A ridge-loaded staggered double-vane slow wave structure for terahertz radiation sources
Abstract A ridge-loaded staggered double-vane slow-wave structure is proposed for terahertz radiation sources employing a sheet electron beam. This slow-wave structure has the advantages of enhanced electric field and energy density distribution and improved interaction impedance in the beam-wave in...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2024-12-01
|
| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-024-82796-8 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850086613584969728 |
|---|---|
| author | Jibran Latif Zhanliang Wang Atif Jameel Bilawal Ali Muhammad Khawar Nadeem Yubin Gong |
| author_facet | Jibran Latif Zhanliang Wang Atif Jameel Bilawal Ali Muhammad Khawar Nadeem Yubin Gong |
| author_sort | Jibran Latif |
| collection | DOAJ |
| description | Abstract A ridge-loaded staggered double-vane slow-wave structure is proposed for terahertz radiation sources employing a sheet electron beam. This slow-wave structure has the advantages of enhanced electric field and energy density distribution and improved interaction impedance in the beam-wave interaction region. High-frequency characteristics are investigated for the proposed slow wave structure and compared with those of the staggered double-vane slow wave structure. The slow wave structure is fabricated and experimentally tested for transmission and reflection properties, revealing $$S_{21}$$ above -2 dB and $$S_{11}$$ below -17 dB at 0.34 THz for a backward wave oscillator. Steady transmission of the 21.7 kV sheet electron beam is achieved by designing a periodic cusped magnetic system (0.2 T) along with a sheet electron beam gun (50 mA). Beam-wave interaction simulations utilizing 100 periods demonstrate a peak power of 14 W and continuous frequency tuning from 0.295-0.375 THz for the proposed slow wave structure, whereas the staggered double-vane slow wave structure achieves 8.5 W peak power and frequency tuning from 0.308-0.366 THz. The sensitivity of the output power to the added ridge geometry is also analyzed. These findings indicate that the novel ridge-loaded staggered double vane slow-wave structure is promising for developing high-power broad frequency tunable terahertz radiation sources. |
| format | Article |
| id | doaj-art-4ddf6f538fe44c879daa739c057d641d |
| institution | DOAJ |
| issn | 2045-2322 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-4ddf6f538fe44c879daa739c057d641d2025-08-20T02:43:25ZengNature PortfolioScientific Reports2045-23222024-12-0114111210.1038/s41598-024-82796-8A ridge-loaded staggered double-vane slow wave structure for terahertz radiation sourcesJibran Latif0Zhanliang Wang1Atif Jameel2Bilawal Ali3Muhammad Khawar Nadeem4Yubin Gong5School of Electronic Science and Engineering, University of Electronic Science and Technology of ChinaSchool of Electronic Science and Engineering, University of Electronic Science and Technology of ChinaSchool of Electronic Science and Engineering, University of Electronic Science and Technology of ChinaSchool of Electronic Science and Engineering, University of Electronic Science and Technology of ChinaSchool of Electronic Science and Engineering, University of Electronic Science and Technology of ChinaSchool of Electronic Science and Engineering, University of Electronic Science and Technology of ChinaAbstract A ridge-loaded staggered double-vane slow-wave structure is proposed for terahertz radiation sources employing a sheet electron beam. This slow-wave structure has the advantages of enhanced electric field and energy density distribution and improved interaction impedance in the beam-wave interaction region. High-frequency characteristics are investigated for the proposed slow wave structure and compared with those of the staggered double-vane slow wave structure. The slow wave structure is fabricated and experimentally tested for transmission and reflection properties, revealing $$S_{21}$$ above -2 dB and $$S_{11}$$ below -17 dB at 0.34 THz for a backward wave oscillator. Steady transmission of the 21.7 kV sheet electron beam is achieved by designing a periodic cusped magnetic system (0.2 T) along with a sheet electron beam gun (50 mA). Beam-wave interaction simulations utilizing 100 periods demonstrate a peak power of 14 W and continuous frequency tuning from 0.295-0.375 THz for the proposed slow wave structure, whereas the staggered double-vane slow wave structure achieves 8.5 W peak power and frequency tuning from 0.308-0.366 THz. The sensitivity of the output power to the added ridge geometry is also analyzed. These findings indicate that the novel ridge-loaded staggered double vane slow-wave structure is promising for developing high-power broad frequency tunable terahertz radiation sources.https://doi.org/10.1038/s41598-024-82796-8 |
| spellingShingle | Jibran Latif Zhanliang Wang Atif Jameel Bilawal Ali Muhammad Khawar Nadeem Yubin Gong A ridge-loaded staggered double-vane slow wave structure for terahertz radiation sources Scientific Reports |
| title | A ridge-loaded staggered double-vane slow wave structure for terahertz radiation sources |
| title_full | A ridge-loaded staggered double-vane slow wave structure for terahertz radiation sources |
| title_fullStr | A ridge-loaded staggered double-vane slow wave structure for terahertz radiation sources |
| title_full_unstemmed | A ridge-loaded staggered double-vane slow wave structure for terahertz radiation sources |
| title_short | A ridge-loaded staggered double-vane slow wave structure for terahertz radiation sources |
| title_sort | ridge loaded staggered double vane slow wave structure for terahertz radiation sources |
| url | https://doi.org/10.1038/s41598-024-82796-8 |
| work_keys_str_mv | AT jibranlatif aridgeloadedstaggereddoublevaneslowwavestructureforterahertzradiationsources AT zhanliangwang aridgeloadedstaggereddoublevaneslowwavestructureforterahertzradiationsources AT atifjameel aridgeloadedstaggereddoublevaneslowwavestructureforterahertzradiationsources AT bilawalali aridgeloadedstaggereddoublevaneslowwavestructureforterahertzradiationsources AT muhammadkhawarnadeem aridgeloadedstaggereddoublevaneslowwavestructureforterahertzradiationsources AT yubingong aridgeloadedstaggereddoublevaneslowwavestructureforterahertzradiationsources AT jibranlatif ridgeloadedstaggereddoublevaneslowwavestructureforterahertzradiationsources AT zhanliangwang ridgeloadedstaggereddoublevaneslowwavestructureforterahertzradiationsources AT atifjameel ridgeloadedstaggereddoublevaneslowwavestructureforterahertzradiationsources AT bilawalali ridgeloadedstaggereddoublevaneslowwavestructureforterahertzradiationsources AT muhammadkhawarnadeem ridgeloadedstaggereddoublevaneslowwavestructureforterahertzradiationsources AT yubingong ridgeloadedstaggereddoublevaneslowwavestructureforterahertzradiationsources |