Propagation Characteristics of Groove Gap Waveguide Below and Above Cutoff

Antonio Berenguer, Vincent Fusco, Dmitry E. Zelenchuk, Daniel Sanchez-Escuderos, Mariano Baqueo-Escudero, Vicente E. Boria-Esbert

Research output: Contribution to journalArticlepeer-review

46 Citations (Scopus)
936 Downloads (Pure)


Recently, gap waveguides have been shown as a potential alternative to conventional waveguides in the millimeterwave band. Until now, Groove Gap Waveguide (GGW) has been studied through direct correspondence with rectangular waveguide with the same physical dimensions. However there have been observed differences in the above cutoff propagation characteristics between these two waveguide types. Furthermore, the behavior of GGW below cutoff remains unknown. This work presents a discussion of both below and above cutoff propagation characteristics of GGW, and introduces a simple model that explains the observed GGW behavior and establishes well its propagation characteristics. Two TRL calibration kits have been manufactured, and the measurements have good agreement with the proposed analysis model results.
Original languageEnglish
Pages (from-to)27-36
Number of pages10
JournalIEEE Transactions on Microwave Theory and Techniques
Issue number1
Early online date11 Dec 2015
Publication statusPublished - 01 Jan 2016


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