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Substrate integrated waveguide E‐plane tapering in low‐temperature co‐fired ceramic
Author(s) -
Haarla Jaakko,
AlaLaurinaho Juha,
Lahti Markku,
Viikari Ville
Publication year - 2021
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.32740
Subject(s) - tapering , materials science , conductor , waveguide , substrate (aquarium) , reflection coefficient , ceramic , optics , reflection (computer programming) , transmission coefficient , optoelectronics , electrical engineering , transmission (telecommunications) , engineering , composite material , computer science , physics , programming language , oceanography , computer graphics (images) , geology
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.