Reduction of Mutual Coupling Between Two Circularly Polarized Magneto-Electric Dipole Antennas Using Metasurface Wall Polarization Converter for ۵G Application
محل انتشار: مجله مهندسی برق مجلسی، دوره: 18، شماره: 1
سال انتشار: 1403
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 30
فایل این مقاله در 9 صفحه با فرمت PDF قابل دریافت می باشد
- صدور گواهی نمایه سازی
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
JR_MJEE-18-1_006
تاریخ نمایه سازی: 9 اردیبهشت 1403
چکیده مقاله:
The mutual coupling issue between two Right Hand Circularly Polarized (RHCP) Magneto-electric (ME) dipole antennas is addressed in this study. To mitigate this issue, a Metasurface Polarization-Rotator (MPR) Wall is employed, resulting in effective minimization of the coupling effects. The innovative antenna design, with high gain, shows promise for ۵G applications. It consists of two electric dipole plates with triangular corners positioned at the top, along with two plates acting as magnetic dipoles perpendicular to the ground plane. Additionally, the presence of four plates on the outer periphery of the antenna contributes to the improvement of the circular polarization (CP) performance of the antenna. The feeding structure is configured in a V-shape. Integration of the metasurface polarization-rotator led to a significant reduction in mutual coupling. On average, the mutual coupling is decreased by more than -۲۰.۵ dB, reaching impressive values of -۴۵ dB at ۲ GHz, -۵۵ dB at ۳.۱ GHz, and -۴۰ dB at ۳.۷ GHz when the MPR wall is placed between the ME antennas. The antenna demonstrates promising performance in terms of impedance bandwidth, with a remarkable value of ۶۱.۴% for |S۱۱| < [-۱۰dB]. Furthermore, the axial ratio bandwidth for AR < [۳ dB] is ۶۳.۳۶%, representing an ۱۱% increase compared to the configuration without the MPR Wall. The maximum right-hand circular polarization gain achieved by the antenna is ۹.۹۱ dB at a frequency of ۳ GHz. Additionally, the maximum front-to-back ratio (FBR) is ۳۷.۶ dB at a frequency of ۲.۵ GHz. By comparing and analyzing the simulation results for the scenarios with and without the MPR Wall, it becomes evident that the MPR Wall does not significantly affect the parameters of gain, front-to-back ratio, and impedance bandwidth.
کلیدواژه ها:
نویسندگان
mohamad hossein ashouri
School of Electrical and Computer Engineering, Qom University of Technology, Qom, Iran
saeed fakhte
School of Electrical and Computer Engineering, Qom University of Technology, Qom, Iran
مراجع و منابع این مقاله:
لیست زیر مراجع و منابع استفاده شده در این مقاله را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود مقاله لینک شده اند :