Compact Design of Planar Continuously Tunable Crossover With Two-Section Coupled Lines

@article{Lin2014CompactDO,
  title={Compact Design of Planar Continuously Tunable Crossover With Two-Section Coupled Lines},
  author={Feng Lin and Sai Wai Wong and Qing-Xin Chu},
  journal={IEEE Transactions on Microwave Theory and Techniques},
  year={2014},
  volume={62},
  pages={408-415}
}
This paper presents, for the first time, the design and implementation of a planar tunable crossover. This crossover is derived from the conventional two-section branch-line crossover by substituting its three vertical transmission lines with the two fixed capacitors and one tunable capacitor to realize the tunable passband. By designing its horizontal transmission lines as coupled lines and replacing its vertical transmission lines by three capacitors, the circuit size is greatly reduced… CONTINUE READING

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