Suspended stripline low-loss bandpass filter with four transmission zeros

Zhao-Xu Xu, Xi Yu, Jia-Qi Liu, Yong-Pin P Chen, Joshua Li Le-Wei

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    5 Citations (Scopus)

    Abstract

    A novel fifth-order suspended stripline (SSL) low-loss bandpass filter with four transmission zeros is proposed. The technique of utilising only one cross-coupling structure introduces four transmission zeros to provide high selectivity. By adjusting the parameters of the coupling open loop, the performance of out-of-band of the filter can be changed. A detailed discussion of this effect of the coupling open loop is given. The highest out-of-band rejection of the filter is more than 70 dB. An SSL bandpass filter is designed, fabricated and measured. The measured results are in good agreement with the simulated results.
    Original languageEnglish
    Pages (from-to)2121 - 2123
    Number of pages3
    JournalElectronics Letters
    Volume51
    Issue number25
    DOIs
    Publication statusPublished - 2015

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