طراحی و تست آنتن دو بانده4G/5G برای باندهای فرکانسی 6/2 GHz و 5/3 GHz
الموضوعات :امیر رضاقلی 1 , حسین زرگر 2 , ایران سرافراز 3
1 - موسسه آموزش عالی زند شیراز
2 - پژوهشگاه ارتباطات و فناوری اطلاعات
3 - دانشگاه آزاد اسلامی واحد شیراز
الکلمات المفتاحية: 4G LTE, 5G NR, آنتن چندبانده, آنتن پچ, شکاف.,
ملخص المقالة :
نسل پنجم شبکه تلفن¬های همراه (5G NR) با تکیه بر نسل چهارم (4G LTE) خود، پایه و اساس پهنای باند بهبودیافته شامل ظرفیت بیشتر برای کاربران بی¬سیم، لینک¬های بهبود یافته بین کاربران (زمان تأخیر و تلفات کمتر) و افزایش نرخ داده را برقرار می¬نماید. باندهای n38 (2600 مگاهرتز)، n48 (3500 مگاهرتز) و n78 (3500 مگاهرتز) به دلیل در دسترس بودن نسبتاً متداول، از رایج¬ترین باندهای فرکانسی 5G تست شده و مستقر می¬باشند. آنتن¬های دو یا چند بانده از الزامات اصلی همزیستی 5G با 4G هستند. از آنجایی که شکاف¬ها، آنتن¬های پچ را کوچک¬تر و کم-هزینه¬تر می¬کنند، آنتن¬های پچ شکاف¬دار برای استفاده در کاربردهای دو یا چند بانده 4G/5G بسیار جذاب می¬باشند. در این مقاله، یک آنتن پچ شکاف¬دار دو بانده برای باندهای فرکانسی 6/2 گیگاهرتز (برای هر دو4G LTE و 5G NR) و 5/3 گیگاهرتز (برای 5G NR) ارائه و پیشنهاد شده و عملکرد آن به صورت تجربی با موفقیت بررسی و تأیید شده است. توافق بسیار خوبی بین شبیه¬سازی ها و نتایج تجربی مشاهده می¬شود.
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