اندازه‌گیری سرعت فاز موج الکترومغناطیسی و امپدانس برهم‌کنش در ساختارهای کند موج مارپیچ

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی دکتری، مجتمع دانشگاهی برق و کامپیوتر، دانشگاه صنعتی مالک اشتر، تهران، ایران

2 استادیار، مجتمع دانشگاهی برق و کامپیوتر، دانشگاه صنعتی مالک اشتر، تهران، ایران

3 دانشیار، مجتمع دانشگاهی برق و کامپیوتر، دانشگاه صنعتی مالک اشتر، تهران، ایران

چکیده

ااندازه‌گیری سرعت فاز و امپدانس‌ برهم‌کنش ساختارهای کندموج در صنعت لامپ‌های ریزموج حائز اهمیت ویژه‌ای می‌باشد. در میان روش‌هایی که برای اندازه‌گیری امپدانس برهم‌کنش و سرعت فاز وجود دارد، روش اختلال غیرتشدیدی ساده و در عین حال دقیق و قابل اجرا می‌باشد. در این مقاله درستی این روش برای ساختار کندموج مارپیچ با استفاده از شبیه‌سازها و روابط تحلیلی بررسی شده و بر اساس آن دستگاهی ساخته شده که دقت لازم برای جابجایی اختلالگر را در درون ساختار کند موج داشته باشد. نتایج و قابلیت-های اندازه‌گیری با این دستگاه با استفاده از شبیه‌سازی در نرم‌افزار CST و روابط تحلیلی اثبات شده است.

کلیدواژه‌ها


عنوان مقاله [English]

Measurement of phase velocity of electromagnetic wave and interaction impedance in helical slow-wave structures

نویسندگان [English]

  • Sayed Mohsen Razavi 1
  • emad hamidi 2
  • seyed mohammad javad razavi 3
1 PhD student, Electrical and Computer University Complex, Malik Ashtar University of Technology, Tehran, Iran
2 Assistant Professor, Electrical and Computer Academic Complex, Malik Ashtar University of Technology, Tehran, Iran
3 Daneshyar, Electrical and Computer Academic Complex, Malik Ashtar University of Technology, Tehran, Iran
چکیده [English]

Phase velocity and interaction impedance measurements on slow wave structures are especially important in the microwave tubes industry. Among the methods available for measuring the phase velocity and interaction impedance, non-resonant perturbation method is simple yet accurate and applicable. In this paper, the correctness of this method for helical slow wave structure is investigated with simulation and analytical methods and based on it, a device is built that has the precision needed to move the perturber inside a slow wave structure. The results and measurement capabilities of this device have been demonstrated using simulations in CST software and analytical relationships.

کلیدواژه‌ها [English]

  • slow wave structure
  • phase velocity
  • interaction impedance
  • Non-Rsonant Perturbation (NRP)

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دوره 9، شماره 2 - شماره پیاپی 26
شماره پیاپی26، فصلنامه پاییز و زمستان
آذر 1401
صفحه 99-106
  • تاریخ دریافت: 12 بهمن 1400
  • تاریخ بازنگری: 15 اسفند 1400
  • تاریخ پذیرش: 09 مهر 1401
  • تاریخ انتشار: 01 آذر 1401