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Compact parallel coupled‐line bandpass filter with wide bandwidth and suppression of spurious
Author(s) -
Chin KuoSheng,
Chen YiPing,
Lin KenMin,
Chiang YiChyun
Publication year - 2009
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.24513
Subject(s) - spurious relationship , band pass filter , bandwidth (computing) , microstrip , electronic engineering , microwave , engineering , coupling (piping) , filter (signal processing) , topology (electrical circuits) , computer science , electrical engineering , telecommunications , mechanical engineering , machine learning
The re‐entrant coupling structure is applied in a parallel‐coupled microstrip filter design to ensure a wide bandwidth, compactness, and the suppression of spurious. Fan design graphs are provided to determine the dimensions of each coupled stage. The features and advantages of the proposed circuit are analyzed in detail. Two experimental filters with design bandwidths of 70 and 90% are fabricated to verify the effectiveness of the modified structure. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 1795–1800, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24513