Oyedokun, TitusGeschke, Riana H.Stander, Tinus2020-05-272020-05Oyedokun T, Geschke RH, Stander T. Broadband mm-wave propagation charac-terization of planar groove gap waveguide. Microwave and Optical Technology Letters 2020;62:1871–1875. https://doi.org/10.1002/mop.32248.0895-2477 (print)1098-2760 (online)10.1002/mop.32248http://hdl.handle.net/2263/74756We present, experimental broadband propagation characterization of a planar groove gap waveguide (PGGWG) from 29 to 40 GHz. The transmission line Q‐factor is found to vary from 110 to 130 over the band, which is shown by comparison of measurement data to be comparable to substrate integrated waveguide (SIW). PGGWG is found to have a phase constant of nearly double that of SIW using the same materials and manufacturing process. This is a significant result for system miniaturization.en© 2020 Wiley Periodicals, Inc. This is the pre-peer reviewed version of the following article : Broadband mm-wave propagation charac-terization of planar groove gap waveguide. Microwave and Optical Technology Letters 2020;62:1871–1875. https://doi.org/10.1002/mop.32248. The definite version is available at : wileyonlinelibrary.com/journal/mop.Planar groove gap waveguide (PGGWG)Substrate integrated waveguide (SIW)Planar waveguideGroove gap waveguidePostprint Article