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CPW- and MSL-to-RWG TE20 Mode Transitions.

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Title: CPW- and MSL-to-RWG TE20 Mode Transitions.
Authors: Cheng, Yueh-Hsien1, Wang, Chun-Long1 clw@mail.ntust.edu.tw
Source: Progress in Electromagnetics Research C. 2025, Vol. 162, p188-193. 6p.
Subjects: Coplanar waveguides, Rectangular waveguides, Microstrip transmission lines, Reflectance, Bandwidths, Theory of wave motion
Abstract: In this paper, a coplanar waveguide-to-rectangular waveguide TE20 mode transition using an antisymmetric tapered probe is proposed. The transmission coefficient of the TE20 mode is nearly 0 dB, and the reflection coefficient of the coplanar waveguide mode is smaller than -10 dB from 13.48 GHz to 14.7 GHz. In this frequency range, the transmission coefficient of the TE10 mode is smaller than -20 dB while the reflection coefficient of the coupled slotline mode is smaller than -19 dB. Besides, a microstrip line-to-rectangular waveguide TE20 mode transition using an antisymmetric fork is proposed. The transmission coefficient of the TE20 mode is nearly 0 dB, and the reflection coefficient of the microstrip line mode is smaller than -10 dB from 13.34 GHz to 15 GHz. In this frequency range, the transmission coefficient of the TE10 mode is smaller than -20 dB. To verify the simulation results, the coplanar waveguide-to-rectangular waveguide TE20 transition and the microstrip line-to-rectangular waveguide TE20 mode transition are back-to-back fabricated and measured, with the measurement results agreeing well with the simulation ones. [ABSTRACT FROM AUTHOR]
Copyright of Progress in Electromagnetics Research C is the property of Electromagnetics Academy and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: CPW- and MSL-to-RWG TE<subscript>20</subscript> Mode Transitions.
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  Data: <searchLink fieldCode="AR" term="%22Cheng%2C+Yueh-Hsien%22">Cheng, Yueh-Hsien</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Wang%2C+Chun-Long%22">Wang, Chun-Long</searchLink><relatesTo>1</relatesTo><i> clw@mail.ntust.edu.tw</i>
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  Data: <searchLink fieldCode="JN" term="%22Progress+in+Electromagnetics+Research+C%22">Progress in Electromagnetics Research C</searchLink>. 2025, Vol. 162, p188-193. 6p.
– Name: Subject
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  Data: <searchLink fieldCode="DE" term="%22Coplanar+waveguides%22">Coplanar waveguides</searchLink><br /><searchLink fieldCode="DE" term="%22Rectangular+waveguides%22">Rectangular waveguides</searchLink><br /><searchLink fieldCode="DE" term="%22Microstrip+transmission+lines%22">Microstrip transmission lines</searchLink><br /><searchLink fieldCode="DE" term="%22Reflectance%22">Reflectance</searchLink><br /><searchLink fieldCode="DE" term="%22Bandwidths%22">Bandwidths</searchLink><br /><searchLink fieldCode="DE" term="%22Theory+of+wave+motion%22">Theory of wave motion</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: In this paper, a coplanar waveguide-to-rectangular waveguide TE20 mode transition using an antisymmetric tapered probe is proposed. The transmission coefficient of the TE20 mode is nearly 0 dB, and the reflection coefficient of the coplanar waveguide mode is smaller than -10 dB from 13.48 GHz to 14.7 GHz. In this frequency range, the transmission coefficient of the TE10 mode is smaller than -20 dB while the reflection coefficient of the coupled slotline mode is smaller than -19 dB. Besides, a microstrip line-to-rectangular waveguide TE20 mode transition using an antisymmetric fork is proposed. The transmission coefficient of the TE20 mode is nearly 0 dB, and the reflection coefficient of the microstrip line mode is smaller than -10 dB from 13.34 GHz to 15 GHz. In this frequency range, the transmission coefficient of the TE10 mode is smaller than -20 dB. To verify the simulation results, the coplanar waveguide-to-rectangular waveguide TE20 transition and the microstrip line-to-rectangular waveguide TE20 mode transition are back-to-back fabricated and measured, with the measurement results agreeing well with the simulation ones. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Progress in Electromagnetics Research C is the property of Electromagnetics Academy and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.2528/PIERC25101003
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      – Code: eng
        Text: English
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        PageCount: 6
        StartPage: 188
    Subjects:
      – SubjectFull: Coplanar waveguides
        Type: general
      – SubjectFull: Rectangular waveguides
        Type: general
      – SubjectFull: Microstrip transmission lines
        Type: general
      – SubjectFull: Reflectance
        Type: general
      – SubjectFull: Bandwidths
        Type: general
      – SubjectFull: Theory of wave motion
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      – TitleFull: CPW- and MSL-to-RWG TE20 Mode Transitions.
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            NameFull: Wang, Chun-Long
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            – D: 01
              M: 12
              Text: 2025
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              Y: 2025
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            – TitleFull: Progress in Electromagnetics Research C
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