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Compact filtering power dividers with wide upper stopband

  • Gaoya Dong (a1), Weimin Wang (a1) and Yuanan Liu (a1)

Abstract

A series of compact filtering power dividers (FPDs) with simple layouts are proposed based on coupling topology. The structure of the presented FPD1 is composed of three resonators and one isolating resistor. These FPDs can be designed based on coupling matrix filter theory. A half-wave transmission line is employed in FPD2 to introduce a transmission zero (TZ) locating at 1.27f0. The FPD3 is designed by replacing quarter-wave transmission lines in FPD2 with quarter-wave coupled lines, which will produce a TZ locating at 1.96 f0 and extend upper stopband bandwidth. For verification, three FPDs centered at 2.45 GHz are fabricated and measured. All measured results are in good agreement with the full-wave simulation results.

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Corresponding author

Author for correspondence: Weimin Wang, E-mail: wangwm@bupt.edu.cn

References

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Compact filtering power dividers with wide upper stopband

  • Gaoya Dong (a1), Weimin Wang (a1) and Yuanan Liu (a1)

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