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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 | ||
مقالات آماده انتشار، پذیرفته شده، انتشار آنلاین از تاریخ 26 شهریور 1404 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 | ||
1Assistant Professor of Satellite Communication Group, Faculty of Communications Technology, ICT Research Institute, Tehran, Iran | ||
2Master's student, Imam 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 | ||
آمار تعداد مشاهده مقاله: 1 تعداد دریافت فایل اصل مقاله: 1 |