請用此 Handle URI 來引用此文件:
http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/21549
完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 朱國瑞 | |
dc.contributor.author | Guo-Hao Li | en |
dc.contributor.author | 李國豪 | zh_TW |
dc.date.accessioned | 2021-06-08T03:37:34Z | - |
dc.date.copyright | 2019-07-24 | |
dc.date.issued | 2019 | |
dc.date.submitted | 2019-07-22 | |
dc.identifier.citation | [1] K. R. Chu, “Time Domain Analysis of Open Cavity’, Tsing Hua University. Taiwan, R.O.C. (1993)
[2] J. D. Jackson, “Classical Electrodynamics”, John Wiley & son, Inc., p.p. 353-374 (1998) [3] Y. J. Huang, L. H. Yeh, and K. R. Chu, “An analytical study on the diffraction quality factor of open cavities”, Physics of Plasmas 21, 103112 (2014) Doi: 10.1063/1.4900415 [4] 王俊霖, “開口式共振腔之能流分析”, 國立臺灣大學碩士論文, (2018) [5] 陳冠文, “Power flow of analysis”, (2017) | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/21549 | - |
dc.description.abstract | 開口式共振腔常用於磁控管中,因非完全封閉的邊界,所以其特徵與封閉式共振腔相差甚遠。本文運用程式模擬做數值分析,做更深入了解該共振腔的物理特性。
從時域模型出發,推導該模型的數學基礎和所使用邊界條件,且定義時域分析下的品質因子,以及探討不同物理外觀下品質因子和共振頻率的交互關係。 後半則是站在能量流動的角度下,重新看開口式共振腔的行為,改變共振腔的物理結構,看能量流動和耗散行為,細看行進波、反向波功率對品質因子的影響,並由電動力學所得之結果,運用程式予以驗證,並解釋該特徵。 | zh_TW |
dc.description.abstract | Open cavities are commonly used in research of gyrotrons. Because not closed geometrical boundary, the features that is basically different from close cavity. Hence, we use numerical simulation to understand its physical peoperty and phenomenon.
Start from time domain models and declare the numerical algorithm and the boundary condition. We want to find the relation of quality factor and resonant frequency in time domain models in different structure. We also discuss the power flow in open cavities . By changing the structure of open cavities , we analyze the flow and decay of energies and forward power、backward power. We derive the formula of power flow by electrodynamics and check our guess by numerical simulation. Finally we try to give an appropriate physical explanation for the results. | en |
dc.description.provenance | Made available in DSpace on 2021-06-08T03:37:34Z (GMT). No. of bitstreams: 1 ntu-108-R06222064-1.pdf: 3684466 bytes, checksum: 90d6741834370414c8f6d12f8f8d41ef (MD5) Previous issue date: 2019 | en |
dc.description.tableofcontents | 誌謝……………………………………………………………………………...……iii
中文摘要…………………………………………………………………………...…iv 英文摘要 Abstract……………………………………………………………………v 目錄………………………………………………………………………………...…vi 圖錄………………………………………………………………………….………viii 表錄……………………………………………………………………………………x 第一章 緒論………………………………………………………………………....1 第二章 時域分析……………………………………………………………………2 2.1 收斂性測試……………………………………............…………………….7 2.2 場強分佈…………………………………………………………………….9 2.3 共振腔椎角……………………………………………………………...…11 2.4 相位差分佈………………………………………………………………...13 2.5 模態數……………………….………………….........…………………….14 2.6 共振腔長度……………………………………...........…………………....15 2.7 不匹配負載………………………………………………………………...19 第三章 時域法之能流分析……………………………………………………......26 3.1 淨功率………………………………………………………………….......29 3.2 行進波與返向波功率………………………………………………...........34 3.3 新型開口式共振腔………………………..…......…………………….......39 第四章 總結………………………………………………………………………..45 參考文獻……………………………………………………………………………..46 附錄A 圓柱對稱波動方程式推導……………...………………………………….47 附錄B 圓柱形結構的電磁波功率推導………...………………………………….49 | |
dc.language.iso | zh-TW | |
dc.title | 開口式共振腔之時域與能流分析 | zh_TW |
dc.title | Time Domain and Power Flow Analysis of Open Cavity | en |
dc.type | Thesis | |
dc.date.schoolyear | 107-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 陳漢穎,鄭復興,柯俊成 | |
dc.subject.keyword | 開口式共振腔,品質因子,共振頻率,時域法,能量流, | zh_TW |
dc.subject.keyword | Open Cavities,resonant frequency,quality factor,time domain,power flow, | en |
dc.relation.page | 53 | |
dc.identifier.doi | 10.6342/NTU201901658 | |
dc.rights.note | 未授權 | |
dc.date.accepted | 2019-07-22 | |
dc.contributor.author-college | 理學院 | zh_TW |
dc.contributor.author-dept | 物理學研究所 | zh_TW |
顯示於系所單位: | 物理學系 |
文件中的檔案:
檔案 | 大小 | 格式 | |
---|---|---|---|
ntu-108-1.pdf 目前未授權公開取用 | 3.6 MB | Adobe PDF |
系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。