Investigation on the broadband active filtering characteristics of plasma composited frequency selective surface structure
Abstract To address the demand for wideband, dynamically controllable filtering characteristics in radomes, a plasma composited frequency selective surface (PC-FSS) structure with broadband, active filtering properties is proposed and experimentally demonstrated. Initially, a broadband band-pass FSS...
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Nature Portfolio
2025-08-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-025-16085-3 |
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| author | Xinmin Han Shuangxin Wang Xiaolong Wei Jingang Zhao Yang Wei |
| author_facet | Xinmin Han Shuangxin Wang Xiaolong Wei Jingang Zhao Yang Wei |
| author_sort | Xinmin Han |
| collection | DOAJ |
| description | Abstract To address the demand for wideband, dynamically controllable filtering characteristics in radomes, a plasma composited frequency selective surface (PC-FSS) structure with broadband, active filtering properties is proposed and experimentally demonstrated. Initially, a broadband band-pass FSS was designed using a multilayer cascade method and integrated with inductively coupled plasma (ICP) to form the PC-FSS. The effects of various discharge conditions—including pressure, power, and ICP thickness—on the parameter distribution and filtering performance of the PC-FSS were investigated through experimental measurements. The results indicate that the filtering characteristics of the PC-FSS can be actively controlled across a wide frequency range by adjusting the discharge conditions. Furthermore, the PC-FSS exhibits strong polarization and angular stability. In its unexcited state, the PC-FSS functions as a broadband band-pass structure with a center frequency of 13.56 GHz and a -1 dB passband of 11.02 GHz (ranging from 8.05 to 19.07 GHz). When excited, the structure displays tunable band-pass and band-stop characteristics, which depend on the discharge conditions, thereby providing both switching and tuning functionalities. The active properties of the PC-FSS underscore its potential for applications in active stealth radome systems. |
| format | Article |
| id | doaj-art-e7afde5d06df40d794242d8e3dc91405 |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-e7afde5d06df40d794242d8e3dc914052025-08-20T03:43:57ZengNature PortfolioScientific Reports2045-23222025-08-0115111210.1038/s41598-025-16085-3Investigation on the broadband active filtering characteristics of plasma composited frequency selective surface structureXinmin Han0Shuangxin Wang1Xiaolong Wei2Jingang Zhao3Yang Wei4National Key Lab of Aerospace Power System and Plasma Technology, Air Force Engineering UniversityInformation Engineering School, Engineering University of PAPNational Key Lab of Aerospace Power System and Plasma Technology, Air Force Engineering UniversityNational Key Lab of Aerospace Power System and Plasma Technology, Air Force Engineering UniversityNational Key Lab of Aerospace Power System and Plasma Technology, Air Force Engineering UniversityAbstract To address the demand for wideband, dynamically controllable filtering characteristics in radomes, a plasma composited frequency selective surface (PC-FSS) structure with broadband, active filtering properties is proposed and experimentally demonstrated. Initially, a broadband band-pass FSS was designed using a multilayer cascade method and integrated with inductively coupled plasma (ICP) to form the PC-FSS. The effects of various discharge conditions—including pressure, power, and ICP thickness—on the parameter distribution and filtering performance of the PC-FSS were investigated through experimental measurements. The results indicate that the filtering characteristics of the PC-FSS can be actively controlled across a wide frequency range by adjusting the discharge conditions. Furthermore, the PC-FSS exhibits strong polarization and angular stability. In its unexcited state, the PC-FSS functions as a broadband band-pass structure with a center frequency of 13.56 GHz and a -1 dB passband of 11.02 GHz (ranging from 8.05 to 19.07 GHz). When excited, the structure displays tunable band-pass and band-stop characteristics, which depend on the discharge conditions, thereby providing both switching and tuning functionalities. The active properties of the PC-FSS underscore its potential for applications in active stealth radome systems.https://doi.org/10.1038/s41598-025-16085-3Inductively coupled plasmaFrequency selective surfaceActive controlBroadbandPassbandStopband |
| spellingShingle | Xinmin Han Shuangxin Wang Xiaolong Wei Jingang Zhao Yang Wei Investigation on the broadband active filtering characteristics of plasma composited frequency selective surface structure Scientific Reports Inductively coupled plasma Frequency selective surface Active control Broadband Passband Stopband |
| title | Investigation on the broadband active filtering characteristics of plasma composited frequency selective surface structure |
| title_full | Investigation on the broadband active filtering characteristics of plasma composited frequency selective surface structure |
| title_fullStr | Investigation on the broadband active filtering characteristics of plasma composited frequency selective surface structure |
| title_full_unstemmed | Investigation on the broadband active filtering characteristics of plasma composited frequency selective surface structure |
| title_short | Investigation on the broadband active filtering characteristics of plasma composited frequency selective surface structure |
| title_sort | investigation on the broadband active filtering characteristics of plasma composited frequency selective surface structure |
| topic | Inductively coupled plasma Frequency selective surface Active control Broadband Passband Stopband |
| url | https://doi.org/10.1038/s41598-025-16085-3 |
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