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PIER PIER B PIER C PIER M PIER Letters
2011-07-19
Design of Compact Quadruplexer Based on Defected Stepped Impedance Resonators
By
Jian Zhong Chen,

    Dr. Jian Zhong Chen

    Xidian University

    China

    Homepage

Nan Wang,

    Dr. Nan Wang

    Xidian University

    China

    Homepage

Kun Deng,

    Dr. Kun Deng

    School of Electronic Engineering

    Xidian University

    China

    Homepage

Shuai Yang

    Dr. Shuai Yang

    School of Electronic Engineering

    Xidian University

    China

    Homepage

Progress In Electromagnetics Research, Vol. 119, 19-33, 2011
doi:10.2528/PIER11061301
Abstract
A novel compact quadruplexer based on defected stepped impedance resonator (DSIR) with high isolation is presented in this paper. The proposed quadruplexer consists of a common input feeding line, four kinds of folded DSIRs and four individual output feeding lines. Considering the loading effect among channel filters, the input DSIRs must be properly located with respect to the common feeding line in order to realize all external quality factors at the same time, so that the loading effect becomes very small. Furthermore, since the compact DSIRs resonate at multiple fundamental frequencies, a high-isolation quadruplexer with size reduction can be obtained. A fabricated prototype of the proposed quadruplexer is developed. The channel performance obtained by measurement and EM simulation are in good agreement.
Citation
Jian Zhong Chen, Nan Wang, Kun Deng, and Shuai Yang, "Design of Compact Quadruplexer Based on Defected Stepped Impedance Resonators," Progress In Electromagnetics Research, Vol. 119, 19-33, 2011.
doi:10.2528/PIER11061301
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