Investigation of an Axial Virtual Cathode Oscillator with an Open-Ended Coaxial Cathode
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Se-Hoon | - |
dc.contributor.author | Lee, Chang-Jin | - |
dc.contributor.author | Kim, Wan-Il | - |
dc.contributor.author | Ko, Kwang-Cheol | - |
dc.date.accessioned | 2023-09-26T07:52:37Z | - |
dc.date.available | 2023-09-26T07:52:37Z | - |
dc.date.created | 2022-06-29 | - |
dc.date.issued | 2022-05 | - |
dc.identifier.issn | 2671-7255 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/191152 | - |
dc.description.abstract | A cathode with an open-ended coaxial structure is experimentally investigated using an axial virtual cathode oscillator (vircator). To enhance the microwave power output, an open-ended coaxial cathode is installed in the axial vircator. The proposed cathode is designed based on the reciprocating frequency of the vircator. The operation features of an axial vircator with a solid cathode, an annular cathode, and an open-ended coaxial cathode are comparatively analyzed through simulations and experiments. Three cathodes are machined using graphite. A stainless steel mesh with a transparency of 70% is used as an anode. The anode-to-cathode gap is fixed to 6 mm. The vircator is driven using a 10-stage PFN-Marx generator with a characteristic impedance of 31 Omega. The PFN-Marx generator applies -150 kV voltage pulses with a 170-200 ns pulse width into the vircator. The microwave power from the solid and annular cathodes is 11.22 MW and 11.27 MW, respectively. The proposed cathode generates a microwave with a power of 12.65 MW while enhancing the microwave power by 13% compared with the solid and annular cathodes. The proposed cathode shows a frequency shift to 3.4 GHz, which is a much lower frequency than that of the solid cathode at 6.34 GHz. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | Korean Institute of Electromagnetic Engineering and Science | - |
dc.title | Investigation of an Axial Virtual Cathode Oscillator with an Open-Ended Coaxial Cathode | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Ko, Kwang-Cheol | - |
dc.identifier.doi | 10.26866/jees.2022.3.r.86 | - |
dc.identifier.scopusid | 2-s2.0-85131915878 | - |
dc.identifier.wosid | 000813304800012 | - |
dc.identifier.bibliographicCitation | Journal of Electromagnetic Engineering and Science, v.22, no.3, pp.265 - 271 | - |
dc.relation.isPartOf | Journal of Electromagnetic Engineering and Science | - |
dc.citation.title | Journal of Electromagnetic Engineering and Science | - |
dc.citation.volume | 22 | - |
dc.citation.number | 3 | - |
dc.citation.startPage | 265 | - |
dc.citation.endPage | 271 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.identifier.kciid | ART002847019 | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | Y | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.description.journalRegisteredClass | kci | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalWebOfScienceCategory | Engineering, Electrical & Electronic | - |
dc.subject.keywordPlus | VIRCATOR | - |
dc.subject.keywordAuthor | High-power microwave device | - |
dc.subject.keywordAuthor | Open-ended coaxial cathode | - |
dc.subject.keywordAuthor | Pfn-marx generator | - |
dc.subject.keywordAuthor | Vacuum microwave electronics | - |
dc.subject.keywordAuthor | Vircator | - |
dc.subject.keywordAuthor | Virtual cathode oscillator | - |
dc.identifier.url | http://jees.kr/journal/view.php?doi=10.26866/jees.2022.3.r.86 | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
222, Wangsimni-ro, Seongdong-gu, Seoul, 04763, Korea+82-2-2220-1365
COPYRIGHT © 2021 HANYANG UNIVERSITY.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.