CAPACITIVE LOADED U-SLOT DEFECTED GROUND STRUCTURE FOR BANDSTOP FILTER WITH IMPROVEMENT Q FACTOR | Zendy

Gang Liu | Zendy; Zhuoying Wang | Zendy; Jiajia Wu | Zendy; Lin Li | Zendy

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CAPACITIVE LOADED U-SLOT DEFECTED GROUND STRUCTURE FOR BANDSTOP FILTER WITH IMPROVEMENT Q FACTOR

Author(s) -

Gang Liu,

Zhuoying Wang,

Jiajia Wu,

Lin Li

Publication year - 2017

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/pierl16111002

Subject(s) - capacitive sensing , band stop filter , materials science , filter (signal processing) , engineering , electrical engineering , low pass filter

A novel capacitive loaded U-slot defected ground structure (DGS) is presented in this letter to provide narrowband rejection property. The principles for the selective rejection and the strategies for size-reduction and external Q-factor improvement are detailed based on transmission line equivalent model and the lumped parallel RLC model developed from transmission line model at resonance frequency. The design concept is well validated by the design and measurement of an exemplary high Q BSF.

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