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DC Field | Value | Language |
---|---|---|
dc.citation.endPage | 4341 | - |
dc.citation.number | 7 | - |
dc.citation.startPage | 4336 | - |
dc.citation.title | IEEE TRANSACTIONS ON ELECTRON DEVICES | - |
dc.citation.volume | 71 | - |
dc.contributor.author | Choi, Hong Eun | - |
dc.contributor.author | Choi, Wonjin | - |
dc.contributor.author | Lee, Junyoung | - |
dc.contributor.author | Choi, EunMi | - |
dc.date.accessioned | 2024-08-05T09:35:11Z | - |
dc.date.available | 2024-08-05T09:35:11Z | - |
dc.date.created | 2024-08-02 | - |
dc.date.issued | 2024-07 | - |
dc.description.abstract | A multibeam-based traveling wave tube (TWT) system aims to concurrently amplify multiple RF sources with a compact size. However, the practical implementation of this multibeam-based TWT system encounters a challenge as the electron beam traverses a radial magnetic field. The most noticeable effect of this radial magnetic field is a consequential shift in the beam center position. This leads to a degradation in the transmission characteristics of the electron beam within the interaction circuit, consequently yielding a diminished efficiency for the TWT amplifier. In addition, the radial magnetic field worsens the quality of the electron beam, resulting in increased emittance and a decreased axial velocity. In this article, we undertake an investigation and development of a dual beam-based TWT system designed for operation within the 81-87 GHz frequency range. Notably, due to experimental constraints, only one cathode was available for the experiment. The experimentally achieved performance of this dual beam-based TWT includes an output power of 1047 mW at 81.5 GHz, with a corresponding gain of 13.39 dB. Furthermore, the impact of the radial magnetic field on the electron beam is explored through the CST particle-in-cell (PIC) simulations. Our findings contribute to a better understanding of the challenges posed by the radial magnetic field, providing insights that can guide the optimization of multibeam TWT systems. | - |
dc.identifier.bibliographicCitation | IEEE TRANSACTIONS ON ELECTRON DEVICES, v.71, no.7, pp.4336 - 4341 | - |
dc.identifier.doi | 10.1109/TED.2024.3405398 | - |
dc.identifier.issn | 0018-9383 | - |
dc.identifier.scopusid | 2-s2.0-85195366458 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/83393 | - |
dc.identifier.wosid | 001241534100001 | - |
dc.language | 영어 | - |
dc.publisher | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | - |
dc.title | Experimental Investigation of a Dual-Beam Traveling Wave Tube | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Engineering, Electrical & Electronic; Physics, Applied | - |
dc.relation.journalResearchArea | Engineering; Physics | - |
dc.type.docType | Article; Early Access | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | Electron guns | - |
dc.subject.keywordAuthor | Gain | - |
dc.subject.keywordAuthor | Magnetic tunneling | - |
dc.subject.keywordAuthor | Electrons | - |
dc.subject.keywordAuthor | Dispersion | - |
dc.subject.keywordAuthor | multibeam | - |
dc.subject.keywordAuthor | traveling wave tubes (TWTs) | - |
dc.subject.keywordAuthor | Magnetic fields | - |
dc.subject.keywordAuthor | Electron beams | - |
dc.subject.keywordPlus | ELECTRON OPTICS SYSTEM | - |
dc.subject.keywordPlus | DESIGN | - |
dc.subject.keywordPlus | TWT | - |
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