X-Band In-Line Coaxial-to-Groove Gap Waveguide Transition
A coaxial-to-groove gap waveguide transition is proposed for the first time, addressing the lack of similar designs in the state-of-the-art literature. An in-line configuration is adopted in case of stringent space requirements in groove gap waveguide systems. This device has no dielectric and makes...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-07-01
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| Series: | Electronics |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2079-9292/11/15/2361 |
| _version_ | 1797442440197570560 |
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| author | Riccardo Rossi Roberto Vincenti Gatti |
| author_facet | Riccardo Rossi Roberto Vincenti Gatti |
| author_sort | Riccardo Rossi |
| collection | DOAJ |
| description | A coaxial-to-groove gap waveguide transition is proposed for the first time, addressing the lack of similar designs in the state-of-the-art literature. An in-line configuration is adopted in case of stringent space requirements in groove gap waveguide systems. This device has no dielectric and makes use of a waveguide multi-step ridged section connected to the inner conductor of a coaxial line. Three versions are presented, covering progressively wider bandwidths depending on the number of employed steps. The three configurations achieve 20-dB return loss fractional bandwidths of 2.63%, 16.79%, and 38.08%, and 30-dB return loss fractional bandwidths of 0.84%, 10.63%, and 33.49%, with a simulated insertion loss always better than 0.05 dB when a realistic metal conductivity of 2 × 10 <sup>7</sup> S/m is assumed. A tolerance analysis on the most critical geometrical parameters is provided to assess the mechanical feasibility, preserving a remarkable performance at X band. |
| first_indexed | 2024-03-09T12:41:53Z |
| format | Article |
| id | doaj.art-781d8168d8114b66975165acb2bdde26 |
| institution | Directory Open Access Journal |
| issn | 2079-9292 |
| language | English |
| last_indexed | 2024-03-09T12:41:53Z |
| publishDate | 2022-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Electronics |
| spelling | doaj.art-781d8168d8114b66975165acb2bdde262023-11-30T22:17:18ZengMDPI AGElectronics2079-92922022-07-011115236110.3390/electronics11152361X-Band In-Line Coaxial-to-Groove Gap Waveguide TransitionRiccardo Rossi0Roberto Vincenti Gatti1Department of Engineering, University of Perugia, Via G. Duranti 93, 06125 Perugia, ItalyDepartment of Engineering, University of Perugia, Via G. Duranti 93, 06125 Perugia, ItalyA coaxial-to-groove gap waveguide transition is proposed for the first time, addressing the lack of similar designs in the state-of-the-art literature. An in-line configuration is adopted in case of stringent space requirements in groove gap waveguide systems. This device has no dielectric and makes use of a waveguide multi-step ridged section connected to the inner conductor of a coaxial line. Three versions are presented, covering progressively wider bandwidths depending on the number of employed steps. The three configurations achieve 20-dB return loss fractional bandwidths of 2.63%, 16.79%, and 38.08%, and 30-dB return loss fractional bandwidths of 0.84%, 10.63%, and 33.49%, with a simulated insertion loss always better than 0.05 dB when a realistic metal conductivity of 2 × 10 <sup>7</sup> S/m is assumed. A tolerance analysis on the most critical geometrical parameters is provided to assess the mechanical feasibility, preserving a remarkable performance at X band.https://www.mdpi.com/2079-9292/11/15/2361coaxial linegroove gap waveguidein-line transition |
| spellingShingle | Riccardo Rossi Roberto Vincenti Gatti X-Band In-Line Coaxial-to-Groove Gap Waveguide Transition Electronics coaxial line groove gap waveguide in-line transition |
| title | X-Band In-Line Coaxial-to-Groove Gap Waveguide Transition |
| title_full | X-Band In-Line Coaxial-to-Groove Gap Waveguide Transition |
| title_fullStr | X-Band In-Line Coaxial-to-Groove Gap Waveguide Transition |
| title_full_unstemmed | X-Band In-Line Coaxial-to-Groove Gap Waveguide Transition |
| title_short | X-Band In-Line Coaxial-to-Groove Gap Waveguide Transition |
| title_sort | x band in line coaxial to groove gap waveguide transition |
| topic | coaxial line groove gap waveguide in-line transition |
| url | https://www.mdpi.com/2079-9292/11/15/2361 |
| work_keys_str_mv | AT riccardorossi xbandinlinecoaxialtogroovegapwaveguidetransition AT robertovincentigatti xbandinlinecoaxialtogroovegapwaveguidetransition |