طراحی تقسیم‌کننده‌ توان بر مبنای فناوری موج‌بر شکافی به منظور استفاده در آنتن آرایه‌ شکافی باند 60 گیگاهرتز با سطح گلبرگ کناری پایین

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی کارشناسی ارشد مخابرات، دانشگاه کاشان

2 استادیار/دانشگاه کاشان

چکیده

در این مقاله یک نمونه تقسیم­کننده توان موج میلی­متری برمبنای فناوری موج‌بر شکافی برای استفاده در شبکه تغذیه یک آنتن­ آرایه شکافی طراحی می­شود. نتایج شبیه­سازی نشان می­دهد که ساختار پیشنهادی دارای پهنای باند تطبیق ورودی حدود 10% در محدوده فرکانسی 58 تا GHz 64 است. مزیت بارز استفاده از فناوری موج‌بر شکافی در فرکانس­های موج میلی­متری دست­یابی به ساختارهای موج‌بری با تلفات کم و بدون نیاز به اتصال فیزیکی لایه­های مختلف ساختار به یکدیگر است که پیچیدگی و چالش­های فرایند ساخت را کاهش می­دهد. در نهایت با استفاده از تقسیم­کننده­ توان طراحی­شده، یک آنتن آرایه شکافی صفحه­ای با سطح گلبرگ کناری dB 23- در فرکانس مرکزی GHz 60 با پهنای باند 1/4% طراحی می­شود. بهره آنتن در محدوده فرکانسی GHz 8/58 تا GHz 25/61 بیشتر از dB 7/21 با بازدهی بالاتر از 88% می‌باشد.

کلیدواژه‌ها


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