Open AccessCompact eighth‐mode ridged substrate integrated waveguide filter
Author(s) -
Liu Liguo,
Huang Liwen
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/ell2.12326
Subject(s) - resonator , waveguide , band pass filter , waveguide filter , substrate (aquarium) , filter (signal processing) , mode (computer interface) , optics , materials science , helical resonator , optoelectronics , transmission (telecommunications) , dielectric resonator antenna , acoustics , physics , electrical engineering , engineering , computer science , prototype filter , low pass filter , geology , oceanography , operating system
In this letter, a novel eighth‐mode ridged substrate integrated waveguide (EMRSIW) is proposed by bisecting the RSIW resonator along the virtual magnetic walls. The EMRSIW shows a size of nearly one‐eighth of a conventional RSIW resonator and a significant size reduction compared to the conventional eighth‐mode SIW resonator. A prototype of a third‐order bandpass filter with transmission zeros has been designed and tested.