A High-Selectivity Tunable Dual-Band Bandpass Filter Using Stub-Loaded Stepped-Impedance Resonators

@article{You2014AHT,
  title={A High-Selectivity Tunable Dual-Band Bandpass Filter Using Stub-Loaded Stepped-Impedance Resonators},
  author={Bin You and Long Chen and Yaping Liang and Xuan Wen},
  journal={IEEE Microwave and Wireless Components Letters},
  year={2014},
  volume={24},
  pages={736-738}
}
A novel varactor tunable dual-band bandpass filter (BPF) using stub-loaded stepped-impedance resonators is proposed in this letter. Compared with the traditional tunable filters, the source-load coupling and T-shape stub-loaded lines are employed in this design. The proposed BPF architecture has the advantages of high selectivity and less control voltages. In the overall tuning range, the proposed filter is designed with 5-6 transmission zeros and more than 30 dB rejection between the two… CONTINUE READING
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