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High-selectivity dual-band filtering power divider using stub-loaded quarter-wavelength resonator

Author

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  • Xiao-Lan Zhao
  • Li Gao
  • Jin-Xu Xu
  • Yao Zhang
  • Jun Xiang

Abstract

This article presents a novel structure to design miniaturized dual-band filtering power dividers. It is realized by combining the feeding lines and coupled stub-loaded quarter-wavelength resonators. The operating frequencies can be adjusted easily by controlling the stub length of the resonator. Source–load coupling is employed to generate transmission zeros to enhance the selectivity. A resistor is added to guarantee the isolation and port matching. For demonstration, a dual-band filtering power divider is implemented. Good agreement between the prediction and measurement validates the proposed method.

Suggested Citation

  • Xiao-Lan Zhao & Li Gao & Jin-Xu Xu & Yao Zhang & Jun Xiang, 2015. "High-selectivity dual-band filtering power divider using stub-loaded quarter-wavelength resonator," Journal of Electromagnetic Waves and Applications, Taylor & Francis Journals, vol. 29(16), pages 2216-2223, November.
    • Handle: RePEc:taf:tewaxx:v:29:y:2015:i:16:p:2216-2223
    DOI: 10.1080/09205071.2015.1088405
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