حزمتا تمرير ضيقتا النطاق ضمن الحزمة الممنوعة الناتجة عن شريط تجزئيي باستخدام معامل تغيير توزع المادة
Abstract
تزايد الاهتمام في السنوات الأخيرة بالتطبيقات العملية للهندسة التجزيئية (Fractional Geometry) في مجال الأمواج الضوئية والأمواج الميكروية, كونها تملك خصائص فريدة مثل خاصية التشابه الداخلي (self-similarity) حيث كل جزء من الجسم التجزيئي يشبه الجسم الأصلي ولكن مصغر بمقدار معامل التجزيء, بالإضافة إلى عدم الانتظام الموجود في هذه البنية الذي ينتج عنه ظهور حزم تمرير(the peak) متوضعة ضمن حزم المنع الترددية، وبالتالي يمكن انطلاقاً من هذه النتيجة، تصميم العديد من التجهيزات عديدة الترددات, على سبيل المثال مرشحات متعددة الحزم, ومرشحات انتقائية, وهوائيات متعددة الحزم وهوائيات ذات حزمة ترددية عريضة.
The applications of fractional geometry has attracted greater attention In recent years, because it is characterized by specific properties such as self-similarity in which the parts of objects are exactly or approximately similar to the original object itself, but reduced by a reduction factor and the irregularity of the structure, leading to the appearance of the peaks inside high-attenuation frequency bands. This result contributes to designing many multi-frequency devices such as multi-band filters, selective filters, multi-band antennas, and multi-broadband antennas.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2019 ttps://creativecommons.org/licenses/by-nc-sa/4.0/
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
The authors retain the copyright and grant the right to publish in the magazine for the first time with the transfer of the commercial right to Tishreen University Journal for Research and Scientific Studies - Engineering Sciences Series
Under a CC BY- NC-SA 04 license that allows others to share the work with of the work's authorship and initial publication in this journal. Authors can use a copy of their articles in their scientific activity, and on their scientific websites, provided that the place of publication is indicted in Tishreen University Journal for Research and Scientific Studies - Engineering Sciences Series . The Readers have the right to send, print and subscribe to the initial version of the article, and the title of Tishreen University Journal for Research and Scientific Studies - Engineering Sciences Series Publisher
journal uses a CC BY-NC-SA license which mean
You are free to:
- Share — copy and redistribute the material in any medium or format
- Adapt — remix, transform, and build upon the material
- The licensor cannot revoke these freedoms as long as you follow the license terms.
- Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- NonCommercial — You may not use the material for commercial purposes.
- ShareAlike — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.
- No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
