Open AccessBroadband right‐angle transition from substrate‐integrated waveguide to rectangular waveguide
Author(s) -
Li Teng,
Dou Wenbin
Publication year - 2014
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2014.1577
Subject(s) - return loss , broadband , waveguide , materials science , microwave , flange , insertion loss , optics , aperture (computer memory) , substrate (aquarium) , millimetre wave , extremely high frequency , optoelectronics , coupling (piping) , ka band , coupling loss , telecommunications , acoustics , engineering , physics , optical fiber , antenna (radio) , metallurgy , composite material , oceanography , geology
A broadband right‐angle transition from a substrate‐integrated waveguide (SIW) to a rectangular waveguide (RWG) is proposed. A coupling aperture etched on the broad wall of the SIW and two stepped ridges embedded in the RWG flange are designed for good matching between both waveguides. A Ka‐band prototype is designed and fabricated. Good agreement between the measured and simulated results is obtained. The measured results show an insertion loss <0.55 dB and a return loss below −15 dB from 31.3 to 38.35 GHz. This broadband transition may be used in microwave and millimetre‐wave circuits and systems.