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access icon openaccess Compact branch-line coupler with meander high-impedance transmission line and port impedance matching

A novel compact branch-line coupler with meander high-impedance transmission line and port impedance matching is presented in this study. The proposed circular coupler effectively reduces occupied area to 29.1% of conventional rectangular one. The design is validated both by simulation and measurement.

References

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      • 11. He, J., Wang, B.-Z.: ‘Compact rat-race ring coupler with meander high impedance transmission line and port impedance matching’, IET J. Eng., 2015, pp. 13, doi:10.1049/joe.2015.0102.
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http://iet.metastore.ingenta.com/content/journals/10.1049/joe.2016.0023
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