Substrate integrated waveguide E-plane tapering in low-temperature co-fired ceramic

Jaakko Haarla (Corresponding Author), Juha Ala-Laurinaho, Markku Lahti, Ville Viikari

    Research output: Contribution to journalArticleScientificpeer-review

    1 Citation (Scopus)


    This letter discusses the design, manufacture, and characterization of a substrate-integrated waveguide E-plane tapering. The tapering facilitates the integration of two waveguides with varying heights for, that is, conductor-backed coplanar waveguide to rectangular waveguide integration. A simultaneous top- and bottom-sided, λ/4-based stepped tapering for the 71–86 GHz band is designed using low-temperature co-fired ceramic technology. The fabricated design is measured using two E-plane taperings in back-to-back configuration. The reflection coefficient better than −11.8 dB, and the transmission coefficient larger than −1.4 dB at the full 71–86-GHz range for a single tapering is extracted from the measurement using time-gating.
    Original languageEnglish
    Pages (from-to)1165-1170
    JournalMicrowave and Optical Technology Letters
    Issue number4
    Publication statusPublished - Apr 2021
    MoE publication typeA1 Journal article-refereed


    • E-band
    • low-temperature co-fired ceramic (LTCC)
    • substrate-integrated waveguide (SIW)


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