نوع مقاله : پژوهشی

نویسندگان

1 دانشکده مهندسی برق- واحد نجف‌آباد، دانشگاه آزاد اسلامی، نجف‌آباد، ایران

2 مرکز تحقیقات پردازش دیجیتال و بینایی ماشین- واحد نجف‌آباد، دانشگاه آزاد اسلامی، نجف‌آباد، ایران

چکیده

در این مقاله بهبود الگوی تشعشعی و خواص چند بانده آنتن فراکتال ذوزنقه‌ای با لایه‌های خود مکمل، مورد بررسی قرار گرفته است. تغذیه آنتن توسط خط مایکرواستریپ و با دو زیر لایه، برای افزایش پهنای باند و بهبود پترن تشعشعی ایجاد شده است. طبقه بندی دو لایه مکمل باعث اثرات مثبت در فرکانس تشدید و بهبود پترن تشعشعی شده است. این آنتن بازدهی، پهنای باند و الگوی تشعشی مناسبی، در فرکانسهای تشدید طراحی شده ایجاد کرده است. شش فرکانس تشدید با افت برگشتی کمتر از 15 دسیبل (S11 کمتر از 15- دسیبل) در محدوده فرکانسی 5/0 تا 4 گیگاهرتز به‌دست آمده است. نتایج حاصل از اندازه‌گیری صحت نتایج به‌دست آمده از شبیه‌سازی را به وضوح تایید می‌کند.

چکیده تصویری

آنتن پچ مثلثی با فراکتال ذوزنقه‌ای به همراه دو زیر لایه با لایه‌های مکمل

تازه های تحقیق

- ارائه یک آنتن فرکتال ذوزنقه ای با ساختار دو لایه مکمل جهت تغذیه غیر مستقیم آنتن

- ارائه یک آنتن چند بانده بی سیم که کلیه باندهای فرکانسی UMTS، GSM1800، GPS، GSM850، GSM900، LTE2500، Wi-Fi/WLAN، WIMAX و LTE2300 را پوشش می­دهد.

- ارایه آنتنی با پترن تشعشعی یکسان برای کلیه باندهای فرکانسی تحت پوشش

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

A Triangular Patch Antenna with a Trapezoidal Fractal with Two Sublayers with Complementary Layers

نویسندگان [English]

  • Mohammadreza Sepehri 1
  • Mohammad Amin Honarvar 2

1 Department of Electrical Engineering- Najafabad Branch, Islamic Azad University, Najafabad, Iran

2 Digital Processing and Machine Vision Research Center- Najafabad Branch, Islamic Azad University, Najafabad, Iran

چکیده [English]

In this paper, the improvement of the radiation pattern and the properties of multi-band trapezoidal fractal antenna with self-complementary layers have been investigated. The antenna is excited by a microstrip feed-line with two sub-layers to increase bandwidth and improve the radiation pattern. The dual-layered complementary arrangement has had positive effects on the resonance frequencies and improved the properties of the radiation patterns. This antenna offers a good efficiency, suitable bandwidth, and radiated pattern in a designed resonance frequency. Six bands (S11<-15 dB), with center frequencies of f1=0.9 GHz, f2=1.57 GHz, f3=1.85 GHz, f4=2.15 GHz, f5=2.5 GHz and f6=3.5 GHz are obtained within the band of (0.5-4) GHz. This antenna offers good efficiency which changes from 70% to 95%. The measurement results clearly confirm the simulation results

کلیدواژه‌ها [English]

  • antenna
  • microstrip technology
  • trapezoidal fractal
  • complementary layer

Citation: M.R. Sepehri, M.A. Honarvar, "A triangular patch antenna with a trapezoidal fractal with two sublayers with complementary layers", Journal of Intelligent Procedures in Electrical Technology, vol. 14, no. 54, pp. 135-146, September 2023 (in Persian).

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