Generation of OAM Waves and Analysis of Mode Purity for 5G Sub-6 GHz Applications

被引：1

作者：

Noor, Shehab Khan ^{[1
]}

Ismail, Arif Mawardi ^{[1
]}

Yasin, Mohd Najib Mohd ^{[1
]}

Osman, Mohamed Nasrun ^{[1
]}

Ramli, Nurulazlina ^{[2
]}

Rambe, Ali H. ^{[1
,3
]}

Iqbal, J. ^{[4
,5
]}

机构：

[1] Univ Malaysia Perlis, Fac Elect Engn Technol, Ctr Excellence, Adv Commun Engn ACE, Kangar, Perlis, Malaysia

[2] SEGi Univ Petaling Jaya, Ctr Adv Elect & Elect Syst CAEES Fac Engn, Built Environm & Informat Technol, Selangor, Malaysia

[3] Univ Sumatera Utara, Dept Elect Engn, Medan 20155, Indonesia

[4] Univ Sains Malaysia, Sch Elect & Elect Engn, Engn Campus, George Town 14300, Malaysia

[5] Gomal Univ, Fac Engn & Technol, Dera Ismail Khan 29050, Pakistan

来源：

CMC-COMPUTERS MATERIALS & CONTINUA | 2023年 / 74卷 / 01期

关键词：

Orbital angular momentum; vortex waves; fifth generation wireless communications; uniform circular array antenna; patch antenna; ORBITAL ANGULAR-MOMENTUM; MICROSTRIP PATCH ANTENNA; DESIGN; ARRAY; ENHANCEMENT;

D O I：

10.32604/cmc.2023.031170

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This article presents the generation of Orbital Angular Momentum (OAM) vortex waves with mode 1 using Uniform Circular Array (UCA) antenna. Two different designs, namely, UCA-1 (4-element array antenna) and UCA-2 (8-element array antenna), were designed and fabricated using FR-4 substrate to generate OAM mode 1 at 3.5 GHz (5G mid-band). The proposed antenna arrays comprised rectangular microstrip patch elements with inset fed technique. The elements were excited by a carefully designed feeding phase shift network to provide similar output energy at output ports with desired phase shift value. The generated OAM waves were confirmed by measuring the null in the bore sight of their 2D radiation patterns, simulated phase distribution and intensity distribution. The measurement results agree well with the simulation results. Moreover, a detailed mode purity analysis of the generated OAM waves was carried out considering different factors. The investigation found that the greater the number of elements, the higher the purity of the generated OAM wave. Compared with other previous works, the proposed antenna design of this paper is very simple to design and fabricate. In addition, the proposed antennas are compact in design even at lower frequency band with very wide bandwidth to meet the requirements of 5G mid-band applications.

引用

页码：2239 / 2259

页数：21