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Quasi‐lumped multimode stripline resonator and filter with good stopband performance
Author(s) -
Belyaev Boris Afanasievich,
Serzhantov Alexey Mikhailovich,
Leksikov Aleksandr Aleksandrovich,
Bal'va Yaroslav Fedorovich,
Leksikov Andrey Aleksandrovich
Publication year - 2020
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.32173
Subject(s) - stopband , resonator , passband , band pass filter , elliptic filter , transition band , materials science , stripline , helical resonator , optoelectronics , acoustics , electronic engineering , filter (signal processing) , optics , prototype filter , physics , low pass filter , engineering , electrical engineering
A novel multimode resonator is proposed, containing five resonant modes that are incorporated in the passband forming. The structure is based on a dielectric substrate suspended in a metallic case that allows solving the problem of electromagnetic compatibility. Due to features of the resonator's structure, several higher modes do not excite that significantly improves the performance of the filter's stopband. The resonator advantages are proved on the bandpass filter (3.1…10.6 GHz) with a small overall size (0.19λ 0 × 0.11λ 0 × 0.11λ 0 ) and a good stopband performance (first spurious band locates at 29 GHz and suppression is 70 dB).