A Windmill-Shaped SSPP Waveguide for High-Efficiency Microwave and Terahertz Propagation
We propose a novel type of spoof surface plasmon polariton (SSPP) waveguide based on windmill-shaped units for high-efficiency microwave and terahertz propagation. The dependence of terahertz dispersion characteristics on geometrical parameters of the proposed waveguide is detailed and investigated....
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-04-01
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| Series: | Electronics |
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| Online Access: | https://www.mdpi.com/2079-9292/11/9/1293 |
| _version_ | 1797505282937454592 |
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| author | Zhihui Wang Hao Feng Xiaofan Yang Xiong Xu Yunxing Zheng Longfang Ye |
| author_facet | Zhihui Wang Hao Feng Xiaofan Yang Xiong Xu Yunxing Zheng Longfang Ye |
| author_sort | Zhihui Wang |
| collection | DOAJ |
| description | We propose a novel type of spoof surface plasmon polariton (SSPP) waveguide based on windmill-shaped units for high-efficiency microwave and terahertz propagation. The dependence of terahertz dispersion characteristics on geometrical parameters of the proposed waveguide is detailed and investigated. Compared with the conventional comb-shaped and T-shaped SSPP waveguide units, the proposed windmill-shaped unit shows a lower asymptotic frequency and stronger field-confinement characteristics for the supported fundamental SSPP mode. To demonstrate the properties of the windmill-shaped SSPP waveguide, a tapered conversion is designed to connect the windmill-shaped SSPP waveguide and the microstrip for smooth momentum and impedance matching. The simulated results show that the whole waveguide has excellent transmission performance with S11 < −10 dB and S21 > −1 dB from 0 THz to 5.68 THz, as well as a large out-of-band rejection response (S21 < −80 dB). Then, a scaled microwave windmill-shaped waveguide prototype is fabricated and measured. The numerical and experimental results are in good agreement, which further validates the proposed SSPP waveguide design. The proposed waveguide has excellent microwave and terahertz propagation and rejection characteristics, which may have great potential applications in various microwave and terahertz devices and circuits. |
| first_indexed | 2024-03-10T04:16:24Z |
| format | Article |
| id | doaj.art-cefeb3adbf174335b269fdf294aed2aa |
| institution | Directory Open Access Journal |
| issn | 2079-9292 |
| language | English |
| last_indexed | 2024-03-10T04:16:24Z |
| publishDate | 2022-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Electronics |
| spelling | doaj.art-cefeb3adbf174335b269fdf294aed2aa2023-11-23T08:01:32ZengMDPI AGElectronics2079-92922022-04-01119129310.3390/electronics11091293A Windmill-Shaped SSPP Waveguide for High-Efficiency Microwave and Terahertz PropagationZhihui Wang0Hao Feng1Xiaofan Yang2Xiong Xu3Yunxing Zheng4Longfang Ye5Southwest China Institute of Electronic Technology, Chengdu 610036, ChinaInstitute of Electromagnetics and Acoustics, Xiamen University, Xiamen 361005, ChinaState Key Laboratory of Complex Electromagnetic Environment Effects on Electronics and Information System, Luoyang 471003, ChinaState Key Laboratory of Complex Electromagnetic Environment Effects on Electronics and Information System, Luoyang 471003, ChinaInstitute of Electromagnetics and Acoustics, Xiamen University, Xiamen 361005, ChinaInstitute of Electromagnetics and Acoustics, Xiamen University, Xiamen 361005, ChinaWe propose a novel type of spoof surface plasmon polariton (SSPP) waveguide based on windmill-shaped units for high-efficiency microwave and terahertz propagation. The dependence of terahertz dispersion characteristics on geometrical parameters of the proposed waveguide is detailed and investigated. Compared with the conventional comb-shaped and T-shaped SSPP waveguide units, the proposed windmill-shaped unit shows a lower asymptotic frequency and stronger field-confinement characteristics for the supported fundamental SSPP mode. To demonstrate the properties of the windmill-shaped SSPP waveguide, a tapered conversion is designed to connect the windmill-shaped SSPP waveguide and the microstrip for smooth momentum and impedance matching. The simulated results show that the whole waveguide has excellent transmission performance with S11 < −10 dB and S21 > −1 dB from 0 THz to 5.68 THz, as well as a large out-of-band rejection response (S21 < −80 dB). Then, a scaled microwave windmill-shaped waveguide prototype is fabricated and measured. The numerical and experimental results are in good agreement, which further validates the proposed SSPP waveguide design. The proposed waveguide has excellent microwave and terahertz propagation and rejection characteristics, which may have great potential applications in various microwave and terahertz devices and circuits.https://www.mdpi.com/2079-9292/11/9/1293spoof surface plasmon polaritons (SSPPs)windmill-shaped unitdispersion relationfield confinement |
| spellingShingle | Zhihui Wang Hao Feng Xiaofan Yang Xiong Xu Yunxing Zheng Longfang Ye A Windmill-Shaped SSPP Waveguide for High-Efficiency Microwave and Terahertz Propagation Electronics spoof surface plasmon polaritons (SSPPs) windmill-shaped unit dispersion relation field confinement |
| title | A Windmill-Shaped SSPP Waveguide for High-Efficiency Microwave and Terahertz Propagation |
| title_full | A Windmill-Shaped SSPP Waveguide for High-Efficiency Microwave and Terahertz Propagation |
| title_fullStr | A Windmill-Shaped SSPP Waveguide for High-Efficiency Microwave and Terahertz Propagation |
| title_full_unstemmed | A Windmill-Shaped SSPP Waveguide for High-Efficiency Microwave and Terahertz Propagation |
| title_short | A Windmill-Shaped SSPP Waveguide for High-Efficiency Microwave and Terahertz Propagation |
| title_sort | windmill shaped sspp waveguide for high efficiency microwave and terahertz propagation |
| topic | spoof surface plasmon polaritons (SSPPs) windmill-shaped unit dispersion relation field confinement |
| url | https://www.mdpi.com/2079-9292/11/9/1293 |
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