured results are reported showing that the antenna exhibits an OAM beam of l = + 1 and l = - 1 modes at 5.85 GHz with high azimuthal symmetry. The mode purity estimation is also reported for the OAM l = + 1 and l = - 1 modes. The gain of the conical shaped OAM beam is almost 11 dBi which makes it quite viable for applications in wireless and vehicular communications.

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用于车载通信的平面UCA生成高方位角符号OAM波束

本文提出了一种具有圆偏振（CP）正方形贴片的均匀圆阵列（UCA），用于产生具有高方位角对称性的轨道角动量（OAM）光束。所提出的CP-UCA是一种紧凑的结构，具有生成OAM波束的简单馈送网络。该设计由八个圆偏振方形贴片天线组成，这些天线在几何上旋转以获得所需的相位分布。在UCA中用作辐射元件的左手圆偏振方形贴片表现出l＝+1 OAM模式，而右手圆偏振方形补丁表现出l=-1 OAM模式。此外，该天线采用单层结构，方便了设计的制作，降低了成本。模拟和测量结果表明，该天线在5.85GHz处呈现出l＝+1和l＝-1模式的OAM波束，具有高方位角对称性。还报道了OAM l＝+1和l＝-1模式的模式纯度估计。圆锥形OAM波束的增益几乎为11dBi，这使得它在无线和车辆通信中的应用非常可行。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Advanced Electromagnetics ENGINEERING, ELECTRICAL & ELECTRONIC-

CiteScore

2.40

自引率

12.50%

发文量

审稿时长

10 weeks

期刊介绍： Advanced Electromagnetics, is electronic peer-reviewed open access journal that publishes original research articles as well as review articles in all areas of electromagnetic science and engineering. The aim of the journal is to become a premier open access source of high quality research that spans the entire broad field of electromagnetics from classic to quantum electrodynamics.