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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2015-03-25
A Novel Coupled-Defected Ground Structure with Enhanced Coupling-Coefficient and Its Application in Filter Design
By
Si-Si Chen,

    Dr. Si-Si Chen

    Department of Electronic Engineering

    Zhejiang Sci-Tech University

    China

    Homepage

Lin Li,

    Dr. Lin Li

    Zhejiang Sci-Tech University

    China

    Homepage

Zhi-Yong Chen

    Dr. Zhi-Yong Chen

    Department of Communication Engineering

    Zhejiang Sci-Tech University

    China

    Homepage

Progress In Electromagnetics Research Letters, Vol. 52, 93-97, 2015
doi:10.2528/PIERL15020502 | Google Scholar

Abstract
A novel coupled-defected ground structure (C-DGS) with inductors inserted between the adjacent defected ground structure (DGS) cells is presented in this paper. In comparison to conventional C-DGS structure, the proposed C-DGS exhibits a larger coupling-coefficient, resulting in a wider stop-band. Moreover, the stopband can be adjusted flexibly without modification since the coupling-coefficient varies with the change of the inductance of the inserted inductor. Based on this new C-DGS, a low-pass filter (LPF) using cascaded C-DGS is constructed. The proposed structure is experimentally verified through the demonstration of a low-pass filter design.
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Citation
Si-Si Chen, Lin Li, and Zhi-Yong Chen, "A Novel Coupled-Defected Ground Structure with Enhanced Coupling-Coefficient and Its Application in Filter Design," Progress In Electromagnetics Research Letters, Vol. 52, 93-97, 2015.
doi:10.2528/PIERL15020502
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