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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2012-12-20
A Novel Microstrip LC Reconfigurable Bandpass Filter
By
Qian-Yin Xiang,

    Professor Qian-Yin Xiang

    School of Information Science and Technology

    Southwest Jiaotong University

    China

    Homepage

Quanyuan Feng,

    Prof. Quanyuan Feng

    School of Information Science and Technology

    Southwest Jiaotong University

    China

    Homepage

Xiao-Guo Huang,

    Dr. Xiao-Guo Huang

    China Electronic Technology Group Corporation No.36 Institute

    China

    Homepage

Ding-Hong Jia

    Dr. Ding-Hong Jia

    School of Information Science and Technology

    Southwest Jiaotong University

    China

    Homepage

Progress In Electromagnetics Research Letters, Vol. 36, 171-179, 2013
doi:10.2528/PIERL12111202 | Google Scholar

Abstract
In this paper, we propose and develop a novel reconfigurable bandpass filter based on microstrip LC resonators. The equivalent circuit model of the proposed filter is presented. The filter can be reconfigured by tuning the capacitance of the microstrip LC resonators. A reconfigurable bandpass filter based on semiconductor varactor diode loaded microstrip LC resonators with a tuning range of 2.496 GHz to 2.937 GHz, and a fractional bandwidth of 6.3% to 8.2% is demonstrated, and the measured insertion loss is 1.7 dB to 3.8 dB. The out-band rejection is better than 25 dB up to 10 GHz.
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Citation
Qian-Yin Xiang, Quanyuan Feng, Xiao-Guo Huang, and Ding-Hong Jia, "A Novel Microstrip LC Reconfigurable Bandpass Filter," Progress In Electromagnetics Research Letters, Vol. 36, 171-179, 2013.
doi:10.2528/PIERL12111202
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