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A novel multipassband filter using asymmetric radial stubs
Author(s) -
Sun Xiaofeng,
Tan Eng Leong
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.25609
Subject(s) - stopband , stub (electronics) , passband , filter (signal processing) , electronic engineering , topology (electrical circuits) , materials science , control theory (sociology) , band pass filter , acoustics , engineering , computer science , physics , electrical engineering , control (management) , artificial intelligence
This article presents a novel multipassband filter using asymmetric radial stubs.Asymmetric radial stubs are formed from two single‐radial stubs in different dimensions. The transmission zeros of such asymmetric structure can be controlled by the respective radial stub. By using these asymmetric radial stubs, the transmission zeros of the filter are realized. The multipassband of this filter includes a low‐pass band up to 2.66 GHz and another passband from 5.6 to 6.4 GHz. This filter has the attractive advantage of sharp rejection in the stopband. A demonstration filter is designed, fabricated, and tested. The simulated and measured results are presented. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52:2819–2821, 2010; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.25609