Millimeter-wave 3D printing metasurface filtering crossover based on a single groove gap waveguide cavity
A millimeter-wave (mm-wave) 3D-printing metasurface filtering crossover based on groove gap waveguide (GGW) structure is proposed in this letter. Firstly, the metasurface composed of electromagnetic bandgap elements in GGW technology is designed and analyzed. This configuration effectively mitigate...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-05-01
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| Series: | Materials & Design |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0264127525003247 |
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| author | Hongtao Gu Jinxuan Ni Xin Zhou Jingyi Zhang Gang Zhang Jiquan Yang |
| author_facet | Hongtao Gu Jinxuan Ni Xin Zhou Jingyi Zhang Gang Zhang Jiquan Yang |
| author_sort | Hongtao Gu |
| collection | DOAJ |
| description | A millimeter-wave (mm-wave) 3D-printing metasurface filtering crossover based on groove gap waveguide (GGW) structure is proposed in this letter. Firstly, the metasurface composed of electromagnetic bandgap elements in GGW technology is designed and analyzed. This configuration effectively mitigates radiation and electromagnetic wave leakage. The upper part of the GGW resonator features a groove structure with periodic pins distributed, while the lower part consists of a metal groove structure. Subsequently, by incorporating resonant irises, the device order and bandwidth are increased. Transmission zeros (TZ) is generated by cross-coupling between the GGW resonator and source. Furthermore, by adding an L-shaped capacitive stub at one end of each port, another TZ is created, further enhancing the frequency selectivity of the filtering crossover. To verify the design, a third-order filtering crossover operating in the Ka band is fabricated using 3D printing technology. The measured results show excellent agreement with the simulations. The final filtering crossover achieves a 3-dB fractional bandwidth of 4.8 %, a return loss better than 19.5 dB, and an in-band isolation greater than 32 dB. |
| format | Article |
| id | doaj-art-0f74974bde1b4f40b8330ec82d54cbcd |
| institution | Kabale University |
| issn | 0264-1275 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials & Design |
| spelling | doaj-art-0f74974bde1b4f40b8330ec82d54cbcd2025-08-20T03:55:22ZengElsevierMaterials & Design0264-12752025-05-0125311390410.1016/j.matdes.2025.113904Millimeter-wave 3D printing metasurface filtering crossover based on a single groove gap waveguide cavityHongtao Gu0Jinxuan Ni1Xin Zhou2Jingyi Zhang3Gang Zhang4Jiquan Yang5School of Electrical and Automation Engineering, Nanjing Normal University, Nanjing 210046, PR ChinaDepartment of Electrical and Computer Systems Engineering, Monash University, Clayton, Victoria, 3800, AustraliaSchool of Electrical and Automation Engineering, Nanjing Normal University, Nanjing 210046, PR China; Department of Electrical and Computer Engineering, Faculty of Science and Technology, University of Macau, Macao SAR, PR ChinaSchool of Electrical and Automation Engineering, Nanjing Normal University, Nanjing 210046, PR China; Corresponding author.School of Electrical and Automation Engineering, Nanjing Normal University, Nanjing 210046, PR ChinaSchool of Electrical and Automation Engineering, Nanjing Normal University, Nanjing 210046, PR ChinaA millimeter-wave (mm-wave) 3D-printing metasurface filtering crossover based on groove gap waveguide (GGW) structure is proposed in this letter. Firstly, the metasurface composed of electromagnetic bandgap elements in GGW technology is designed and analyzed. This configuration effectively mitigates radiation and electromagnetic wave leakage. The upper part of the GGW resonator features a groove structure with periodic pins distributed, while the lower part consists of a metal groove structure. Subsequently, by incorporating resonant irises, the device order and bandwidth are increased. Transmission zeros (TZ) is generated by cross-coupling between the GGW resonator and source. Furthermore, by adding an L-shaped capacitive stub at one end of each port, another TZ is created, further enhancing the frequency selectivity of the filtering crossover. To verify the design, a third-order filtering crossover operating in the Ka band is fabricated using 3D printing technology. The measured results show excellent agreement with the simulations. The final filtering crossover achieves a 3-dB fractional bandwidth of 4.8 %, a return loss better than 19.5 dB, and an in-band isolation greater than 32 dB.http://www.sciencedirect.com/science/article/pii/S0264127525003247Bandpass filter (BPF)Groove gap waveguide (GGW)CrossoverMetasurface3D printing |
| spellingShingle | Hongtao Gu Jinxuan Ni Xin Zhou Jingyi Zhang Gang Zhang Jiquan Yang Millimeter-wave 3D printing metasurface filtering crossover based on a single groove gap waveguide cavity Materials & Design Bandpass filter (BPF) Groove gap waveguide (GGW) Crossover Metasurface 3D printing |
| title | Millimeter-wave 3D printing metasurface filtering crossover based on a single groove gap waveguide cavity |
| title_full | Millimeter-wave 3D printing metasurface filtering crossover based on a single groove gap waveguide cavity |
| title_fullStr | Millimeter-wave 3D printing metasurface filtering crossover based on a single groove gap waveguide cavity |
| title_full_unstemmed | Millimeter-wave 3D printing metasurface filtering crossover based on a single groove gap waveguide cavity |
| title_short | Millimeter-wave 3D printing metasurface filtering crossover based on a single groove gap waveguide cavity |
| title_sort | millimeter wave 3d printing metasurface filtering crossover based on a single groove gap waveguide cavity |
| topic | Bandpass filter (BPF) Groove gap waveguide (GGW) Crossover Metasurface 3D printing |
| url | http://www.sciencedirect.com/science/article/pii/S0264127525003247 |
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