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Fractal‐shaped regular hexagon patch resonators and application in miniaturized band‐pass filters
Author(s) -
La DongSheng,
Lu YingHua,
Liu Ning,
Cui DongNuan,
Zhang JinLing
Publication year - 2011
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.26182
Subject(s) - fractal , resonator , band pass filter , microwave , materials science , topology (electrical circuits) , acoustics , optics , electronic engineering , optoelectronics , physics , mathematics , engineering , mathematical analysis , telecommunications , electrical engineering
In this article, two types of band‐pass filters using fractal‐shaped regular hexagon patch resonators are proposed and optimized in detail.Because of the space‐filling property of the fractal geometry, the resonant characteristics of the filters are reported for the first time and can be adjusted by changing the parameters of the fractal‐shaped structures. Using etched fractal‐shaped defected structures in the regular hexagon patch resonators, the filters have many remarkable advantages, such as compact size, high selectivity, transmission zeros, and simple structure. Two types of band‐pass filters are designed, fabricated, and measured. The measurement results of the proposed band‐pass filters are in good agreement with the simulation ones. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26182