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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2012-06-11
An Improved CRLH Wide-Band Filter Using CSRRs with High Stop Band Rejection
By
Peng Su,

    Dr. Peng Su

    School of Electronic Engineering

    University of Electronic Science and Technology of China

    China

    Homepage

Xianqi Lin,

    Dr. Xianqi Lin

    School of Electronic Engineering

    University of Electronic Science and Technology of China

    China

    Homepage

Rong Zhang,

    Dr. Rong Zhang

    School of Electronic Engineering

    University of Electronic Science and Technology of China

    China

    Homepage

Yong Fan

    Prof. Yong Fan

    School of Electronic Engineering

    University of Electronic Science and Technology of China

    China

    Homepage

Progress In Electromagnetics Research Letters, Vol. 32, 119-127, 2012
doi:10.2528/PIERL12040206 | Google Scholar

Abstract
In this paper, a filter based on Composite Right/Left Handed (CRLH) structures is presented, wide pass band is obtained due to the balanced CRLH properties. Besides, it has Complementary Split-Ring Resonator (CSRR) units etched on ground plane, which improves signal rejection in its upper stop band. The CSRRs work as a stop band filter in a band near the main pass band of the filter and bring in equivalent negative permittivity. CSRRs and CRLH units occupy the two sides of substrate respectively and have little mutual affection in the pass band, so either structure can be designed independently, without considering the effect from the other. The improvement occupy no additional space, the size is as large as the original filter. Detailed design procedure is illustrated. Good agreements among simulation and measurement results are achieved. In addition, the filter has a semi-enclosed structure and compact size, and the performance is greatly improved.
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Citation
Peng Su, Xianqi Lin, Rong Zhang, and Yong Fan, "An Improved CRLH Wide-Band Filter Using CSRRs with High Stop Band Rejection," Progress In Electromagnetics Research Letters, Vol. 32, 119-127, 2012.
doi:10.2528/PIERL12040206
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