طراحی، شبیه‌سازی و ساخت شیفت دهنده فاز فریتی موج بری در باند فرکانسی X

منتصری, ناصر; قانع قره باغ, یعقوب

طراحی، شبیه‌سازی و ساخت شیفت دهنده فاز فریتی موج بری در باند فرکانسی X

نوع مقاله : مقاله پژوهشی

نویسندگان

¹ دانشگاه شاهد

² دانشگاه امام حسین

چکیده

در این مقاله طراحی و ساخت شیفتدهنده فاز فریتی غیر هم‌پاسخ موجبری در فرکانس مرکزی GHz 4/9 بررسی شده است. در طراحی تاثیر پارامترهای مختلف مثل مکان، عرض و میزان بایاس فریت در شیفت فاز و تضعیف مورد بررسی قرار گرفته است. با بررسی پارامترهای مختلف، حالت بهینه برای شیفتدهنده فاز انتخاب شده است. با توجه به اینکه امکان استفاده از روش تحلیلی برای چنین ساختاری فراهم نیست، از نرم‌افزار HFSS با روش المان محدود برای محاسبه و بهینه‌سازی شیفتدهنده فاز استفاده شده است. شیفتدهنده فاز نهایی ساختهشده، شامل موج‌بر 112- WR و چهار تیغه فریتی با ابعاد mm 30 mm 5 mm 2 چسبیده به دیواره پهن موجبر می‌باشد. نتایج اندازه‌گیری نشان می‌دهند که در فرکانس GHz 4/9 شیفت فاز حدود 90 و تضعیف کمتر از dB 15/0 حاصل شده است. نتایج حاصل از اندازه‌گیری و شبیه‌سازی کاملاً منطبق بوده و صحت مراحل بهینه‌سازی را تایید می‌کند.

کلیدواژه‌ها

20.1001.1.26455153.1394.3.3.6.5

عنوان مقاله [English]

Design, Simulation and Fabrication of Ferrite Phase Shifter Waveguide in Frequency Band X

چکیده [English]

In this paper, the design and fabrication of a non-reciprocal phase shifter with high power handling capability is considered in the frequency of 9.4 GHz. In the design procedure, the effect of ferrite parameters such as location, width, and DC magnetic bias over phase shift value and insertion loss is outlined. By considering various parameters, the optimum design to obtain suitable phase shift is chosen. As regards impossibility of theoretical analysis of such structures, the HFSS simulator is used for calculation and optimization of the phase shifter. To ensure HFSS results, the structure is also simulated using the CST simulator and obtained results of two simulators are compared together. The final phase shifter consists of standard waveguide WR-112 and four ferrite slabs where connected to the wide wall of waveguide with dimension of 2mm×5mm×30mm. The measured results show that the 90° phase shift and insertion loss about 0.15 dB are obtained in frequency of 9.4 GHz. The measurement results have a very good agreement with simulation results.

کلیدواژه‌ها [English]

Ferrite
Ferrite Phase Shifter
Waveguide Phase Shifter

مراجع

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