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Miniaturized dual‐mode bandpass filter using stub‐loaded square ring resonator
Author(s) -
Singh Yatendra K.,
Chakrabarty Ajay
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.24482
Subject(s) - stub (electronics) , resonator , microwave , band pass filter , square (algebra) , electronic engineering , dual mode , acoustics , engineering , electrical engineering , materials science , topology (electrical circuits) , physics , telecommunications , mathematics , geometry
This article presents a novel miniaturized bandpass filter using a square ring. Each side of the ring is loaded almost at one of the ends with a stub. The stub increases the current path length; bring down the resonance frequency of the ring. The other end of each stub is terminated with a square patch whose size is kept such so as to give a dual‐mode characteristic. The proposed filter offers a size reduction of 67% over an unloaded square ring resonator. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 1927–1929, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24482