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Millimetre wave wideband low‐loss waveguide‐to‐substrate integrated waveguide transition
Author(s) -
Ross Aitken J.,
Hong Jiasheng
Publication year - 2017
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.30214
Subject(s) - wideband , waveguide , microwave , materials science , transformer , optics , extremely high frequency , millimetre wave , optoelectronics , frequency band , bandwidth (computing) , electrical engineering , engineering , physics , telecommunications , voltage
A wideband Ka‐band waveguide‐to‐substrate integrated waveguide transition is presented based on a multi‐section transformer approach. We designed our transition by successfully adapting multi‐section inhomogeneous waveguide transformer theory to match a substrate integrated waveguide feedline to a standard waveguide flange, which offers more degrees of freedom than current design methods in the state of the art. We subjected our transition to a simulated tolerance analysis and have found the transition to be robust when fabrication errors are considered. We validated these simulations by measuring a back‐to‐back waveguide‐to‐substrate integrated waveguide transition, where there is very good agreement between measured and simulated results. Moreover, an insertion loss of −0.48 dB was measured at the center frequency of the required operating range. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:10–12, 2017