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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2013-10-17
Two Kinds of Dual-Band Bandpass Filter Based on a Single Square Ring Resonator
By
Kun Deng,

    Dr. Kun Deng

    School of Electronic Engineering

    Xidian University

    China

    Homepage

Shou Jia Sun,

    Dr. Shou Jia Sun

    School of Electronic Engineering

    Xidian University

    China

    Homepage

Shuai Yang,

    Dr. Shuai Yang

    School of Electronic Engineering

    Xidian University

    China

    Homepage

Bian Wu,

    Prof. Bian Wu

    School of Electronics Engineering

    Xidian University

    China

    Homepage

Chang-Hong Liang

    Professor Chang-Hong Liang

    School of Electronics Engineering

    Xidian University

    China

    Homepage

Progress In Electromagnetics Research C, Vol. 44, 251-261, 2013
doi:10.2528/PIERC13092506 | Google Scholar

Abstract
In this paper, two kinds of dual-band bandpass filter (BPF) based on a single square ring resonator are presented, which are realized by loading capacitance or inductive stubs, respectively. Even-odd-mode analysis is applied to explain their model characteristics. One filter is implemented by loading a pair of capacitance stubs, and both in-band couplings can be tuned in a reasonable range. Another filter is completed by loading a pair of inductive stubs, and the first and second passband center frequencies can be controlled independently. For demonstration, two filters operating at 2.45/5.25 GHz and 2.4/5.25 GHz are designed and fabricated. The simulated and measured results show good agreements.
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Citation
Kun Deng, Shou Jia Sun, Shuai Yang, Bian Wu, and Chang-Hong Liang, "Two Kinds of Dual-Band Bandpass Filter Based on a Single Square Ring Resonator," Progress In Electromagnetics Research C, Vol. 44, 251-261, 2013.
doi:10.2528/PIERC13092506
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