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A Design Approach for Tapered Waveguide to Substrate-Integrated Waveguide Transitions
Publikationstyp
Journal Article
Date Issued
2016-08
Sprache
English
Author(s)
Institut
TORE-URI
Volume
64
Issue
8
Start Page
2502
End Page
2510
Article Number
7508883
Citation
IEEE Transactions on Microwave Theory and Techniques 8 (64): 7508883 (2016-08)
Publisher DOI
Scopus ID
A design approach for substrate-integrated waveguide (SIW) to rectangular waveguide (RWG) transitions based on the synthesis of antipodal finline tapers is proposed. The taper is designed using a reflection-based impedance definition as no suitable model is available for antipodal finlines. The characteristics of the finline are determined from full-wave simulation. To demonstrate the proposed method, two SIW-to-RWG transitions are designed and characterized at the K-band. The measured back-to-back transitions exhibit a return loss above 15 dB and an insertion loss below 1 dB between 16.7 and 20.5 GHz and between 21.1 and more than 31 GHz, respectively. A good agreement between the synthesis model and full-wave simulation of the taper on one hand and between simulation and measurements of back-to-back transitions on the other hand is demonstrated.
Subjects
Finline-based components
passive circuits
planar-to-waveguide transitions
substrate-integrated waveguide (SIW)