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Analyzing the Effect of using Electromagnetic Metamaterials in the Production of Plane Spiral Orbital Angular Momentum Waves (PSOAM) | ||
| Modeling and Simulation in Electrical and Electronics Engineering | ||
| دوره 4، شماره 4 - شماره پیاپی 18، اسفند 2024، صفحه 51-57 اصل مقاله (1.29 M) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22075/mseee.2025.38236.1217 | ||
| نویسندگان | ||
| Roghieh Karimzadeh Baee* 1؛ Reza Darvishi2 | ||
| 1Satellite Communication Group, Faculty of Communications Technology, ICT Research Institute, Tehran, Iran. | ||
| 2Imam Hossein University, Tehran, Iran. | ||
| تاریخ دریافت: 16 تیر 1404، تاریخ بازنگری: 03 شهریور 1404، تاریخ پذیرش: 26 شهریور 1404 | ||
| چکیده | ||
| The utilization of orbital angular momentum (OAM) presents an effective approach that enables the simultaneous use of multiple channels on a single frequency. Compared with conventional OAM carrier waves—whose three-dimensional radiation pattern resembles a cone with a hollow region at its center—the planar-spiral orbital angular momentum (PSOAM) carrier propagates transversely, making it more suitable for various practical applications. For the first time, the generation of PSOAM waves using a uniform circular array of microstrip antennas based on electromagnetic metamaterials has resulted in a phase pattern distinct from the conventional OAM theory. This study demonstrates that incorporating metamaterials into the antenna array structure facilitates the generation of higher-order OAM modes with fewer elements than conventional antennas. Simulation results indicate that the proposed array achieves approximately a 27% reduction in the number of antenna elements. Furthermore, the introduced antenna exhibits a wide relative bandwidth of 1.93. | ||
| کلیدواژه‌ها | ||
| Orbital angular momentum؛ Planar spiral orbital angular momentum؛ Circular array؛ Electromagnetic metamaterials | ||
| مراجع | ||
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آمار تعداد مشاهده مقاله: 78 تعداد دریافت فایل اصل مقاله: 60 |
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