Empty Substrate Integrated Waveguide Coupler and Transition Structure to WR-3 Waveguide
This paper proposes a sub-THz Riblet coupler based on the empty substrate integrated waveguide (ESIW) and a transition structure between ESIW and a WR-3 rectangular waveguide. The ESIW is fabricated through laser engraving and electroplating processes. The transition is achieved simply by a rectangu...
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| Format: | Article |
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IEEE
2025-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/10909441/ |
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| author | Ching Li Yu-Hsiang Cheng |
| author_facet | Ching Li Yu-Hsiang Cheng |
| author_sort | Ching Li |
| collection | DOAJ |
| description | This paper proposes a sub-THz Riblet coupler based on the empty substrate integrated waveguide (ESIW) and a transition structure between ESIW and a WR-3 rectangular waveguide. The ESIW is fabricated through laser engraving and electroplating processes. The transition is achieved simply by a rectangular cavity and can be modeled by two coupled notch filters. The measured insertion loss of a single transition is 1.25 dB from 250 to 313 GHz. The amplitude imbalance of the coupler is about 2 dB and the phase difference is between 87 deg and 101 deg from 250 to 290 GHz. |
| format | Article |
| id | doaj-art-c63acaf8d5ba42eda1f41a9875c5d731 |
| institution | DOAJ |
| issn | 2169-3536 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj-art-c63acaf8d5ba42eda1f41a9875c5d7312025-08-20T02:56:39ZengIEEEIEEE Access2169-35362025-01-0113454684547210.1109/ACCESS.2025.354772910909441Empty Substrate Integrated Waveguide Coupler and Transition Structure to WR-3 WaveguideChing Li0Yu-Hsiang Cheng1https://orcid.org/0000-0001-9202-3338Graduate Institute of Communication Engineering, National Taiwan University, Taipei, TaiwanGraduate Institute of Communication Engineering, National Taiwan University, Taipei, TaiwanThis paper proposes a sub-THz Riblet coupler based on the empty substrate integrated waveguide (ESIW) and a transition structure between ESIW and a WR-3 rectangular waveguide. The ESIW is fabricated through laser engraving and electroplating processes. The transition is achieved simply by a rectangular cavity and can be modeled by two coupled notch filters. The measured insertion loss of a single transition is 1.25 dB from 250 to 313 GHz. The amplitude imbalance of the coupler is about 2 dB and the phase difference is between 87 deg and 101 deg from 250 to 290 GHz.https://ieeexplore.ieee.org/document/10909441/Empty substrate integrated waveguideRiblet couplerterahertztransition structure |
| spellingShingle | Ching Li Yu-Hsiang Cheng Empty Substrate Integrated Waveguide Coupler and Transition Structure to WR-3 Waveguide IEEE Access Empty substrate integrated waveguide Riblet coupler terahertz transition structure |
| title | Empty Substrate Integrated Waveguide Coupler and Transition Structure to WR-3 Waveguide |
| title_full | Empty Substrate Integrated Waveguide Coupler and Transition Structure to WR-3 Waveguide |
| title_fullStr | Empty Substrate Integrated Waveguide Coupler and Transition Structure to WR-3 Waveguide |
| title_full_unstemmed | Empty Substrate Integrated Waveguide Coupler and Transition Structure to WR-3 Waveguide |
| title_short | Empty Substrate Integrated Waveguide Coupler and Transition Structure to WR-3 Waveguide |
| title_sort | empty substrate integrated waveguide coupler and transition structure to wr 3 waveguide |
| topic | Empty substrate integrated waveguide Riblet coupler terahertz transition structure |
| url | https://ieeexplore.ieee.org/document/10909441/ |
| work_keys_str_mv | AT chingli emptysubstrateintegratedwaveguidecouplerandtransitionstructuretowr3waveguide AT yuhsiangcheng emptysubstrateintegratedwaveguidecouplerandtransitionstructuretowr3waveguide |