A novel fractal defected ground structure and its application to the low‐pass filter | Zendy

Liu Hai W. | Zendy; Li Zheng F. | Zendy; Sun Xiao W. | Zendy

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A novel fractal defected ground structure and its application to the low‐pass filter

Author(s) -

Liu Hai W.,

Li Zheng F.,

Sun Xiao W.

Publication year - 2003

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.11246

Subject(s) - ground plane , fractal , microwave , stopband , cutoff , microstrip , fractal antenna , electronic engineering , low pass filter , cutoff frequency , acoustics , topology (electrical circuits) , filter (signal processing) , engineering , band pass filter , electrical engineering , physics , mathematics , mathematical analysis , telecommunications , microstrip antenna , antenna factor , quantum mechanics , antenna (radio)

A novel fractal defected ground structure (DGS) for the microstrip line is proposed. The DGS unit lattice is realized by replacing the etched rectangular holes in ground plane with a Sierpinski carpet. The proposed fractal DGS can provide better bandgap, slow‐wave characteristics, and selectivity at cutoff than the conventional dumbbell‐shaped DGS. Furthermore, the fractal DGS is applied effectively to design a low‐pass filter (LPF). A comparison between simulation and measurement confirms the validity of the LPF configuration and design procedure. A simple structure and high‐power handling capability are obtained from the proposed LPF. © 2003 Wiley Periodicals, Inc. Microwave Opt Technol Lett 39: 453–456, 2003

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