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Reduced‐size wideband microstrip bandpass filter with low loss and high selectivity
Author(s) -
Tümer Tolga,
Görür Adnan
Publication year - 2005
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.20751
Subject(s) - passband , band pass filter , insertion loss , wideband , bandwidth (computing) , microstrip , resonator , microwave , materials science , electronic engineering , filter (signal processing) , butterworth filter , prototype filter , acoustics , physics , optoelectronics , electrical engineering , telecommunications , low pass filter , engineering
A reduced‐size low‐loss high‐selectivity wideband microstrip bandpass filter is proposed using three λ g /4 short‐circuited stubs and folded λ g /2 connecting lines between them. The filter has 2 n − 1 poles within the passband, whereas it consists of only n resonators. The 3‐dB bandwidth of the filter is about 92% at 2.1 GHz. The insertion loss is around 0.8 dB within the passband. The filter is verified by both simulation and measurement. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 45: 147–148, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20751