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UWB bandpass filter with quad notched bands
Author(s) -
Sung Y. J.
Publication year - 2014
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.28573
Subject(s) - band pass filter , resonator , notching , center frequency , materials science , microwave , insertion loss , return loss , filter (signal processing) , acoustics , optoelectronics , electronic engineering , optics , physics , electrical engineering , telecommunications , engineering , antenna (radio) , metallurgy
A novel ultrawideband (UWB) bandpass filter (BPF) with a quad band‐notched function is investigated using a modified H‐shaped resonator. The proposed H‐shaped resonator, which exhibits quadruple resonance characteristics, is realized without any change in its overall size by modifying the simplified composite right/left‐handed resonator exhibiting dual resonance characteristics. The proposed resonator is integrated into a conventional UWB BPF. The notching frequencies are located at 2.41, 3.42, 5.3, and 5.9 GHz, and the attenuations at the center frequency of the four notched bands are at least 13 dB. The proposed UWB BPF has the advantages of compact size, low insertion loss, good selectivity, and flat delays. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:2286–2289, 2014
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