رویکردی جدید در طراحی سطوح انتخابگر فرکانس چند لایه بر پایه تنظیم قطب- صفرهای تک‌تک صفحات

محورهای موضوعی : مخابرات میدان و موج

محمود فلاح ¹ (دانشکده مهندسی برق، دانشگاه علم و صنعت ایران، تهران، ایران)
علی عبدالعالی ² (دانشکده مهندسی برق، دانشگاه علم و صنعت ایران، تهران، ایران)

تاریخ دریافت : 1394/05/02 تاریخ پذیرش : 1394/06/02 تاریخ انتشار : 1394/08/10

کلید واژه: سطوح انتخابگر فرکانس(FSS), مینیاتوری سازی, ساختار متناوب, فیلتر فضایی, رادوم,

چکیده مقاله :

در این مقاله یک رویکرد جدید برای طراحی سطوح انتخابگر فرکانس معرفی شده است. ما سعی می‌کنیم تا پاسخ فرکانسی مطلوب خود را با استفاده از تنظیم پاسخ فرکانسی هر سطح تشکیل‌دهنده، بسازیم. همچنین در این مقاله یک سطح انتخابگر فرکانس مینیاتوری دو بانده پیشنهاد شده است. در مقایسه با تکنیک‌های طراحی سنتی ساختار ارائه شده دارای مزیت غیر رزونانسی بودن عناصر سلول واحد، با ابعاد مینیاتوری می‌باشد. سلول‌های FSS پیشنهادی از دو سطح خازنی و سلفی تشکیل شده است که مانند یک فیلتر دو بانده در مقابل عبور امواج الکترومغناطیسی عمل می‌کند. عملکرد این ساختار برای زوایای مختلف تابش و پلاریزاسیون پایدار می‌باشد

چکیده انگلیسی:

In this paper, a new approach (not new technique) is introduced for designing frequency selective surfaces (FSSs). We try to compose the desired frequency response using the frequency response of each constituent FSS. Also, a new dual-band miniaturized frequency selective surface is proposed. In contrast to the conventional FSS design technique, the presented structure takes advantage of non-resonance elements and has unit cells with a miniaturized dimension. The proposed FSS cells are composed of two complex and inductive planes that act as a dual-band filter through the pass of electromagnetic wave propagation. The performance of this structure toward various angles of incident waves and different polarizations is stable.

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