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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2016-04-15
Microstrip Diplexer Design Using Open/Shorted Coupled Lines
By
Wenjie Feng,

    Dr. Wenjie Feng

    Department of Communication Engineering

    Nanjing University of Science & Technology

    China

    Homepage

Meiling Hong,

    Dr. Meiling Hong

    Department of Communication Engineering

    Nanjing University of Science & Technology

    China

    Homepage

Wenquan Che

    Prof. Wenquan Che

    Department of Communication Engineering

    Nanjing Unviersity of Science & Technology

    China

    Homepage

Progress In Electromagnetics Research Letters, Vol. 59, 123-127, 2016
doi:10.2528/PIERL16030805 | Google Scholar

Abstract
A novel microstrip diplexer with high selectivity and isolation performance is proposed through the combination of two compact bandpass filters composed of open/shorted lines and an open stub, which are designed for LTE application. Six transmission zeros in the upper stopband are used to suppress the harmonic of the microstrip diplexer. The transmission zeros near the passband can be adjusted conveniently by only changing the electrical length of the open/shorted stubs. A diplexer prototype with two passbands at 1.8 GHz and 2.1 GHz is fabricated. The isolation between the two channels is greater than 40 dB from 0.1 to 6.5 GHz.
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Citation
Wenjie Feng, Meiling Hong, and Wenquan Che, "Microstrip Diplexer Design Using Open/Shorted Coupled Lines," Progress In Electromagnetics Research Letters, Vol. 59, 123-127, 2016.
doi:10.2528/PIERL16030805
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