Modal mapping between periodic lossy dielectric-loaded waveguide and uniform circular waveguide
文献类型：期刊论文
| 作者 | Du Chao-Hai1,2; Liu Pu-Kun1; Xue Qian-Zhong1; Wang Bin1,2; Li Yan-Lin1,2 |
| 刊名 | Journal of infrared and millimeter waves
 |
| 出版日期 | 2010-08-01 |
| 卷号 | 29期号:4页码:273-277 |
| 关键词 | Millimeter wave Gyrotron-traveling-wave tube (gyro-twt) amplifier Lossy dielectric Modal mapping |
| ISSN号 | 1001-9014 |
| 通讯作者 | Du chao-hai() |
| 英文摘要 | A waveguide periodically loaded with lossy dielectric rings and metal rings is able to effectively control the attenuation of each mode. the is important for suppressing the absolute instability and enhancing the performance of a millimeter-wave gyrotron traveling wave tube amplifier (gyro-twt). the modal mapping between the periodic waveguide and the uniform waveguide was systematically studied for a periodic ceramic-loaded cylindrical waveguide applied in te(01) mode gyro-twt at ka-band. it was revealed that, with a proper dielectric thickness, a higher order mode in uniform dielectric-loaded waveguide can be mapped to a lower order mode in smooth waveguide and the field distributions of the inter-mapped modes in vacuum region bear good resemblance to each other. a mode in periodic system exhibits complex mode distribution. in a period, the field distributions of the mode in the dielectric section and the metal ring section are mapped to those in uniform dielectric-loaded waveguide and smooth waveguide, respectively. the understanding of the modal mapping between the periodic dielectric-loaded waveguide and smooth waveguide is the precondition for the analysis of the complex electron cyclotron interaction in such a periodic system, which brings helpful guidance for the simplification of the physical model. |
| WOS关键词 | BAND GYRO-TWT ; AMPLIFIER |
| WOS研究方向 | Optics |
| WOS类目 | Optics |
| 语种 | 英语 |
| WOS记录号 | WOS:000281784200009 |
| 出版者 | SCIENCE PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2413213 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Du Chao-Hai |
| 作者单位 | 1.Chinese Acad Sci, Inst Elect, Key Lab High Power Microwave Sources & Technol, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Du Chao-Hai,Liu Pu-Kun,Xue Qian-Zhong,et al. Modal mapping between periodic lossy dielectric-loaded waveguide and uniform circular waveguide[J]. Journal of infrared and millimeter waves,2010,29(4):273-277. |
| APA | Du Chao-Hai,Liu Pu-Kun,Xue Qian-Zhong,Wang Bin,&Li Yan-Lin.(2010).Modal mapping between periodic lossy dielectric-loaded waveguide and uniform circular waveguide.Journal of infrared and millimeter waves,29(4),273-277. |
| MLA | Du Chao-Hai,et al."Modal mapping between periodic lossy dielectric-loaded waveguide and uniform circular waveguide".Journal of infrared and millimeter waves 29.4(2010):273-277. |
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来源：中国科学院大学
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