A New Approach to Synthesis of a Quasi Non-Uniform Leaky Wave Antenna
- سال انتشار: 1403
- محل انتشار: مجله نوآوری های مهندسی برق و کامپیوتر، دوره: 12، شماره: 1
- کد COI اختصاصی: JR_JECEI-12-1_015
- زبان مقاله: انگلیسی
- تعداد مشاهده: 58
نویسندگان
Electrical Engineering Faculty, Shahid Rajaee Teacher Training University, Tehran, Iran.
Electrical Engineering Faculty, Shahid Rajaee Teacher Training University, Tehran, Iran.
Electrical Engineering Faculty, Shahid Rajaee Teacher Training University, Tehran, Iran.
چکیده
kground and Objectives: In this paper, a closed-form mathematical formula has been presented using of the proposed periodic structure E-field distribution, that helps designers to calculate the width of the slots in Quasi Non-Uniform Leaky Wave Antenna (QNULWA).Methods: This method is based on two steps. In the first step, some important parameters for the proposed antenna design will be extracted using simulation. In the second step, by solving a discrete differential equation, a general relation will be obtained for these types of antennas. This method has been investigated in the case of slot LWA families. Results: A Leaky wave antenna has been synthesized in the ۱۵.۵- ۱۸ GHz frequency range for Gaussian radiation pattern. The results of simulation and antenna design will be very close to each other in ۲.۵ GHz Bandwidth (۱۵.۵ - ۱۸ GHz), which shows the accuracy of this formula. Also, By changing the frequency range ۲-۵ GHz, the main lobe direction of the antenna will scan the space approximately ۱۰ degrees(from ۶۳ to ۷۳ degree). The antenna has an SLL value of about -۲۵ dB and ۱۳ dB Gain at whole band ۱۵.۵-۱۸ GHz .Conclusion: The obtained formula helps the antenna designers to calculate the dimensions this type of antenna for any pattern distribution.کلیدواژه ها
Leaky Wave Antenna (LWA), Quasi Uniform LWA, Quasi Non ULWA, Waveguide Atennaاطلاعات بیشتر در مورد COI
COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.
کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.