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BALANCED TRIPLE-MODE MICROSTRIP BANDPASS FILTER BASED ON DOUBLE-SIDED PARALLEL-STRIP LINE
Author(s) -
Xiao-Bang Ji,
Qing Liu,
Yang Mi
Publication year - 2020
Publication title -
progress in electromagnetics research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.245
H-Index - 33
ISSN - 1937-6480
DOI - 10.2528/pierl20010403
Subject(s) - band pass filter , microstrip , filter (signal processing) , mode (computer interface) , line (geometry) , materials science , acoustics , electronic engineering , electrical engineering , physics , computer science , optics , engineering , mathematics , geometry , operating system
This letter proposes a novel balanced triple-mode microstrip bandpass filter based on a double-sided parallel-strip line resonator for the first time. The triple-mode resonator is realized by a stub-loaded structure. Stripline-like structure is employed to excite the triple-mode resonator under differential mode operation. Meanwhile, good common mode suppression can be achieved. For the demonstration, a balanced triple-mode microstrip filter was designed, fabricated, and measured.

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