Open AccessBandpass filter using open/shorted dual‐behaviour resonators
Author(s) -
Feng Wenjie,
Che Wenquan
Publication year - 2014
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2013.4106
Subject(s) - band pass filter , resonator , dual (grammatical number) , electronic engineering , prototype filter , acoustics , filter (signal processing) , materials science , electronic filter topology , low pass filter , electrical engineering , engineering , physics , optoelectronics , art , literature
A novel bandpass filter with multiple transmission zeros using open/shorted dual‐behaviour resonators (DBRs) is proposed. Three transmission zeros on both sides of the bandpass responses can be easily realised. Three additional transmission zeros without bandstop/lowpass networks are used to suppress the second harmonic. A bandpass filter prototype with 15 dB rejection level in the upper stopband from 1.1 f 0 to 2.72 f 0 (3 dB fractional bandwidth 7.3%) has been designed and fabricated.