X頻段相對論返波振盪器之研究｜國立清華大學博碩士論文庫

簡易檢索 / 詳目顯示

回結果列表

研究生：	陳致瑋 Chen, Chih-Wei
論文名稱：	X頻段相對論返波振盪器之研究 Study of X-band Relativistic Backward Wave Oscillator
指導教授：	朱國瑞 Chu, Kwo Ray
口試委員:	陳仕宏陳寬任劉偉強張存續
學位類別：	碩士 Master
系所名稱：	理學院 - 物理學系 Department of Physics
論文出版年：	2011
畢業學年度：	99
語文別：	中文
論文頁數：	49
中文關鍵詞：	相對論、返波振盪器、X頻段、高功率
外文關鍵詞：	Relativistic, Backward wave oscillator, X band, High power
相關次數：	點閱：2 下載：0
分享至:	分享至facebook 分享至twitter

查詢本校圖書館目錄查詢臺灣博碩士論文知識加值系統勘誤回報

相對論返波振盪器(Relativistic Backward Wave Oscillators 簡稱RBWO)是藉由高電流的相對論性電子束與電磁波作用產生高功率的同調微波。雖然目前在國際上對此題目已經有很深入的討論，但在我國對此研究並不熱衷，可供參考的資源有限，因此本人將對國外的研究作統整，並利用Magic code軟體對RBWO作模擬計算，將許多複雜的設計做歸納分析，以作為日後再RBWO實驗時的參考依據。本文將就結構、外加磁場、電壓對輸出功率以及作用頻率分析與探討。並且優化上述參數，得以利用4700安培的電流、540千伏的加速電壓，得到輸出功率大約0.8億瓦，操作頻率約為10.1GHz的Ｘ頻段相對論性返波振盪器。

摘要 I
誌謝 Ⅱ
第一章緒論 １
1-1研究背景及其意義 .................................. １
1-2 RBWO國際上研究成果 ................................ 7
1-3高功率微波源研究幾個重要的問題 ..................... 8
1-4 論文概述 .......................................... 8
第二章相對論性返波管的作用原理 9
2-1微波管能量交換機制 ................................. 9
2-2週期結構 .......................................... 10
2-2-1電磁波在週期結構內的傳播形式 .................. 10
2-2-2色散關係(dispersion relation) ................. 12
2-2-3色散關係的重要性 .............................. 15
2-2-4週期結構色散關係的計算 ........................ 16
2-3 RBWO熱腔時電磁波振幅變化 ......................... 17
2-4 RBWO的能量交換方程式 ............................. 20
第三章 MAGIC CODE數值模擬 22
~ IV ~
3-1反射器件的選擇 .................................... 22
3-2電子槍 ............................................ 26
3-2-1 爆炸性電子發射機制 (Explosive electron emission) ................................................... 27
3-2-2 電子束在作用段中的位置 ........................ 30
3-3 飄移段長度 ....................................... 34
3-4週期結構起始端相位變化 ............................ 35
3-5結構週期數 ........................................ 37
3-6出口處反射率的影響 ................................ 39
3-7 外加磁場 ......................................... 41
3-7-1 迴旋吸收 (Cyclotron absorption) ............... 45
第四章 總結 46
參考文獻 48

                                

1. A.V. Gaponov-Grekhov and V.L. Granatstein, Eds. “Application of High Power Microwaves” (Artechn House, Boston, MA, 1994).
2. David M. Pozar, “Microwave Engineering,” John Wiley & Sons, Inc. 1998.
3. A.S. Gilmour, Jr, Microwave Tubes, Artech House, Norwood, 1986.
4. James Benford , John Swegle . High Power Microwave. Artech , Norwood , MA ,1991.
5. V Kumar.” RF loss profile measurement for a high gain, broadband helix TWT” INDIAN JOURNAL OF RADIO 2006.
6. J. A. Nation, “On the coupling of a high-current relativistic electron beam to a slow-wave structure,” Appl. Phy. Lett., vol. 17, no. 17. Relpp. 491-494, 1970.
7. Ren zhen Xiao ,etal. Journal of Applied Physics,2009
8. Efficiency Enhancement of high power vacuum BWO’s Using Non-uniform slow wave structures. IEEE TRANSACTIONS ON PLASMA SCIENCE, VOL. 22, NO. 5, OCTOBER 1994
9. Intense Coherent Cherenkov Radiation Due to the Interaction of a Relativistic Electron Beam with a Slow-Wave Structure. Phys Rev Lett. 1974, 33, P278-P282
10. N. F. Kovalev, M. I. Petelin, M. D. Raiser, A. V. Smorgonsky, and L. A Tsopp, “Generation of high-power pulses of electromagnetic radiation by a flow of relativistic electrons.” Pis’rna Zh. Eksp. Teor. Fiz.. vol. 18. no. 4, pp. 232-235. 1973.
11. K. R. Chu, “The Electron Cyclotron Maser,” Rev. of Modern Phys. 76, 489 (2004).
12. R.S. Elliott, An introduction to Guided Waves and Microwave Circuits, Inc. Prentice- Hall, 1993
13. LEVUSH et al.” THEORY OF RELATIVISTIC BACKWARD-WAVE OSCILLATORS with End Reflections” IEEE TRANSACTIONS ON PLASMA SCIENCE, VOL. 20, NO. 3, JUNE 1992.
14. Swegle, J.A., Poukey, J.W., and Leifeste, G.T., Backward wave oscillators with rippled wall resonators: analytic theory and numerical simulation, Phys. Fluids, 28, 2882, 1985.
~ 49 ~
15. Sergei A. Kitsanov et al, Relativistic BWO With Enhanced Frequency Tunability. IEEE TRANSACTIONS ON PLASMA SCIENCE, VOL. 33, NO. 5, OCTOBER 2005
16. G.N. Fursey. “Field emission in vacuum micro-electronics” Applied Surface Science 215 (2003) 113–134
17. J.F. Gittins, Power Travelling-Wave Tubes, American Elsevier Publishing Company, Inc. New York, 1965, chapter three.
18. Larald D. Moreland IEEE TRANSACTIONS ON PLASMA SCIENCE, VOL. 24, NO. 3, JUNE 1996 “Enhanced Frequency Agility of High-Power Relativistic Backward Wave Oscillators”
19. Aleksander IEEE TRANSACTIONS ON PLASMA SCIENCE, VOL. 26, NO. 3, JUNE 1998 “Relativistic X-Band BWO with 3-GW Output Power”
20. B. Levush,”High- Efficiency Relativistic Backward-Wave Oscillator: Theory and Design” IEEE TRANSACTIONS ON PLASMA SCIENCE, VOL. 24, NO. 3, JUNE 1996
21. Aleksander IEEE TRANSACTIONS ON PLASMA SCIENCE, VOL. 26, NO. 3, JUNE 1998 “Relativistic X-Band BWO with 3-GW Output Power”.
22. Vlasov et al. Phys. Fluids B, Vol. 5, No. 5, May 1993 ” Relativistic backward-wave oscillators operating near cyclotron resonance”
23. Susanne M. Miller IEEE TRANSACTIONS ON PLASMA SCIENCE, VOL. 24, NO. 3, JUNE 1996 “Cyclotron Resonances in Relativistic BWO’s Operating Near Cutoff”.
24. Steven H. Gold , Gregory S. Nusinovich ,“Review of high-power microwave source research” Rev. Sci. Instrum., Vol. 68, No. 11, November 1997.

全文公開日期本全文未授權公開 (校內網路)
全文公開日期本全文未授權公開 (校外網路)

簡易檢索 / 詳目顯示

相關論文