ملاحظات فیزیکی طراحی دوقطبی کننده پالس بلوملین

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشکده مهندسی برق - دانشگاه صنعتی شریف

2 دانشگاه صنعتی شریف

چکیده

دوقطبی‌کننده پالس بلوملین برای تولید پالس‌های ولتاژ بالا با عرض فوق­باریک و دوقطبی­شده در حد چند نانو­ثانیه و کمتر مورد توجه صنایع امروزی می­باشد. در دوقطبی‌کننده پالس بلوملین با استفاده از خطوط انتقال و انعکاس امواج در خطوط انتقال، ولتاژ تولیدشده به‌صورت متقارن دوقطبی درمی‌آید. ساختار واقعی مولد پالس بلوملین بر اساس ترکیب تو­در­توی چند خط انتقال است. مشکلی که مشاهده می‌شود این است که ولتاژ خروجی این ترکیب تودرتو نسبت به ولتاژ خروجی مدل مداری آن کیفیت پایین­تری دارد. این مقاله در مورد نتایج طراحی و شبیه­سازی یک دوقطبی‌کننده پالسی ولتاژ بالا با ولتاژ kV­300 و عرض پالس nS­2 با امپدانس بار Ω­50 می­باشد. این مقاله با بررسی انواع عوامل فیزیکی ساختار تودرتو به بررسی تأثیر آنها بر شکل موج پالس دوقطبی شده می­پردازد. نتایج شبیه­سازی برای اعتبار­سنجی تحلیل‌های انجام‌شده ارائه می­شوند

کلیدواژه‌ها


عنوان مقاله [English]

Physical Design Considerations of Blumlein Bipolar Pulse Former

نویسندگان [English]

  • Amin Farajzadeh 1
  • Sh. Kaboli 2
1 Department of Electrical Engineering, Sharif University of Technology
2 Associate Professor of Sharif University
چکیده [English]

Blumlein bipolar pulse former is a widely used bipolar pulse generator with good performance. This structure produces a bipolar pulse from a unipolar pulse using the reflection theorem of the waves in transmission lines. Practical considerations in the design process of Blumlein bipolar pulse former is an important issue from the view point of output voltage waveform quality and construction cost. In this paper, a Blumlein bipolar pulse former has been simulated and analyzed to investigate the effect of different physical parameters on the output voltage waveform. The results of simulations can be used to design a bipolar pulse generator with acceptable output voltage waveform.

کلیدواژه‌ها [English]

  • Bipolar pulse
  • Transmission lines
  • Unipolar pulse
  • Wave reflections
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