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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2017-07-17
Wide Stopband Microstrip Triplexer Using Common Crossed Resonator and Uniform Impedance Resonator
By
Jian-Feng Qian,

    Dr. Jian-Feng Qian

    School of Electronic and Information Engineering

    South China University of Technology

    China

    Homepage

Fu-Chang Chen

    Dr. Fu-Chang Chen

    School of Electronic and Information Engineering

    South China University of Technology

    China

    Homepage

Progress In Electromagnetics Research Letters, Vol. 69, 79-86, 2017
doi:10.2528/PIERL17041703 | Google Scholar

Abstract
A novel microstrip triplexer with a common crossed resonator and some uniform impedance resonators (UIR) is proposed in this paper. The crossed resonator is theoretically analyzed and proved to be able to resonate at three different frequencies. By using the crossed resonator as the common resonator, a compact structure can be gained as no extra matching network is needed, and the number of the resonator can be reduced effectively. Moreover, a wide stopband is obtained by setting the crossed resonator and UIRs working at the same fundamental frequencies but different higher order resonant frequencies. To demonstrate the design procedure, a triplexer with a third order Chebyshev response in each channel is fabricated and measured. The measured result is in good agreement with the simulated one, showing an attenuation of 20 dB up to 8 times the first channel frequency.
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Citation
Jian-Feng Qian, and Fu-Chang Chen, "Wide Stopband Microstrip Triplexer Using Common Crossed Resonator and Uniform Impedance Resonator," Progress In Electromagnetics Research Letters, Vol. 69, 79-86, 2017.
doi:10.2528/PIERL17041703
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