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Compact sharp cutoff wide stopband low‐pass filter using defected ground structure and spurline
Author(s) -
Dwari Santanu,
Sanyal Subrata
Publication year - 2006
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.21765
Subject(s) - stopband , passband , attenuation , cutoff frequency , transition band , microwave , elliptic filter , microstrip , cutoff , low pass filter , materials science , filter (signal processing) , band stop filter , physics , acoustics , optics , optoelectronics , engineering , electrical engineering , band pass filter , prototype filter , telecommunications , quantum mechanics
A novel compact microstrip low‐pass filter is proposed using defected ground structure and spurline. The measured passband to stopband attenuation slope is more than 73 dB/GHz. Electrical length of the filter is less than 20% of the guided wavelength at 3 dB cutoff frequency. Measured stopband attenuation is greater than 20 dB over more than 17.5 GHz band. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 1871–1873, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21765