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Design of a compact wideband bandpass filter
Author(s) -
Packiaraj D.,
Vinoy K. J.,
Ramesh M.,
Kalghatgi A. T.
Publication year - 2010
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.25206
Subject(s) - band pass filter , stub (electronics) , wideband , resonator , ground plane , electronic engineering , bandwidth (computing) , acoustics , microwave , engineering , electrical engineering , physics , telecommunications , antenna (radio)
This article presents the analysis and design of a compact multi‐layer layer, high selectivity wideband bandpass filter using stub loaded and ‘U’ shaped resonators over a slotted bottom ground plane. While the resonators with folded open circuit stub loadings create the desired bandpass characteristics, the ‘U’ shaped resonators reduce the size of filter. The slotted bottom ground plane is used to enhance the coupling to achieve the desired bandwidth. The proposed filter has been analyzed using circuit model, and the results were verified through full wave simulations and measurements. The fabricated filter is compact and measures a size of 18 mm × 25 mm × 1.6 mm. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1387–1389, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25206