Novel UWB Bandpass Filter Using Stub-Loaded Multiple-Mode Resonator

  title={Novel UWB Bandpass Filter Using Stub-Loaded Multiple-Mode Resonator},
  author={Qing-Xin Chu and Xiao-Hu Wu and Xu-Kun Tian},
  journal={IEEE Microwave and Wireless Components Letters},
Novel compact ultra-wideband (UWB) bandpass filter (BPF) using stub-loaded multiple-mode resonator (MMR) is presented in this letter. The MMR is constructed by loading three open stubs in a uniform-impedance resonator, i.e., one stepped-impedance stub at the center and two uniform-impedance stubs at the symmetrical side locations. Five modes, including two odd modes and three even modes, could be designed within UWB band, and two transmission zeros generated by the stepped-impedance stub… CONTINUE READING
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