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A slotted strip as a key element of the simplest notch and bandstop filters
Author(s) -
Kirilenko Anatoly A.,
Mospan Lyudmyla P.
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.20889
Subject(s) - band stop filter , key (lock) , element (criminal law) , computer science , telecommunications , computer security , bandwidth (computing) , low pass filter , law , political science
In this paper, a new notch and bandstop filters are proposed and investigated. A rejection section, based on a thin slotted H‐plane strip, provides a symmetric frequency response with very low insertion loss out of the stopband. The rejection phenomenon is explained by the simultaneous excitation of two eigenoscillations with low and high Q ‐factors. The results of numerical design and measurement data are given for a 3% notch filter and a 2% three‐section bandstop one. Such a notch filter is probably the simplest one due to its easy fabrication and has the potential to be incorporated in a waveguide circuit by placing it between the waveguide flanges. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 46: 20–24, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20889