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A new type of the air‐filled substrate integrated gap waveguide resonator
Author(s) -
Shu Minjie,
Wu Zixian,
Cheng Zhaoliang,
Yang Qian,
Chen Jianzhong,
Zhang Anxue
Publication year - 2020
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/mmce.22228
Subject(s) - resonator , helical resonator , dielectric resonator antenna , waveguide , substrate (aquarium) , waveguide filter , materials science , filter (signal processing) , optics , optoelectronics , physics , electrical engineering , engineering , filter design , prototype filter , oceanography , geology
This article presents the design and analysis of an air‐filled substrate integrated gap waveguide (ASIGW) resonator. The electromagnetic field of each resonant mode in the resonator is studied by theoretical modeling and EM simulation. Besides, the relationship between the dimensions and Q u is analyzed and the Q u of the resonator can be as high as 2080 at Ku band. Compared with conventional rectangular waveguide resonator and gap waveguide (GW) resonator, the proposed ASIGW resonator can be fabricated more easily. Compared with the substrate integrated waveguide resonator, the ASIGW resonator is more tolerant with dimensional errors and with less degenerate modes. As an example, a fifth‐order band‐pass filter based on the ASIGW resonators is presented to verify the previous conclusions.