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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2012-06-08
Third-Order Dual-Band Bandpass Filter with Controllable Bandwidths Using Short Stub-Loaded Resonators
By
Fu-Chang Chen,

    Dr. Fu-Chang Chen

    School of Electronic and Information Engineering

    South China University of Technology

    China

    Homepage

Jie Ming Qiu

    Dr. Jie Ming Qiu

    School of Electronic and Information Engineering

    South China University of Technology

    China

    Homepage

Progress In Electromagnetics Research Letters, Vol. 32, 101-108, 2012
doi:10.2528/PIERL12050105 | Google Scholar

Abstract
A compact microstrip-line dual-band bandpass filter using a short stub-loaded resonator is presented. The resonator is formed by loading one short stub in shunt to a simple uniform impedance line. A key merit of the filter configuration is that the center frequency and bandwidth of the first passband can be conveniently controlled by properly adjusting the lengths of the short stubs and the coupling between the short stubs, whereas those of the second passband are fixed. To illustrate the concept, a third-order dual-band filter is designed, fabricated and measured. Simulated and measured results are found to be in good agreement with each other.
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Citation
Fu-Chang Chen, and Jie Ming Qiu, "Third-Order Dual-Band Bandpass Filter with Controllable Bandwidths Using Short Stub-Loaded Resonators," Progress In Electromagnetics Research Letters, Vol. 32, 101-108, 2012.
doi:10.2528/PIERL12050105
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