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A new design method of microstrip dual‐band bandstop filters
Author(s) -
Kikuchi Katsunori,
Ma Zhewang,
Anada Tetsuo
Publication year - 2008
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.23822
Subject(s) - microstrip , microwave , band stop filter , electronic engineering , center frequency , multi band device , engineering , resonator , prototype filter , filter (signal processing) , band pass filter , topology (electrical circuits) , electrical engineering , filter design , low pass filter , telecommunications , antenna (radio)
A generic lumped‐element circuit of dual‐band bandstop filter (DBBSF) is proposed based on novel composite shunt resonators, and its design method is developed with closed‐form formulas. As an example, a DBBSF with center frequencies of 1.7 and 2.3 GHz is designed and fabricated using microstrip lines. The measured frequency response agrees excellently with the theoretical predictions, validating well the proposed design theory and filter structure. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 2888–2892, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23822