• Infrared and Laser Engineering
  • Vol. 49, Issue 6, 20190566 (2020)
Wang Xudong1、2、*, Lv Xin1, and Cheng Gong1
Author Affiliations
  • 1[in Chinese]
  • 2[in Chinese]
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    DOI: 10.3788/irla20190566 Cite this Article
    Wang Xudong, Lv Xin, Cheng Gong. Terahertz vertical transition structure based on coupling cavity[J]. Infrared and Laser Engineering, 2020, 49(6): 20190566 Copy Citation Text show less
    General vertical transition structure
    Fig. 1. General vertical transition structure
    Designed structure of the vertical transition
    Fig. 2. Designed structure of the vertical transition
    Electric-field distribution of mode-transition unit
    Fig. 3. Electric-field distribution of mode-transition unit
    Optimization of vertical transition unit
    Fig. 4. Optimization of vertical transition unit
    Photograph of the assembled structure and the fabricated mode-transition unit
    Fig. 5. Photograph of the assembled structure and the fabricated mode-transition unit
    Proposed fin-line structure
    Fig. 6. Proposed fin-line structure
    S parameters of mode-transition unit
    Fig. 7. S parameters of mode-transition unit
    ParametersValue/mmParametersValue/mm
    a4We1
    b4Wl2
    c2.1Ws0.4
    d0.102Dh0.1
    Wt2Lh0.15
    Lt3.2Lb2
    Wb1
    Table 1. Parameters of vertical transition unit
    ReferenceReturn loss/dBBand width/GHzInsertion loss/dB
    [9] −1555-65−1
    [10] −1059-62−1.79
    This work−10105-115−1.3
    Table 2. Performance comparisons
    Wang Xudong, Lv Xin, Cheng Gong. Terahertz vertical transition structure based on coupling cavity[J]. Infrared and Laser Engineering, 2020, 49(6): 20190566
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