Open AccessA low‐loss Ka‐band waveguide to substrate integrated waveguide transition based on ridged stepped‐impedance transformer
Author(s) -
García Pérez J. A.,
Goussetis G.,
Fan H.,
Ding Y.
Publication year - 2021
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/ell2.12223
Subject(s) - ka band , return loss , waveguide , insertion loss , materials science , transformer , electrical impedance , optics , optoelectronics , frequency band , electrical engineering , engineering , physics , voltage , antenna (radio)
A low‐loss Ka‐band transition from waveguide to substrate integrated waveguide (SIW) is presented based on ridge waveguide stepped‐impedance transformer. This novel transition can operate across a full Ka‐band (26.5 to 40 GHz) with an insertion loss lower than 0.59 dB and return loss over 14.2 dB. Furthermore, compared to existing transitions the introduction of ridges reduces the metal usage, resulting in weight reduction and offering an encouraging application for weight‐sensitive satellite communications (SatComs).