Open AccessKa‐band compact and high‐performance bandpass filter based on multilayer air‐filled SIW
Author(s) -
Parment F.,
Ghiotto A.,
Vuong T.P.,
Duchamp J.M.,
Wu K.
Publication year - 2017
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.2016.4399
Subject(s) - band pass filter , footprint , dielectric , fabrication , materials science , insertion loss , substrate (aquarium) , electronic engineering , filter (signal processing) , waveguide , optoelectronics , electronic circuit , electrical engineering , engineering , medicine , paleontology , oceanography , alternative medicine , pathology , biology , geology
A substantial reduction of substrate integrated waveguide (SIW) insertion loss can be achieved through the use of air as dielectric instead of usual dielectric material. However, air‐filled SIW (AFSIW) circuits exhibit larger footprint compared with their dielectric‐filled counterparts. A compact multilayer AFSIW bandpass lter is proposed to realise both high‐performance and small footprint. For demonstration purpose, a Ka‐band multilayer fourth‐order AFSIW bandpass filter has been designed and fabricated. Measured and simulated results are in good agreement. Retro‐simulations, taking into account fabrication tolerances, are also presented. Finally, a performance comparison with other multilayer technologies is presented.